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Why The Government Doesn’t Want You To Buy Less Than 4 Gallons Of Gasoline

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Do you own a lawnmower? A moped, or scooter, or motorcycle? A gas can you just like to keep topped off? A really huge lighter? A Citroën 2CV, which has a tiny 5.5-gallon gas tank? If so, then you have likely bought gasoline in quantities less than four gallons at a time. Did you know the government doesn’t want you to do that? In fact, you may have seen a sticker on a gas pump that says just that: there’s a minimum requirement to buy at least four gallons of gasoline or risk violating federal law. What’s going on here? Can this really be true? Well, it sort of is and it isn’t. Rather, it’s true, but only for one very specific context.

I suppose it’s worth mentioning that this has been a thing for well over a decade. I’ve only encountered it very recently, and in some informal asking around, I found that an awful lot of people weren’t aware of this four gallon minimum thing, so I figured it’s worth looking into. It’s kind of convoluted, so let’s see if we can explain what is actually going on here. It’s also worth noting that while this sounds like some draconian/kafkaesque bureaucratic nonsense, the whole idea of the minimum four gallon purchase rule was actually put in place to help protect everyday people and their gas-powered stuff.

First, let’s look at one of these stickers, which you can clearly see in this Reddit post:

Gas station in Ohio, 4 gal minimum “law”
byu/Bored_Amalgamation inOhio

Okay, so what is going on here, exactly? Why the hell would the federal government care if you bought less than four gallons of gasoline? To understand that, we need to look into the specifics here. The “federal law” is referring to an EPA regulation, and those four gallons are only referring to fuel dispensed from gas pumps that dispense both E15 (gasoline with 15% ethanol mixed in) and E10 (10% ethanol gasoline).

Ethanol has been used as an additive to gasoline for decades, as it is an octane booster, burns more cleanly, and is a renewable fuel, which can be made from crops like corn. It’s also less energy dense than gasoline, and higher concentrations of ethanol can cause corrosion and damage to fuel systems, especially in cars made before around 2001 or so. Ethanol-blended gasoline you may find at a gas station comes in two main forms, E10 and E15 mentioned above.

Since most gas stations do not feel like spending the considerable time and money to install entirely separate pumps for E10 and E15, they will usually use mixed-grade pumps that can dispense E10, E15, and other fuels like E85 FlexFuel. The EPA calls these “blender pumps,” but not in the sense that they could make, say, a smoothie, but because they, duh, blend fuels. The issue here is that equipment with small gasoline motors, like lawnmowers and mopeds and some motorcycles could be damaged by being filled with E15 fuel.

So here’s the problem: if a blender pump just dispensed a lot of E15 into a car, there’s still about a quart to a third of a gallon of E15 in the pump’s hose. That means if someone comes along and wants to buy just one gallon of E10 for their gas-powered roller skates or leaf blower, that one gallon will actually be 33% E15, because of the fuel in the hose, and that much E15 could damage a machine not made to run it.

Here’s how the EPA themselves describes the issue:

On February 7, 2013, EPA approved an alternate blender pump configuration, submitted by RFA, for general use by retail stations that wish to dispense E15 and E10 from a blender pump with a common hose and nozzle. Blender pumps, or multiple-grade dispensers, are fuel dispensers that dispense multiple gasoline-ethanol blended fuels (e.g. E10, E15, and E85) typically through a common hose and nozzle. When two different gasoline-ethanol blended fuels are dispensed from the same hose and nozzle, residual fuel from a prior fueling of E15 may be commingled with a subsequent fueling of E10, resulting in the inadvertent misfueling of vehicles not covered by the E15 partial waivers with fuels containing greater than 10 vol% ethanol.

To mitigate this, the four-gallon minimum rule was decided. That way, whatever fuel was left in the hose would be satisfactorily diluted by the greater volume of the actually chosen fuel. As the EPA explains:

In an effort to address this potential misfueling issue, EPA approved an industry-submitted configuration that requires a minimum purchase of four gallons of fuel from blender pumps that dispense both E10 and E15 from the same hose and nozzle. Such an approach would prevent misfueling by diluting any residual E15 left in the hose from the previous sale of E15. However, groups representing motorcycle owners and lawn mower manufacturers objected to this configuration because their products have gas tanks that are normally two gallons or smaller. In response to these concerns, RFA developed and proposed a third configuration for EPA approval that retail stations may use as an alternative to the currently approved configurations.

At the end of that quote, you see the EPA referring to a “third configuration” to appease “motorcycle owners and lawn mower manufacturers” which is that gas stations must also have a pump that does not dispense fuels with more than 10% ethanol, and must have signage, described here:

“These retail stations must also prominently affix labels to their blender pumps which say “Passenger Vehicles Only. Use in Other Vehicles, Engines and Equipment May Violate Federal Law.” Passenger vehicles in this context do not include nonroad vehicles, engines, and equipment (e.g. marine engines, motorcycles, ATVs, lawnmowers, etc.). Retails stations must also post additional signage informing consumers of the availability and location of the dedicated E10 (or lower) fuel pump.”

Illegalcan

I feel like the EPA could have handled this better if the sign on the blended E15 pumps said something like “Passenger Vehicles Only. Using less than 4 gallons in Other Vehicles, Engines and Equipment May Cause Damage” instead of leaping right to that “May Violate Federal Law” business, which just makes everything more confusing and causes articles like this one to be written.

Really, all of this is just to protect people from screwing up their lawnmowers, but of course it sounds far worse than that. And, back in 2012 when this mandate arrived, politicians wasted no time in making it seem like a colossal violation of the rights of Americans to have full tanks of gas. This is a quote from Rep. Jim Sensenbrenner (R) from Wisconsin:

The latest mandate handed down from the Environmental Protection Agency (EPA) is so ridiculous, even I was shocked. The EPA has now mandated how much gasoline you must buy at certain gas stations. Say hello to the Obama Administration’s four gallon minimum.

Yeah, thanks a lot, Obama.

[Ed Note: The bigger question is how concerning a bit of E15 is mixed in with E10. It’s a 5% delta in ethanol concentration; if done only a few times, how harmful can this really be? -DT].

Screenshot 2025 10 15 At 10.26.28 am

Of course, that statement isn’t remotely true. There’s never been a mandate that everyone has to buy at least four gallons of gas. The mandate is that for blended pumps that can dispense both E10 and E15, you should buy at least four gallons to ensure that you are getting the amount of ethanol that you actually want, so you don’t trash your stuff. You can buy gas by the ounce if you want from other, non blender pumps as much as you want. This is one of those cases where the government is actually trying to be helpful, but a strange lack of understanding how human beings seem to understand things has meant that this law — again, designed to help you not destroy your lawnmower — comes across as an obtuse bit of needless government overreach.

It’s not. It’s actually a decent idea. Pay attention to it, and you won’t kill your mower.

The post Why The Government Doesn’t Want You To Buy Less Than 4 Gallons Of Gasoline appeared first on The Autopian.

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LeMadChef
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This Hellcat-Powered Rectrans Motorhome Is A Wonderful, Terrible Concept That Must Be Made Real

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Can you think of any products for sale today that are fundamentally less advanced than some that were made fifty years ago? It’s not common, but motorhomes are a shining example.

In 1973, General Motors introduced a new-from-the-ground-up camper with front-wheel drive, air suspension, and a low-profile aerodynamic body. Giving the largest, richest auto maker in the world at the time a clean sheet of paper to make the ultimate camper in the space age of the sixties meant that you’d get something very hard to replicate, even decades later. General Motors came up with a no-holds-barred futuristic machine that makes today’s RV products of the cottage industry who builds them seem hopelessly outdated.

Now, don’t go immediately faulting the RV makers. There’s no way that small, low-volume manufacturers can accomplish what the largest automobile companies in the world with almost endless technical resources could do. However, if any of the Big Three or other major automaker decides to get back into the motorhome game, it’s fun to imagine the possibilities.

Gmc Motorhome 1973 Images 1 29
General Motors
Gmc6
General Motors

Our Mercedes Streeter presented this scenario a few weeks back as an Autopian Asks. We had a lot of interesting answers from commenters like Honda, Toyota, or even Tesla, but the one that Mercedes herself presented about a Stellantis solution seemed comical yet appealing. I can see a way to rather easily make her request a reality with a little help from another highly advanced design from the same early-seventies pre-gas crunch heyday of motorhomes. This one was just as radical looking as the famous GM camper, and it’s highly worth revisiting and cleaning up some details that had people calling it “ugly”.

Did I mention that it’s going to be extremely fast?

Get Your Motorhome Running, Head Out On The Highway

I’m not sure about your neighborhood, but in mine, it seems like every corner now features some kind of retirement center. With the population getting older, people in their later years often want to downsize to free up money and time that they no longer want to spend on lawn crews or snow plowing. Plus, a lot of these Boomers want to spend much of their year now living out the Easy Rider fantasy of hitting the open road for long stretches of time.

Naturally, these seventy-somethings are for the most part not going to get on custom Harleys and ride for months straight across the country. No, they’ll want a camper for the job, even if they don’t use the area behind the seats for more than the bathroom and making coffee. However, I think a lot of them are going to be a bit shocked by the motorhomes available. They’ll need to adjust their expectations to understand that these things simply don’t provide a driving experience akin to a car or even a large pickup truck. Also, as Mercedes Streeter has pointed out, in many cases the engineering, assembly quality, and materials fall below what they’d expect to see on a passenger car from a major OEM product.

Modern Homes
Jayco

Plus, the vast majority of these things are just fiberglass boxes with slightly radiused edges decorated with the most lurid Mike-Tyson-face-tattoo graphics imaginable. You can see how these fresh retirees who are new to motorhomes might balk at spending six figures on something that doesn’t seem as well-designed or built as their granddaughter’s used Corolla.

With the recreational vehicle market supposedly growing, it would seem like a great opportunity for a Big Three maker to get back in the game with an OEM-level product. Or, at the very least, they could partner with an existing RV manufacturer to provide them with some components and know-how that’s a cut above the mainstream. Mercedes Streeter had the idea of getting Stellantis into the mix with some stunning mechanical components, and I’d like to resurrect and rehabilitate an underappreciated motorhome. The one I have in mind wasn’t from a major manufacturer but was the vision of a designer who had helped to create some of the Big Three’s greatest American car styling icons ever. Yes, we’re going to dredge up the Rectrans Discoverer.

Spock, My Shuttlecraft! My (Shatner Pause) Shuttlecraft!

When seasoned veterans of large car companies go off on their own, the results of their efforts are often otherworldly. Former GM executive John DeLorean’s gullwinged stainless steel sports car is proof of that. It was the same case with the man who had hired DeLorean at Pontiac: “Bunkie” Knudsen. Knudsen had left GM to become President of Ford; after getting fired by Henry Ford II, Bunkie decided to go after the growing RV market with a unique product that would be head and shoulders above the typical offerings (he was possibly aware of the upcoming GMC Motorhome).

Rectrans
Rectrans

Knudsen knew just who to hire to design this next generation camper: Larry Shinoda. Shinoda had been involved with high-profile projects under the legendary Bill Mitchell, including the Mako Shark I and II, which became the C2 and C3 Corvettes, respectively. Shinoda followed Knudsen to Ford, where he worked on the Mustang Boss 302. Together, the two had a goal in mind, as described by Mercedes Streeter in her excellent post on the Rectrans:

Rectrans Inc. was founded in 1970 by Knudsen and featured Shinoda as its designer. As reported by eBay Motors back in 2017, the two had one goal: Build a motorhome to score just 10 mpg.

Now, this doesn’t sound like much of a challenge. (However) the Rectrans Discoverer was a larger motorhome featuring a chunky V8 engine and built in the 1970s. With that in mind, 10 mpg might be a big ask. Old gas-powered large motorhomes are notorious for single-digit fuel economy.

To achieve this goal, it’s reported that the Rectrans Discoverer 25 was subject to wind tunnel testing, which resulted in the Star Trek shuttlecraft shape that you see here. The typical motorhome of the day was basically a rectangular box on wheels. And remember, this predates the GMC Motorhome by a couple of years.

The Rectrans Discoverer 25 rides on a Dodge M-300 chassis, which found itself under other motorhomes of the day. Power comes from a 413-cubic-inch Chrysler RB big-block V8. In this application, it’s making 265 HP. It’s unclear if the reported goal of 10 mpg was ever met. I found a few brochures for the Discoverer 25 and none of them even mention fuel economy numbers.

052319 1971 And 1972 Rectrans Di
Facebook Marketplace

Interestingly enough, the wheelbase of that Rectrans 25 is almost identical to the current RAM pickup; a testimony to how large vehicles have become today. Does that mean that we could find the old fiberglass molds for the old Rectrans, or just digitize a decrepit for-sale example, and recreate the thing on top of a modern RAM chassis? I’m not sure what’s possible, but that’s exactly what we’re going to propose for our Hellcat-powered motorhome, the Hell Rec’R. Let’s begin..

Now The Name, That’s Ugly

Interestingly, the styling of the Rectrans has been frequently criticized by viewers who say “it’s so ugly it’s beautiful” and other such hackneyed quips. I don’t understand the dislike, but I do think the detailing on the thing is a bit horrific and negatively affects the shape.

Rectrans Front 10 5
Rectrans

First, the recognizable Dodge grille and what I can assume is a windshield from the same vehicle moved several feet apart make the front end appear to be a full-sized van that went all Stay-Puft marshmallow on us. Combined with the tiny-looking wheels, you get a cartoonishly bloated appearance. Also, the triangular flat glass panels on the upswept area behind the driving compartment look rather clunky and are almost certainly a victim of this small company’s inability to make a vast curved window for the space. Some minor tweaks will go a long way to fixing this.

I’ve modified the nose to be smoother and incorporate a Charger-style grille with an LED ring sunken into the front. The chrome bumper is gone, replaced by body colored fascia with brake vents and a splitter. Yes, it’s a Mopar, so you know we’ll have to keep the yellow splitter guards in place long after the thing leaves the dealer lot. Flared round wheel openings improve the appearance as well, but the biggest improvement to me is from painting the roof black from the windshield all the way over those disjointed triangular windows. This visually cleans up that space quite nicely and lets you experience Shinoda’s design without being distracted by all of those triangles.

Hell Recr Revised 10 7

How about an open-topped motorhome? Why not offer removable T-tops over the driver and front passenger; you could easily lift these up and stow them inside behind the dinette in the motorhome?

Hell Rerc T Tops 10 7

Here’s an animation of the original Rectrans and the Hell Rec’R.

Hell Re=cr Animation 10 7 3

In the back, you can see how the original Rectrans has a sunken area to visually lighten up the mass and round off-the-shelf double-shot round taillights (a little bit of Corvette there, Larry?).

Rectrans Discoverer 800 2

Our Hell Rec’R would paint that area a darker color to further break up the mass and add in wide taillights similar to a Charger. The chrome bumper is gone, replaced by the rolled body-colored pan.

Ractrans Rear 10 7
ebay

The animation shows the differences:

Ractrans Rear 10 7 Anim

Well, we’ve made the body changes, but how are we going to make this thing actually move? Well, as advanced as the GMC Motorhome was our reborn Rectrans will stay relatively conventional with the RAM frame and mechanicals. Of course, those mechanicals underpin a nice-driving pickup truck with four-wheel disc brakes and up-to-date suspension technology that the original Rectrans couldn’t dream of. I’m seeing complete pickup frames with essentially everything except the body shipped to a manufacturer in Elkhart, Indiana where a fiberglass monocoque with any needed aluminum reinforcements and steel frame extensions would be added on. Stellantis could provide the electronics, instruments, and wiring to basically make this a factory-sanctioned and even factory-warrantied project that just happens to be assembled in an off-site location by seasoned motorcoach makers. Actually, this whole thing seems remarkably and frighteningly producible.

Chassis Rectrans 10 7

I would imagine that we could make RAM Hell Rec’Rs in far less boisterous versions as well. A less-powerful Hemi V8 or better yet a Cummins turbo diesel combined with less aggressive tires and suspension might yield the more luxury-oriented RAM Home Rec’R:

Home Recr Revised 10 7

Stellantis and whatever northern Indiana RV specialist would have you covered, regardless of your tastes, or lack thereof. If the journey is just as important as the destination, then either of these revived Rectrans products would be for you.

Yes, We’d Have Red LED Lighting Everywhere

Looking at the original floorplan of the Rectrans, we’d replicate much of it for the Hell Rec’R inside with a luxurious cabin designed basically for a traveling couple, though it could easily convert to something that would sleep a total of four people if you convert the dinette.

Rectrans Floor Plan 10 4

Mercedes Streeter requested that the interior of this Hellcat-powered camper be in tones of black and grey with prominent Hellcat logos on things like the bedspread, the walls, and countertops. That sounded like something that went well beyond the limits of good taste and common sense so I have no problem doing it.

Hell Recr Interior 2 10 7 2

Those Rectrans windows really lightened up the interior; if you ever needed a reason to believe that Larry Shinoda was a designer on par with more well-known names, this spacious-looking interior shell is more proof. Here’s a fun feature of the Hell Rec’R: those removable T-tops could come off at the campsite, and a screen net might stretch over the opening to keep out the ‘skeeters to give you a bug-free conversation “porch.” Note the dash taken straight out of a new RAM pickup and seats from a Hellcat Charger or Challenger.

Hell Recr Interior 10 7

Home Is Where The Hellcat Is

Some would say that the greatest injustice done to legendary designer Larry Shinoda was when Chrysler stole his concept of the Jeep ZJ without crediting him (they eventually settled out of court). To me, I think the worst crime is the lack of respect for his Rectrans design. I really wanted to rehabilitate the look of this misunderstood motorhome that gets far too much hate and not nearly enough of the recognition that it deserves, and glad that I got the chance here.

I tend to ignore the wisdom of people who own nearly two dozen vehicles they don’t even drive with much regularity, but with this Hellcat motorhome, I think Mercedes Streeter was on point. Or maybe I’m just getting caught up in the distorted vision of reality that affects most of the staff. Either way, I think that the Hell Rec’R is something that needs to exist right now. Am I wrong?

The post This Hellcat-Powered Rectrans Motorhome Is A Wonderful, Terrible Concept That Must Be Made Real appeared first on The Autopian.

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LeMadChef
17 hours ago
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Denver, CO
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16 Years Ago, A Company Tried Making A 140 MPG Diesel Motorcycle Using The Engine Of A Car

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The words “diesel” and “motorcycle” aren’t often seen paired together, and when they are, the results are sometimes questionable. One company tried to change that. The EVA Products Track T-800CDI was supposed to be the best of both worlds. It was a big touring bike that got the fuel economy of a small motorcycle, and did so using the teensy turbodiesel engine from a city car. This was supposed to be the world’s most advanced diesel motorcycle with 560 miles of range, yet there’s a chance that you’ve never even heard of it.

The diesel motorcycle is a strange branch on the tree of motorbike history. You would think that the two are incompatible. Diesel engines tend to be heavy, shaky, with low redlines, and with low power compared to gasoline motorcycle engines. Motorcycles themselves also tend to be ridden by folks looking to have fun, and not necessarily to save money.

It should be no surprise, then, that diesel motorcycles have never really caught on. I have written an extensive history series on all kinds of diesel motorcycles, and you’ll note that none of them are in production today. Most of them sold barely enough copies to be considered production vehicles. If you have some spare time this weekend, I highly recommend reading my stories on the Boccardo 1200 Aéro Diesel, the Star Twin Thunder Star 1200 TDI. Both of these are fascinating engineering projects, but have largely faded into the pages of history. There are plenty of smaller diesel ventures throughout history, and of course, people who still make their own diesels today.

Boccardo

Yet, there were really only two diesel motorcycles that could be classified as being mass-produced, and those were the HDT M1030M1 combat bike, which was built to help streamline the U.S. military’s fueling schemes, and the Royal Enfield Diesel, which was built for riders who wanted to save money above literally everything else. Of those two, only the Royal Enfield sold more than 1,000 copies.

The Track T-800CDI is interesting in part because it came after so many of the diesel motorcycles of the past failed to have staying power.

Track T800 Cdi
Lech500 – CC BY-SA 4.0

But this motorcycle was supposed to be better. It would have real, usable power, incredible riding range on a single tank, and be an adventure touring machine. Basically, the T-800CDI is more or less like a BMW GS or a Triumph Tiger, but diesel.

An Evolution Of An Old Idea

The Track T-800CDI was the brainchild of Erik Vegt, the CEO of EVA Products of the Netherlands. Prior to building the T-800CDI, Erik was known for building desert rally motorcycles with large fuel tanks and reinforced suspensions.

In an old video on YouTube, Erik explains that he started the Track project in 2006 as the vehicle for a new way to look at mobility. Check it out:

Erik, who often rode off-road motorcycles across entire countries on long adventures, thought that he could improve where he said other motorcycles fail. In his eyes, motorcycle manual clutches and transmissions are unnecessary failure points on a long journey. Erik also said that squeezing his clutch lever wore out his hand, and he didn’t like not knowing if he was in the optimal gear for his off-roading situation. So, his bike would have a CVT like a scooter.

Then came fuel consumption. Erik said that high fuel economy wasn’t necessarily a goal, but to him, a diesel made sense due to the energy density of the fuel. Sure, a diesel bike won’t win any races, but you don’t need a million horsepower to get across a desert, anyway.

Eva Track T800cdi2
EVA Products

Erik set out to create not just the best motorcycle for crossing vast distances, but also to be a thoughtful machine. In the video, Erik remarks about how heavy a big bike is to pick up after you drop it, so his bike would be easy to pick up.

The entire development of the T-800CDI was like this. Erik says his choice to go diesel wasn’t just because of the energy density, but because he once asked the driver of a diesel truck how far his engine had gone, and was told that a million kilometers had rolled through the odometer – and yet, the engine still started and ran fine. To Erik, this was great. Sure, nobody was going to ride a motorcycle that far, but to have an engine reliable enough to drive that far was appealing to Erik.

Eva 2
EVA Products
Mercedes Streeter

Unfortunately, developing your own engine is crazy expensive, so Erik chose the next best thing. He reached out to DaimlerChrysler for the 799cc turbocharged three-cylinder diesel engine from the Smart Fortwo CDI. This engine is roughly the size of a motorcycle engine and is known for its longevity. With 45 HP and 78 lb-ft of torque on deck, it would make for a decent bike engine, too. Apparently, Daimler was happy to sell Erik engines.

For the transmission, Erik decided to go with a 9-pound scooter-style CVT, and connected that to a shaft drive. In his eyes, a scooter CVT is easier to fix in the desert than a proper manual transmission, and a shaft drive is nearly maintenance-free.

Bonhamsdiesel
Bonhams
Bonhamsdiesel1
Bonhams

The crazy part about all of this is that EVA Products was not a big company. There was Erik and four other employees, and the Track T-800CDI was the company’s debut product.

Yet, somehow, he made it work. Erik even managed to convince a designer from Aprilia and Alfa Romeo to pen the motorcycle’s minimal bodywork. Suspension was handled by Dutch company White Power (which rebranded to WP Suspension), and the ergonomics of the bike were setup to fit taller men, or specifically, the six foot height of Erik. The company claimed that the motorcycle would achieve 112 mpg at 55 mph, or 140 mpg at mixed speeds during daily commutes. Range was quoted to be as high as 560 miles on one tank of diesel. The bike’s weight was 485 pounds, which is not bad for a diesel. It also had a top speed of 109 mph, which was not fast, but more than quick enough for an adventure bike.

While 140 mpg doesn’t sound all that amazing — mini street-legal bikes like the Honda Grom claim as high as 166 mpg — keep in mind that this is a motorcycle designed to fit a big guy and ride across entire countries. It’s impressive for the kind of bike that it is. A BMW GS would be lucky to get half the MPG that the Track T-800CDI claimed.

The Weird Diesel Adventure Bike

Schurgers Design Track
EVA Products

EVA Products finished the first Track T-800CDI prototype in 2006, and then took the first example on grueling off-road trips, where the bike had proven itself to be as reliable and as capable as Erik had hoped for. Then, in 2009, he started loaning some out to the motorcycle press before putting them on sale. Here’s what Chris Newbigging of Motorcycle News reported:

Bizarre
Starting the Track T800CDI gives an unusual experience – it clatters into life like a tractor giving rumbling vibration and the disgusting-smelling exhaust gases rising from the small forward-facing silencer in front of the right footpeg will be familiar to anyone who’s ever got stuck behind an old school bus. You can’t blip the throttle either – doing so will engage drive and send you shooting forward.

Lazy
Open the throttle to pull away and the feeling is like a CVT scooter – the drive itself takes up smoothly but the rising revs are accompanied by rising vibration. The shaft drive has no anti-rising mechanism, so you can feel the torque reaction cause the back end to rise slightly. It’s not a problem, but it adds to the unusual feel.
Opening the throttle hard doesn’t give the rush of drive you’d get with a turbo charged car – acceleration is leisurely even though the engine responds quickly to throttle input. 45bhp still isn’t much despite the respectable torque.

Crude
It doesn’t get better with speed – vibration subsides a little but it’s still enough to be intrusive, and the CVT means the engine is always at the same revs giving a monotous tractor-like noise, which even on MCN’s short test ride became tiresome. Even with an open mind there’s no getting away from the fact is just isn’t quick or refined enough to be compared with petrol rivals on riding enjoyment.

Chris ended his review by saying that the Track was well-designed and seriously tough. However, he doubted that the motorcycle would be a mainstream product because all of the attributes that make the Track an absolute tank take the fun out of motorcycling.

Dieselmototrack
EVA Products

Motorcyclist Magazine was hopeful:

The flat exhaust note makes you think there isn’t much punch, but there is. Once underway, the distinctive three-cylinder lilt develops a rough edge, overlaid with the trademark whistle of its Garrett turbo. There’s no throttle lag: that responsive CVT transmission helps to spool up the turbocharger as soon as you twist the right grip. Acceleration is surprisingly strong from 50 to 70 mph, and the ride-by-wire electronic throttle provides optimum response for any given condition. This is an unbelievably easy motorcycle to ride, especially at slower speeds. The turning circle is tight for a long motorcycle with relatively rangy steering geometry.

WP suspension makes easy meat of speed bumps, and ride quality is excellent. With very little engine braking, it takes a determined squeeze of the front brake lever to reign in 496 pounds of diesel from its 109-mph top speed, but the back brake is useless. There was an occasional loud grinding noise when I backed off the throttle: not enough clearance between the CVT belt and its metal housing. And you notice some vibration through the pegs under hard acceleration. The engine occasionally seemed like it was about to stall when braking to a halt; presumably an ECU mapping issue.

Apart from those relatively minor niggles, the EVA Track is an impressive package. I really enjoyed the bike’s practical, real-world performance, coupled with ease of riding, economy and innovation. Audi has won the 24 Hours of Le Mans three times on 100 percent diesel SynFuel. It’s time for the motorcycle world to take notice, and the Track T-800CDI just might be the bike to make that happen.

When Erik took the bike on tours of Europe, he remarked that riders of limited mobility loved the lack of shifting. He also joked about the times when gas station attendants freaked out because they thought he was pumping a gasoline bike full of diesel.

On The Wrong Track

12710661 (1)
Car & Classic Listing

However, when it came time to put the bike on the market, things fell apart. The Track T-800CDI was first put on sale in Holland. However, per Erik’s own words, the only way his company was to survive was if it spread out across Europe, the developing world, and then to North America. The starting price of the Track T-800CDI was £15,000 in 2009, or what was roughly $23,000 at the exchange rates in 2009. According to Classic Driver, the price for the T-800CDI was €18,750 in 2011.

This put the Track at a disadvantage. A 2009 BMW GS was £11,250, and was built by a known company with a lot of history. EVA Products was asking buyers to pay more money to take a chance on an unknown brand and a weird concept.

Diesel Motorcycle 3
EVA Products

Erik saw the T-800CDI as only the beginning. He projected that diesel was only going to get cleaner and more widespread. The Track bikes were supposed to advance with the times, getting lighter and accepting even more fuels, like natural gas. When talking about the future, Erik was sure that some of the big motorcycle names would work on hydrogen or electric, but that there almost had to be a place for diesel. After all, it’s not like you’re going to ride an electric motorcycle across any desert.

Unfortunately, these statements were made only a couple of years before Dieselgate took hold and changed the trajectory of diesel forever. Did diesel motorcycles even have a future before Dieselgate? Honestly, I doubt it. But Dieselgate certainly did not help.

Schurgers Design Track Diesel Mo
EVA Products

Erik’s global expansion never came, and the motorcycle was sold in Holland until 2013. EVA Products went under shortly after. It’s believed that around 50 examples were built, and of those, few are on the road today. According to European motoring magazine Auto Motor Klassiek, EVA Products needed to sell at least 100 units a year, and, sadly, the company couldn’t do it. Amazingly, I know of one of these that made it to America, and it is still running today.

Thus, the dream of the diesel motorcycle, at least for the perhaps dozens of people who have such a dream, remains elusive. Nearly every single diesel motorcycle that has been pitched or has gone into production was a niche product that eventually failed. Even the mass-produced ones didn’t have staying power, either.

Still, I just love stories like this. The world would be a much duller place if there weren’t people like Erik trying out crazy ideas to see if they would work. So, the Track T-800CDI might have been a failure, but I’m glad it existed and, admittedly, it’s one of my white whales.

The post 16 Years Ago, A Company Tried Making A 140 MPG Diesel Motorcycle Using The Engine Of A Car appeared first on The Autopian.

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LeMadChef
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A Cardboard Magnate Spent Decades Overpaying For Cars To Help People In Need, Now He’s Selling All 1,300 Of Them

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Most car enthusiasts consider themselves lucky if they get the chance to own their dream car just once. Some of us, like me, consider ourselves extraordinarily blessed to have 15 of our favorite cars. Rarer than that is when someone owns hundreds of cars or more. One businessman in rural Alabama might have the largest car collection in America. Cardboard magnate Greg Rusk is said to own up to 1,300 cars, and at least half of them were purchased for way too much money to help local families in need. Now, in a massive multi-part auction, Rusk is selling his collection off in a no-reserve auction so all sorts of enthusiasts can enjoy his decades of finds.

Mass collectors can be a bit controversial in the car enthusiast world. Many folks believe that cars are meant to be driven, and even someone with just a dozen cars can’t drive them all like they should. I’m guilty of this, as most of my cars rarely drive more than 500 miles in a year, if that. Then you have folks who have even more cars than I, like Derek Bieri from Vice Grip Garage or Greg Rusk here, whose cars can sit for years, getting flat tires, varnished fuel, and inches of dust. Mr. Rusk is giving enthusiasts the chance to put his cars back on the road.

The first batch of Rusk’s cars, well more than 200 vehicles, will be sold in October in an auction that Hagerty Marketplace is calling the Generous Collection. Approximately 150 of these cars are for sale right this moment in auctions, with roughly another 50 posted by Tuesday. The variety in Rusk’s collection is impressive, and includes everything from old conversion vans to Mazda RX-8s, pickup trucks, and even plenty of German cars. Many of these cars have covered tons of miles, yet look fantastic. Some are projects, and some are garage queens. Rusk was not a typical rich guy car collector, which means that there’s something for everyone here.

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Hagerty

But this begs the question. How does one guy end up with over a thousand cars in the most random car collection in America? Rusk has a pretty fascinating explanation.

From Cadillacs To Everything Else

Greg Rusk is currently the owner of Rusken Packaging, Inc., a cardboard packaging juggernaut headquartered in Cullman, Alabama. The company was founded in 1974 by Bobby Rusk and operated in a 6,000 square-foot facility. Ownership of the business transferred to Bobby’s son, Greg, in 1992, after Bobby passed.

Since Greg took control of the family business, he’s grown it into a titan that’s considered to be the pre-eminent independent supplier of corrugated packaging in the Southeast United States. Rusken Packaging has spread its wings across 19 facilities in 10 states and offers everything from standardized boxes to entirely custom printing, design, and packaging solutions. There’s a pretty good chance that if you live in the Southeast and purchased some sort of boxed product, that box came from Rusken.

Running the family empire has afforded Rusk a pretty heavy wallet, which has allowed him to follow his dreams.

A couple of days ago, Hagerty published its latest episode of Barn Find Hunter (embedded above), which opens with this line: “259 Chevys, 109 Fords, 105 Cadillacs, 96 Pontiacs, 55 Mopars, 48 Lincolns, 35 Buicks, 24 Oldsmobiles, and 12 Volkswagen Beetles.” The show’s host, Tom Cotter, joined Greg Rusk on a walkthrough of only a fraction of Rusk’s collection, and got the scoop as to how in the world one man even ends up with over a thousand cars.

Rusk says that his collecting journey started 26 or 28 years ago. At first, he just wanted to collect a Cadillac from every year of the company’s history. He had this idea of possibly opening a museum, and spent his weekends in the early Internet era by going out, looking at cars, and bringing them home.

Rusk explains that, when he was younger, his friends were all into muscle cars. However, he just loved the elegance and ride of a Cadillac. So, old Cadillacs became his dream cars.

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Hagerty

It wasn’t long before Rusk’s interests in cars branched out from Cadillacs. Soon enough, he began collecting Chevrolet Chevelles, Pontiac Firebird Trans Ams, Chevrolet Corvettes, and basically everything else. Rusk even has at least one Nash Metropolitan and a Mazda RX-7 with an LS swap.

In talking to Cotter, Rusk says that what would happen was that he’d get into collecting spells and just amass tons of cars. Apparently, Rusk would drive these cars for a weekend or two and then just stash them away in one of his many buildings or outside on his properties. So, a lot of the cars in this auction were last driven a decade or longer ago for just a single weekend.

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Hagerty

The Hagerty crew estimates that there are between 800 to 1,300 cars here, but the true number is unknown. Rusk apparently has a paper-based inventory of the cars that’s more than an inch thick, but he doesn’t even know how many cars he has or how many buildings they’re all stored in. Rusk also doesn’t remember what the first car he collected was, but he says that his favorite is a 1959 Cadillac convertible.

As for how he chooses these cars? He just likes it when a car is cool or unique. He doesn’t care if the car is numbers-matching or even if it’s in good condition. If it were a neat car, he wanted it.

Doing Some Good

I think the really cool part of Rusk’s story is just how he collected these cars. Apparently, word started getting around that Rusk likes cars, and soon enough, members of the community and employees of Rusken Packaging started reaching out. These people often say that they want to sell their car to buy a house, or need to sell their car to pay for a medical bill.

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Hagerty

Instead of bartering these people down, like people on Facebook would, Rusk would do the exact opposite. He’d ask the person how much money they actually wanted, and that’s the price he paid for the car. Rusk estimates that about half of his collection came from surrounding communities in Alabama. Hagerty says that Rusk “would regularly pay overly generous fees to acquire an interesting vehicle.” That suggests he’s almost certainly paid way more for these cars than they were even worth.

This is why Hagerty calls this auction the Generous Collection. Basically, Rusk used his love for cars to do some good in Alabama.

The Generous Collection

Alright, so you know Rusk’s story and why the man somehow ended up with a thousand-plus cars. What goodies are in this auction?

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Hagerty

Before I continue, I will reiterate a point I said earlier. Rusk’s only standard for collecting a car was that it was unique and cool, or that someone in need was selling it. He didn’t really care about its history, its condition, or modifications. Lots of his cars are not minty, and many of them have tons of miles. Many of them really are like the kinds of cars that you’ll find on Facebook.

I dig that, because that should mean that regular people should be able to afford the cars in this auction. But it also means that you should look past the pretty paint to make sure there aren’t any issues that would be a dealbreaker for you.

The first car that caught my eye was this 1992 Cadillac Sedan DeVille Custom Funeral Flower Car.

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Hagerty

I love flower cars. These cars tend to be luxury vehicles converted into a giant platform to carry flowers or a platform to carry a casket on a bed of flowers. They add style and dignity to a funeral procession, but as cars, they’re just plain cool. I mean, this thing is basically a Sedan DeVille pickup truck!

The other vehicle that immediately got my attention was this 1967 King Midget Model III. This car is being sold as a project because the auction team was not able to get it started.

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Hagerty

Now, I’m just going to rapid-fire off some of the awesome vehicles from the auction:

1997 Chevrolet Camaro Z28 30th Anniversary Coupe

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Hagerty

1953 Jaguar XK120 Roadster

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Hagerty

1999 Chevrolet S-10 Xtreme 5-Speed

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Hagerty

LS1-Powered 1989 Mazda RX-7 Turbo II 6-Speed

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Hagerty

1981 AMC Spirit GT Liftback 4.2L

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Hagerty

1987 Alfa Romeo Spider Quadrifoglio

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Hagerty

2002 Chevrolet Monte Carlo SS Intimidator

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Hagerty

1995 Toyota Celica ST Coupe

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Hagerty

1949 Cadillac Series 62

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Hagerty

1973 Cadillac Eldorado Convertible

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Hagerty

1967 Oldsmobile Toronado

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Hagerty

1986 Chevrolet C10 Silverado

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Hagerty

I think what’s really awesome is that, sure, my highlights here are some interesting cars, but there are also lots of just regular, everyday cars in this auction. There’s a 2001 Audi TT in the auction with 239,000 miles and an underbody of three different colors. There’s also a 2007 Mitsubishi Eclipse, a 2011 GMC Yukon XL Denali, a 2002 Ford F-150 Lariat, and some other cars that some folks might consider to be “regular traffic.” That’s great!

This is why I’m saying that this auction has something for everyone. A little bit of everything is in here, from cheap project cars and high-mileage daily drivers to high-dollar Mustangs and Porsches. Also, stay tuned for future auctions, as this is only a fraction of Rusk’s collection.

If you’re interested in checking out the auction, head on over to Hagerty’s the Generous Collection. As I said before, most of these cars have between 11 and 13 days left in their auctions, so you have plenty of time to explain things to your significant other.

As for Greg Rusk, he tells Hagerty that this is the end of his obsession. He’s spent nearly 30 years amassing what could be America’s largest car collection, but now, he wants to see these cars go and have fun with other people. It looks like quite a lot of folks are about to get that chance.

What looks interesting to you? Let us know your favorite find in the comments.

[Ed Note: Hagerty Marketplace reached out to see if we’d be interested in partnering on a couple of posts to support this collection. Of course, we said that we’d love to. Look at these great cars! FYI: If you click on the links above to view this collection and, especially, if you register to bid, they’ll know you came via The Autopian. – MH]

The post A Cardboard Magnate Spent Decades Overpaying For Cars To Help People In Need, Now He’s Selling All 1,300 Of Them appeared first on The Autopian.

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LeMadChef
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Fast Wheel Drive

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RWD car enthusiasts often malign FWD cars by calling them “wrong wheel drive.” On paper, they’re right. FWD cars have about 60-65% of their weight on their front axels. This is bad for acceleration and braking, where more rear is more better (mostly). And for optimum corner speeds, 50/50 is best. That said, in my sim racing experiments, FWD is faster for all but the most experienced drivers. If you’re reading this blog, odds are you are faster driving FWD than RWD (given equivalent cars). Bullshit, you might be saying. If FWD had any merit, manufacturers like Porsche, McLaren, BWM, etc. would make FWD sportscars. They don’t. Ergo, FWD sucks.

Let me tell you about James Rauck. He races a 1999 Civic with a turbo K-swap. And he is shitting all over everyone in various time attack events.

Let’s take a look at the most recent 2025 SCCA Nationals at Pittrace. James drives in the Unlimited 2 class. Times shown are the sum of 2 runs for all drivers whose times are under 4:00. I have highlighted the 3 FWD times.

  1. 3:27.412, James Rauck Honda Civic, Unlimited 2
  2. 3:33.155, Adam Slowinski, 2024 BMW M4, Unlimited 1
  3. 3:34.136, Ryan Mathews, 2002 Chevy Corvette, Max 1
  4. 3:34.598, Andrew DeKoning, 2021 Tesla S, Max 1
  5. 3:39.998, David Marcus, 2022 Porsche 911, Max 1
  6. 3:42.926, Robert Wilmoth, 2018 Audi RS3, Max 2
  7. 3:43.313, Andy Hollis, 2018 McLaren 720S, Unlimited 1
  8. 3:44.980, Mark Sarcevicz, 2003 Chevy Corvette, Max 2
  9. 3:45.025, Dallas Reed, 2024 Chevy Corvette, Max 2
  10. 3:45.981, Jacob Glover, 2008 Chevy Corvette, Sport 1
  11. 3:46.229, Sam Whitney, 2022 Ford Mustang, Max 1
  12. 3:46.518, Justin Peachey, 2007 Chevy Corvette, Max 1
  13. 3:46.408, Ryan Harness, 2020 Ford Mustang, Max 3
  14. 3:46.723, Michael Kubiak, 2003 Chevy Corvette, Max 2
  15. 3:46.997, Brian Smith, 2018 Ford Mustang, Sport 2
  16. 3:47.094, Timothy Lampke, 2021 Toyota Supra, Max 1
  17. 3:47.504, Laura Marcus, 2022 Porsche 911, Max 1
  18. 3:48.307, Ryan Smigelski, 1996 Mazda Miata, Max 2
  19. 3:49.087, Jacob Besemer, 2017 Chevy Camaro, Max 3
  20. 3:49.223, Anthony Leclerc, 2023 Chevy Corvette, Max 1
  21. 3:49.530, Dan Ireland, 2017 Chevy Corvette, Sport 1
  22. 3:49.812, Tom Harness, 2022 Ford Mustang, Max 1
  23. 3:49.994, Tim Mason, 2019 Ford Mustang, Sport 2
  24. 3:50.189, Brendan O’Donnell, 2003 Chevy Corvette, Max 2
  25. 3:50.353, Chase Rivera, 1995 Toyota MR-2, Max 4
  26. 3:50.428 Michael DiGiorgio, 2004 Chevy Corvette, Sport 2
  27. 3:50.492, Justin Vandergriff, 1989 Mazda RX-7, Max 2
  28. 3:50.787, Aaron Buckley, 2024 Chevy Corvette, Sport 2
  29. 3:51.485, Patrick Harvey, 2006 Mazda MX-5, Max 5
  30. 3:51.578, Zachary Tardivo, 2001 Mazda Miata, Max 2
  31. 3:51.580, Tim White, 2026 Toyota Supra
  32. 3:51.626, Kanit Kuevibulvanich, 2020 Chevy Corvette, Sport 1
  33. 3:51.830, Heyward Wagner, 2004 Mazda RX-8, Max 2
  34. 3:51.974, Jeff Tucker, Chevy Camaro, Sport 1
  35. 3:52.407, Ryan Field, 2004 Mazda RX-8, Max 4
  36. 3:52.662, John Laughlin, 2024 Honda Civic, Max 4
  37. 3:52.835, Robert Smithson, 2017 Chevy Camaro, Max 1
  38. 3:53.864, Foster Johnson, 2003 Honda S2000, Max 5
  39. 3:53.970, Manfred Wodall, Chevy Camaro, Sport 1
  40. 3:54.080 Tyler Miller, 2003 Chevy Corvette, Max 1
  41. 3:54.200, Phillip Jue, 2003 Nissan 350Z, Max 2
  42. 3:54.388, Matt Hugenschmidt, 2006 BMW M3, Tuner 2
  43. 3:54.392, Lyle Zyra, 2022 Toyota GR86, Max 5
  44. 3:54.454, Sam Strano, 2021 Ford Mustang, Sport 2
  45. 3:54.540, Daniel Lee, 2024 Hyundai Elantra, Sport 3
  46. 3:54.609, Ancel Henry, 2007 Ford Mustang, Max 3
  47. 3:55.626, Seiya Kawashima, 2022 Chevy Corvette, Sport 1
  48. 3:56.201, Patrick LaMontagne, 2017 Chevy Camaro, Max 3
  49. 3:56.249, Andrew Lumsford, 2023 Toyota GR86, Max 5
  50. 3:56.397, Noah Feldstein, 2005 Mazda MX-5, Max 2
  51. 3:56.538, Bryan McCrea, 2013 Scion FR-S, Max 5
  52. 3:57.213, Benjamin Peluso, 2019 Chevy Camaro, Max 1
  53. 3:57.342, John Li, 2021 Ford Mustang, Sport 2
  54. 3:58.914, Derek Secord, 2007 S2000, Tuner 3
  55. 3:58.995, Gene Kern, 2018 Chevy Corvette, Sport 1
  56. 3:58.960, Dennis Barrett, 2002 BMW M3, Tuner 2
  57. 3:59.074, Craig Krzwicki, 2013 Subaru BRZ, Max 5
  58. 3:59.754, Jonathan Crane, 2022 Toyota GR86, Sport 4

Let that sink in. The fastest car in the event is nearly 3 seconds per lap faster than P2 and it’s FWD. There are some really good cars here. 7th fastest is Andy Hollis in a McLaren 720S. That’s a $300,000 car driven by a well-respected driver. He’s giving up 8 seconds per lap to a modified grocery-getter. They are both in the Unlimited class, so it’s not like the McLaren is shackled by rules. “This is the shitty SCCA time trials” you may say. But Rauck is ridiculously fast everywhere he goes. He holds the track record for production cars at the National Corvette Museum for fucks sake. If you’re Chevy, that’s got to hurt just a little.

If FWD is so fast, how come there are so few FWD sportscars? Marketing? Historical bias? Of course FWD and RWD feel different, but most drivers, even the ones who frequent the track, are driving so far under the limit that their perception of vehicle dynamics isn’t worth their last bowel movement. Driving a FWD vehicle at the limit is just as rewarding as RWD. Say it with me: FWD FTW.



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LeMadChef
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Time to bring Hot Hatches back!
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Antarctica is starting to look a lot like Greenland—and that isn’t good

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As recently as the 1990s, when the Greenland Ice Sheet and the rest of the Arctic region were measurably thawing under the climatic blowtorch of human-caused global warming, most of Antarctica’s vast ice cap still seemed securely frozen.

But not anymore. Physics is physics. As the planet heats up, more ice will melt at both poles, and recent research shows that Antarctica’s ice caps, glaciers, and floating ice shelves, as well as its sea ice, are just as vulnerable to warming as the Arctic.

Both satellite data and field observations in Antarctica reveal alarming signs of a Greenland-like meltdown, with increased surface melting of the ice fields, faster-moving glaciers, and dwindling sea ice. Some scientists are sounding the alarm, warning that the rapid “Greenlandification” of Antarctica will have serious consequences, including an accelerated rise in sea levels and significant shifts in rainfall and drought patterns.

The Antarctic ice sheet covers about 5.4 million square miles, an area larger than Europe. On average, it is more than 1 mile thick and holds 61 percent of all the fresh water on Earth, enough to raise the global average sea level by about 190 feet if it all melts. The smaller, western portion of the ice sheet is especially vulnerable, with enough ice to raise sea level more than 10 feet.

Thirty years ago, undergraduate students were told that the Antarctic ice sheets were going to be stable and that they weren’t going to melt much, said Ruth Mottram, an ice researcher with the Danish Meteorological Institute and lead author of a new paper in Nature Geoscience that examined the accelerating ice melt and other similarities between changes in northern and southern polar regions.

“We thought it was just going to take ages for any kind of climate impacts to be seen in Antarctica. And that’s really not true,” said Mottram, adding that some of the earliest warnings came from scientists who saw collapsing ice shelves, retreating glaciers, and increased surface melting in satellite data.

One of the early warning signs was the rapid collapse of an ice shelf along the narrow Antarctic Peninsula, which extends northward toward the tip of South America, said Helen Amanda Fricker, a geophysics professor with the Scripps Institute of Oceanography Polar Center at the University of California, San Diego.

Chunks of sea ice on the shore Stranded remnants of sea ice along the Antarctic Peninsula are a reminder that much of the ice on the frozen continent around the South Pole is just as vulnerable to global warming as Arctic ice, where a long-term meltdown is well underway. Credit: Bob Berwyn/Inside Climate News

After a string of record-warm summers riddled the floating Rhode Island-sized slab of ice with cracks and meltwater ponds, it crumbled almost overnight. The thick, ancient ice dam was gone, and the seven major outlet glaciers behind it accelerated toward the ocean, raising sea levels as their ice melted.

“The Larsen B ice shelf collapse in 2002 was a staggering event in our community,” said Fricker, who was not an author of the new paper. “We just couldn’t believe the pace at which it happened, within six weeks. Basically, the ice shelves are there and then, boom, boom, boom, a series of melt streams and melt ponds. And then the whole thing collapsed, smattered into smithereens.”

Glaciologists never thought that events would happen that quickly in Antarctica, she said.

Same physics, same changes

Fricker said glaciologists thought of changes in Antarctica on millennial timescales, but the ice shelf collapse showed that extreme warming can lead to much more rapid change.

Current research focuses on the edges of Antarctica, where floating sea ice and relatively narrow outlet glaciers slow the flow of the ice cap toward the sea. She described the Antarctic Ice Sheet as a giant ice reservoir contained by a series of dams.

“If humans had built those containment structures,” she said, “we would think that they weren’t very adequate. We are relying on those dams to hold back all of that ice, but the dams are weakening all around Antarctica and releasing more ice into the ocean.”

Satellite view of ice cap coverage A comparison of the average concentration of Antarctic sea ice. Credit: NASA Earth Observatory

Credit: NASA Earth Observatory

The amount of ice that’s entered the ocean has increased fourfold since the 1990s, and she said, “We’re on the cusp of it becoming a really big number… because at some point, there’s no stopping it anymore.”

The Antarctic Ice Sheet is often divided into three sectors: the East Antarctic Ice Sheet, the largest and thickest; the West Antarctic Ice Sheet; and the Antarctic Peninsula, which is deemed the most vulnerable to thawing and melting.

Mottram, the new paper’s lead author, said a 2022 heatwave that penetrated to the coldest interior part of the East Antarctic Ice Sheet may be another sign that the continent is not as isolated from the rest of the global climate system as once thought. The extraordinary 2022 heatwave was driven by an atmospheric river, or a concentrated stream of moisture-laden air. Ongoing research “shows that there’s been an increase in the number of atmospheric rivers and an increase in their intensity,” she said.

Antarctica is also encircled by a powerful circumpolar ocean current that has prevented the Southern Ocean from warming as quickly as other ocean regions. But recent climate models and observations show the buffer is breaking down and that relatively warmer waters are starting to reach the base of the ice shelves, she said.

New maps detailing winds in the region show that “swirls of air from higher latitudes are dragging in all the time, so it’s not nearly as isolated as we were always told when we were students,” she said.

Ice researcher Eric Rignot, an Earth system science professor at the University of California, Irvine, who did not contribute to the new paper, said via email that recent research on Antarctica’s floating ice shelves emphasizes the importance of how the oceans and ice interact, a process that wasn’t studied very closely in early Greenland research. And Greenland shows what will happen to Antarctic glaciers in a warmer climate with more surface melt and more intense ice-ocean interactions, he added.

“We learn from both but stating that one is becoming the other is an oversimplification,” he said. “There is no new physics in Greenland that does not apply to Antarctica and vice versa.”

Rignot said the analogy between the two regions also partly breaks down because Greenland is warming up at two to three times the global average, “which has triggered a slowing of the jet stream,” with bigger wobbles and “weird weather patterns” in the Northern Hemisphere.

Antarctica is warming slightly less than the global average rate, according to a 2025 study, and the Southern Hemisphere jet stream is strengthening and tightening toward the South Pole, “behaving completely opposite,” he said.

Mottram said her new paper aims to help people understand that Antarctica is not as remote or isolated as often portrayed, and that what happens there will affect the rest of the global climate system.

“It’s not just this place far away that nobody goes to and nobody understands,” she said. “We actually understand quite a lot of what’s going on there. And so I also hope that it drives more urgency to decarbonize, because it’s very clear that the only way we’re going to get out of this problem is bringing our greenhouse gases down as much as possible, as soon as possible.”

This story originally appeared on Inside Climate News.

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