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Diesel details: Comparing Ram 1500 EcoDiesel, Chevy Silverado Duramax, Ford F-150 Powerstroke

With specifications for the 2019 Ford F-150 Power Stroke diesel already out, and the details on the 2020 Ram 1500 EcoDiesel and Chevy Silverado Duramax (and its GMC Sierra twin) trickling out, we felt it was a good time to start comparing the full-size trucks' light-duty diesels. Bear in mind, we've only driven one of these new diesel trucks, so we'll be sticking to numbers for now. Some numbers haven't been announced yet, either, but stay tuned, because we'll be updating this post with additional specifications as they become available. And if you want to compare any other versions of these trucks with other vehicles, be sure to check out our comparison tool. Now let's start comparing, starting with our big chart of numbers below. As we can plainly see, these trucks are quite closely matched. Each one has six cylinders, a displacement of 3.0 liters and a turbocharger to boost it. The output of each is somewhat close, too. The Ram 1500 EcoDiesel is the torque king at 480 pound-feet, 20 more than the GM trucks and 40 more than the Ford. The GM trucks win on power, though, with 277 ponies, 17 more than the Ram, and 27 more than the Ford. GM does report that you get their trucks' peak 460 pound-feet of torque from 1,500 rpm to 3,000 rpm, whereas the others only report peak torque at a particular point in the rev band, but all of these trucks should have wide, flat torque curves as you would expect from modern turbodiesels. 2020 Ram 1500 EcoDiesel View 8 Photos Engine output is only one part of the truck performance equation. We also have towing and payload capacity, as well as fuel economy. With towing, the Ram 1500 is the current leader with a maximum capacity of 12,560 pounds. That tops the Ford F-150's 11,400-pound tow rating by well over 1,000 pounds. The F-150 can carry 2,020 pounds in its bed, but we don't know yet whether that's better or worse than the Ram or the GM trucks. We also don't have numbers for the GM trucks' towing capacities. View 9 Photos As for fuel economy, the Ford F-150 manages a thoroughly impressive 22 mpg in the city and 30 on the highway with two-wheel drive. Choosing four-wheel drive drops those numbers to 20 and 25 respectively. The fuel economy numbers for the Ram, Chevy and GMC haven't been revealed yet, but for some comparison, we can look at the old Ram EcoDiesel. That truck's best fuel economy was 20 in the city and 27 on the highway with two-wheel drive.

GM follows U.S. trademark for AT4X with application in Mexico

Looks like GM is preparing to return the GMC Sierra 1500 All Terrain X to the marketplace, but with a new name. GM Authority found a trademark application filed in May this year in Mexico for the AT4X moniker. This comes three years after GM filed an application with the U.S. Patent and Trademark Office for the same alphanumeric in February 2016. When GMC introduced the all-new 2019 Sierra, it changed the previous All Terrain trim name to AT4, as seen on the Sierra AT4 we called "offroad overkill." The patent filings lend credence to the idea that the previous All Terrain X trim will soon be introduced by a Sierra 1500 AT4X model.  The erstwhile All Terrain X, introduced for the 2016 model year, took the former All Terrain further into the frame of serious-looking off-roader. On top of the Z71 suspension with a two-inch lift, Rancho monotube shocks, and a locking rear differential, the X added a sport bar for offroad lights, side steps, more dirt-friendly 18-inch wheels in 265/65 mud-terrains instead of 20-inchers on 275/65 all-terrains, a performance exhaust, and a lot more black and body-colored trim. At launch, we said it was "no Raptor threat," and even though GMC launched a 2500HD version in 2017 (pictured), it likely never worried the Ram Power Wagon. We wouldn't expect the equation to change with a possible AT4X, which is a shame, since hardcore OEM offroaders are becoming bro dozers for the mature, moneyed set.

2024 GMC Sierra 1500 AT4X makes Duramax diesel standard

Changes are afoot for the 2024 GMC Sierra 1500 lineup. The one ringing the biggest bells for the off-roading crowd is the engine swap headed to the AT4X trim. Right now, if you want an AT4X you've got Hobson's choice of engines: The 6.2-liter EcoTec V8 with 420 horsepower and 460 pound-feet of torque. Next year, the 3.0-liter Duramax turbodiesel inline-six that's standard equipment on the AT4 and Denali Ultimate trims becomes the standard engine on the AT4X. The oil-burner makes 305 hp and 495 lb-ft., sent through the same ten-speed automatic the 6.2 V8 is yoked to. GM said around 20% of buyers have checked the Duramax box when buying a Sierra 1500 since the automaker released the upgraded engine for the 2023 model year — it's also offered on the SLE, Elevation, SLT, and Denali trims. The percentage should grow thanks to the diesel's low-speed grunt being one of the best "force multipliers" when traipsing over and through particularly challenging corners of the woods. The 6.2-liter will take the exhaust note crown over the diesel after the introduction of an active exhaust system with a Sport mode exclusively for the 6.2. Assuming no more changes to engine lineups before the 2024 Sierra arrives, the SLT, AT4, Denali, Denali Ultimate, and AT4X will have access to the active exhaust option.   GM Authority says the Duramax is getting another maximal friend in 2024, too. The 2.7-liter Turbo High-Output four-cylinder makes 310 hp and 430 lb-ft and is standard equipment on the entry-level Pro trim. the SLE, and Elevation trims will be renamed "TurboMax," which sounds like an Autobot, and that's not a bad thing. GM applied to trademark the name in January. The new moniker is headed to the Chevrolet Silverado as well, and we'd bet on exterior badging to let the world know.  Elsewhere around the Sierra, there will be two new exterior colors, Downpour Metallic and Thunderstorm Gray, mixable and matchable with two new aluminum wheel designs. And between those wheels, power retractable steps will be available for the Denali, Denali Ultimate, AT4 and AT4X trims. We'll be waiting to see how the steps differ from the GMC MultiPro Power Steps available now for $1,195.  Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.