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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.

Before Chevrolet's Redline, there was the Saturn Red Line

While Chevy rolls out Redline special editions across more of the lineup at this year's Chicago Auto Show, we've been eating some 'member berries and started thinking about the last time GM used the term. Back in 2004, Saturn rolled out Red Line (two words) editions of the Ion and Vue. The lineup was joined by the Sky Red Line in 2007, and the second-generation Vue kept the tradition going in 2008. This was in the heady days of the mid-2000s, before the financial crisis and GM's bankruptcy reorganization that saw the end of Saturn. The press release headline for the 2008 Sky is now cringe-worthy: "Hot-selling Sky helps drive Saturn product renaissance." Performance lineups were the hot new thing, as automakers attempted to cash in on the tuner trend popularized by The Fast and the Furious. Chevy had SS models, Pontiac had GXP, and Saturn had Red Line. Across the Detroit Metro area, Dodge had a slew of SRT models, and Ford's Special Vehicle Team brought us the SVT Lightning pickup, the SVT Focus, and a smattering of hopped-up Mustangs. The performance cred of Red Line models varied from car to car. The Ion Red Line shared the same engine as the original Chevy Cobalt SS, a 205-horsepower supercharged 2.0-liter four-cylinder, 65 hp more than stock. Car and Driver tested one with a 0-to-60-mph time of 6.1 seconds and said the Ion "tears down the wall that has separated enthusiasts from the Saturn brand for so long." The Vue Red Line, meanwhile, came with the same optional Honda-sourced 3.5-liter V6 you could get in the regular Vue, and added a stiffer, lower suspension, bigger wheels with more aggressive rubber, and recalibrated steering assist. When the Vue was redesigned for the 2008 model year, the Vue Red Line was a similar proposition. The engine was now from GM, and up 7 horsepower to 257, but you could get it in both Red Line and XE trim. Aside from the tire and suspension upgrades, Red Line models now came with a unique front fascia and rear exhaust cutouts. The most exciting Red Line, of course, was the high-performance version of the Sky roadster, which shared underpinnings with its Pontiac Solstice twin. This model came with GM's hot 2.0-liter Ecotec Turbo, good for 260 horsepower. The extra power was crucial in covering up the Sky's unfortunate manual gearbox ratios, which left the non-turbo model aching for torque in lower gears. As we all know, Saturn was taken by the grim reaper in 2009 after an attempt to sell the brand to the Penske Group.

GM's MPG overstatement could affect 2 million vehicles

Late last week, GM admitted that three of its large SUVs fuel economy window stickers did not match their actual efficiency ratings, and so the vehicles couldn't be sold. The stickers on the 2016 Chevy Traverse, GMC Acadia, and Buick Enclave said their ratings were one to two miles per gallon better than they should have been. Officially, the number of affected vehicles sits at about 60,000. But Consumer Reports makes a good point: what's up with all of the previous model year SUVs that are basically the same vehicle? To wit: the 2016 model year vehicles are not substantially different than the 2015 or the 2014, or even going all the way back to 2007. On the EPA's fuel economy website, all of these older models will "have better stated fuel economy numbers than the new vehicles in GM's dealerships," Consumer Reports noted. CR's best point, and the one that makes the 60,000 number potentially grow to 2 million if all of the vehicles built on this platform are affected, is that "[i]t seems unlikely that the company would change the powertrain on these carryover models so late in their model cycles in a way that would cause a dramatic, negative impact on fuel economy." GM says that earlier model year SUVs are not affected and the EPA did not respond to CR's question about the potential for more discrepancies. We've seen automakers reverse course before, so if GM has to come out with a mea culpa soon, don't be surprised. GM is rushing corrected stickers to dealers so that the SUVs can be sold again, but a fix for the already-sold vehicles could be trickier to solve. Related Video: Related Gallery 2013 GMC Acadia View 16 Photos News Source: Consumer Reports Government/Legal Green Buick Chevrolet GMC Fuel Efficiency mpg gmc acadia chevy traverse