Gmc 2500 Crew Cab Slt 4x4 Duramax Diesel, Loaded. Level Kit, After Market Wheels on 2040-cars

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GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

MotorWeek looks back at 1995 Chevy Tahoe, GMC Yukon

MotorWeek's Retro Review series gives us a nostalgic look back at some of the best sports cars and luxury sedans available in the 1980s and '90s. For its latest clip, the show shifts gears to remember the 1995 Chevrolet Tahoe and GMC Yukon. Similar to the success of crossovers today, SUVs were tallying big sales and making big money for automakers in the mid-'90s. The Tahoe and Yukon filled slots in the market as steps down from the larger Suburban. These twins weren't wanting for space, though, with plenty of room to haul around a family. MotorWeek came away generally impressed too, and called the models some "of the better riding sport utilities we've ever experienced." This review comes with some jazzy, electric guitar licks to enjoy in the background.

2018 GMC Canyon Denali isn't worth the money

In the GMC lineup, Denali is the top dog. It's the trim with all the bells and whistles, and often provides an experience comparable to Cadillac. Unfortunately that's not the case in the GMC Canyon Denali we drove recently. In the Canyon's case, the Denali trim isn't worth the price premium because it isn't luxurious enough and doesn't distinguish itself from the midlevel SLT trim. While the outside maintains the Denali look with a unique chrome grille, chrome door handles, 20-inch wheels, and big Denali badges (which a guy at a car wash immediately noticed when this editor drove past), the interior and feature set don't rise to meet the borderline Cadillac image of Denali. All GMC did to spruce up the already drab, gray, plasticky interior of the Canyon was give it black leather, some real aluminum trim, some fake wood trim, and stitched soft-touch surfaces. The aluminum and leather are nice touches, but they don't look much different from the black and aluminum-look plastic in lower trim models. The fake wood also looks really fake. They're also exactly the same upgrades as what you'll find in an SLT. But the SLT offers a dark brown color scheme as an option, which would help alleviate the dinginess, and the SLT, equipped exactly like a base Denali, costs $2,690 less at $41,575. The same issue comes up with equipment. The Denali has heated seats and steering wheel, navigation, automatic climate and navigation, but so does the SLT. The big problem here is that Denali is supposed to indicate the best, most luxurious vehicle GMC has to offer, but there's not enough differentiation — or specialness, even — to separate it from a well-optioned SLT. GMC needs to give the Denali something more. It needs some real wood trim, or perhaps some interior schemes with contrasting materials you can't find in other Canyons. It should have some other special luxury features included that can't be added to lower trim GMCs such as a heads-up display, automatic windshield wipers, push-button keyless entry and starting, things like that. The real reason to buy the Canyon Denali is really to get the prestige that the Denali badge brings, rather than the specific equipment it has — the Denali name has some value, after all. But if you can look past the badge and focus on practicality, the SLT is the runaway winner, offering the exact same experience for a notably lower price.