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GM diesel pickups first to undergo extra EPA, CARB testing

The effects of Volkswagen's long-running diesel emissions evasion are starting to spill over to other automakers, but General Motors is taking things in stride. The 2.8-liter, four-cylinder Duramax in the 2016 Chevrolet Colorado and GMC Canyon is the first engine to get extra scrutiny by the Environmental Protection Agency and the California Air Resources Board, Automotive News reports. Rather than just the usual in-lab test, it's also being checked on the road. However, the extra evaluation shouldn't have any impact on when the trucks with his mill hit dealers later this fall. "We're in our final stages of the EPA certification, and our launch is on track," Chevy spokesperson Otie McKinley tells Autoblog. The four-cylinder diesel in the trucks makes 181 horsepower and 369 pound-feet of torque, and the automaker is touting low NOx production. In the announcement for the Colorado's specs, the company calls it "the cleanest diesel truck engine ever produced by General Motors." The tech includes exhaust gas recirculation to lower combustion temperatures and improve emissions. There's also a urea tank like on the bigger diesels for full-size trucks, and it gets refilled in time with oil changes. An indication on the instrument panel lets drivers know when that's needed, too. Even with the more demanding testing, the company doesn't seem too worried about the four-cylinder passing. "Part of our development process is on-road and off-road [laboratory] testing," Scott Yackley, Chevy Trucks assistant chief engineer, said to Automotive News. In the wake of the VW scandal, the EPA has pledged more rigorous testing. Before, on-road emissions evaluations were largely limited to heavy-duty vehicles, but the agency has decided to apply the checks more often to other models. There's also now greater cooperation with Canadian authorities.

The 2017 GMC Yukon XL Denali: Not just for the fertile set

I have a sis whom I've nicknamed "The Vickster." She is a beautiful Amazon, 6'1 on a good day and is the mom to a singleton. So why would my sis need to own a GMC Yukon XL Denali when she doesn't have a brood? Well to this I say, is there a written rule somewhere that states behemoth SUV's must be solely purchased by, you know, school-run moms? I think not! Even though the 2017 GMC Yukon XL Denali is tanker-sized and can swallow up to nine passengers, it has road presence and supreme luxury to boot which is a real draw for not just the fertile set. The Yukon XL Denali is an in-your-face kind of vehicle, and it was all in mine. The monolith has a presence, there's no denying, and even though it is big from every angle, it is far from odious. The stately looking ride has nicely defined slabs of metal, boxy proportions that make you look as it glides down the highway. Giving the Yukon XL my front-to-back once over, I liked its imposing mesh grille, nicely placed chrome accents and badges, riveting upsized wheels, and attractive high-intensity discharge (HID) headlamps and LED rear tail lamps. Once I settled into the cavernous and swanky realm of leather and mellow accent lighting that makes up the Yukon XL's interior, I then realized why "The Vickster" opted for this vehicle. The SUV's interior design is not overdone, no excessive bling to the point of blindness! Tasteful appointments on the Yukon XL include soft-touch leathers, aluminum trim, wood inlays, La-Z-Boy comfy seating in the first two rows (2nd-row power-release fold-and-tumble bucket seats); and thankfully, the non-gizmos overkill command center has large and ergonomically comfy controls. Space for a leggy crew is more than ample in the first and second rows. The SUV's available power folding, third-row fold-flat seats, however, are not exactly cut out for those who have gone past middle school as the seating is less bolstered and a little too close to the floor. Loved the wide and cushy center console that is not only spacious enough for hanging folders or a laptop but most importantly, it's elbow-friendly! Technology on the Yukon XL did not disappoint—particularly with the available built-in 4G Wi-Fi Hotspot for up to seven devices that kept me connected wherever I roamed.

GM able to add diesel to half-ton pickups if market demands it

A few years ago, the trend in half-ton pickup trucks was ultra-luxurious trims, often with the words "limited" or "platinum" tacked on after the model name. That was well and good, but we like this latest fad a lot more - diesel engines. First, Ram came to bat with a 3.0-liter, V6 turbodiesel for the 1500, then Nissan announced that the next-generation Titan would be getting an eight-cylinder Cummins diesel.
Now, word is coming in from AutoGuide that General Motors can, if it so chooses, drop a diesel engine into its light-duty trucks. The plot thickens, though, as it turns out that said diesel would be the same one Ram is using for its truck. According to AG, that engine comes from VM Motori, which GM owns a sizable chunk of. Therefore, GM can snag the 3.0-liter, V6 diesel for its trucks just as easily, if not more easily, than Ram.
If it's so easy for the Detroit-based manufacturer to access the engines, why not offer the a diesel-powered Sierra and Silverado from the start, then? According to GM spokesman Tom Wilkinson, The General doesn't seem so confident in a diesel pickup outside of its HD offerings. According to Wilkinson, the cost-benefit ratio doesn't line up for customers, thanks to both the impact on the truck's sticker price and the higher price of diesel, in general (the national average for a gallon of diesel is 43 cents more than a gallon of 87-octane unleaded).