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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.

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).

GMC Hummer EV fan's Lego build is functional and even has Crab Mode

Lego creates some pretty amazing automotive models, but the Lego hobbyist community sometimes does better. Evidence of that comes to us in this fully-functional GMC Hummer EV Lego Technic model spotted by Road & Track and created by YouTube user Alain B. And while it's a one-off for now, there is the possibility it could become a kit you could bring home. As you can see in the video, the model looks the part with a body that closely matches the real thing. It's an impressively solid body, too, something that's sometimes difficult to achieve with Technic pieces. But that's only the tip of the iceberg. It's also got electric motors and is remote controlled. It has four-wheel-steering that can emulate the Hummer's famous Crab Mode setup. The fully independent suspension can raise for more ground clearance. And on top of all of that, it's even got a fully operational MultiPro tailgate and front trunk. The design is also listed on the Lego Ideas page. This is the site where Lego builders can submit their creations, and if they get enough votes, they'll be considered by the company for becoming a real production kit. You can visit the page at this link to lend your support (it doesn't cost anything). That page also reveals some other neat details, including the fact that it's made of about 2,200 pieces. While enough votes will get the design to be considered by Lego, there are other factors that determine whether it makes production. Some of them include getting the license from General Motors, and other undisclosed reasoning. But Lego has done a number of large, technical and somewhat pricey kits with licensing from other companies. So this seems like a great one for the company. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.