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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.

GMC Hummer EV EarthCruiser upfit finally here, for going out there

The GMC Hummer EV EarthCruiser upfit can now be seen in the wide open bright light, the battery-electric overlanding rig soon available to Hummer EV pickup owners to head back into the bush for extended stays. The camper's made of carbon fiber and features EarthCruiser's hallmark pop-top roof. When closed, the camper takes the Hummer EV's 79-inch stock roof height up to 90 inches. Springing the three-layer, insulated roof to bivouac increases height to 117 inches. The upfit keeps the Hummer EV's 217-inch length, and it appears the side storage bins don't extend beyond the 87-inch width of the electric pickup's wheel arches. The driver's side exterior bin holds recovery gear, the passenger's side storage holds tanks for filtered water.  Sized to sleep two people, there's a full-sized RV bed with 35 inches of headroom under the raised top. Tall outdoorsy types are well served by the 76 inches of headroom standing in the hallway, and 80 inches at the rear entrance. Power comes from 605 watts of solar panels on the roof, energy stored in a 12-volt lithium battery array that adds up to 6 kilowatt-hours or 460 amp-hours of energy, running through a 1,500-watt inverter. EarthCruiser says the batteries will be enough to juice hungry appliances like the refrigerator/freezer combo for about a week. That means owners would need to be more careful with water than with power, there being a 13.5-gallon freshwater tank — which the sun can't refill — and a seven-gallon gray water hold. Other amenities include an induction cooktop, sink, filtered and unfiltered water taps, flat-pack toilet, indoor and outdoor showers and 12-volt water heater, 120-volt and 12-volt outlets, and lots of dimmable lighting. Liveaboards control the interior through a seven-inch touchpad. Outside, an exterior keypad manages exterior lighting and systems. No mention of an indoor heater, but there's plenty of storage in the galley drawers and cabinets, and under the bed for a portable unit.   The GMC Hummer EV EarthCruiser upfit greets the public at this weekend's Overland Expo Mountain West in Loveland, Colorado, welcoming all gawkers from August 25-27. Pricing should come later this year, before EarthCruiser begins offering the unit to owners next year. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Chevy Colorado, GMC Canyon get updated tachometers due to graphical error

After James Bearing bought a Chevrolet Colorado, he noticed a discrepancy between the truck's spec sheet and the truck's tachometer: Chevrolet said 3.6-liter V6 in the little pickup produces 305 horsepower at 6,800 rpm, but the the tachometer indicates a redline at 6,500 rpm. So either he wasn't making as much power as he was promised, or the tachometer display was incorrect. Bearing said he asked Chevy about it but got no response. Until now. A General Motors spokesman said the rev limiter is indeed set for 6,800 rpm, but the tach graphics "are slightly off" in the Colorado and the GMC Canyon, and submitted an SAE horsepower certification to back him up. If you're wondering how such a thing got past quality control... well, let's just say you're not alone. GM is going to fix "the graphics on future trucks," which makes it sound like Bearing will just have to learn to live with the indicated redline he's got. He could always pretend he's driving a sleeper, with four more ponies waiting to be unlocked in the danger zone for those who dare. Related Video: Featured Gallery 2015 Chevrolet Colorado: First Drive View 38 Photos Related Gallery 2015 GMC Canyon: Quick Spin View 27 Photos News Source: Auto Guide Auto News Chevrolet GM GMC Truck gmc canyon