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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.

Battery Show 2015: Genovation GXE Corvette EV designed for the 'Ring

The Genovation GXE all-electric Corvette has broken cover. At the Battery Show 2015 in Novi, MI, this week, the converted C6 Z06 Corvette that we first heard about back in August was tucked into a booth along the back wall. Don't let the demure location fool you. This is a muscle-y electric vehicle, ready to roar into the limited-run, expensive EV game. The Genovation GXE Corvette can go from 0-60 miles per hour in three seconds and has a top speed of 200 mph. The powertrain was designed and built in the US, and offers over 700 horsepower and over 600 pound-feet or torque. With a near 50/50 weight distribution, this is "a real driver's car," Genovation CEO Andrew Saul told AutoblogGreen. Saul said that the GXE was designed to do two hard laps at Nurburgring thanks to a 44-kWh battery pack uses the same sort of cylindrical 18650 cells that you can find in a Tesla. That translates to about 40-50 miles of fast, on-road driving, Saul said, or 150 miles on the New York City test cycle. That particular test, "simulates low speed urban driving with frequent stops," according to DieselNet. The car also has a 6-kW charger and a six-speed manual transmission and the adjustable regenerative braking levels can be controlled by paddles on the steering wheel. Of course, none of those performance figures have been proven yet because the GXE hasn't had a chance to hit the road. Saul said that it will take another three-to-four weeks to finish the build and then, finally, there will be a few weeks of road testing. This will include a quarter-mile run on a track as well as a trip to Nevada to do a several-mile top speed test. If all of that sounds like something you're interested in, then get ready to open your wallet wide and wait. Saul said that buying one will set you back $330,000 (just $290,000 if you bring your own C6 Z06). Genovation also won't be making all that many. Saul said he expects to put the GXE into limited production of under 200 units, starting off at maybe five or 10 a year. Featured Gallery Battery Show 2015: Genovation GXE All-Electric Corvette View 14 Photos Green Chevrolet AutoblogGreen Exclusive Electric exclusive corvette genovation

Chevy, Kid Rock in Confederate flag row with civil rights group

Two of Detroit's own are ensnared in controversy today. In an interview with Fox News' Megyn Kelly, mulleted musician Kid Rock told those protesting the Confederate Battle Flag to "kiss my ass." Now, Chevrolet, which is sponsoring Rock's summer concert tour, is under fire for its support. "We are committed to our sponsorship of Kid Rock's summer tour and are confident that he will provide his fans, many of whom are proud Chevrolet owners, with a spectacular concert experience that celebrates American Freedom," a Chevy spokesperson told The Detroit Free Press last week. The company also uses the Kid Rock anthem Born Free in its pickup truck advertising. The company's position is not sitting well with the Detroit chapter of the National Action Network, though, which has called on GM to pull its support for the embattled artist. "It's obvious to us that, by supporting [Rock], while he's making inflammatory statements, General Motors becomes an accomplice if they allow him their support to stand behind his statements," the Rev. Charles Williams II, NAN's Detroit chapter director, told the Freep. As controversial as Rock's comments are, it's not entirely clear when the last time he actually waved that flag was. The Freep reports that several concertgoers don't recall seeing the flag during his most recent tour, or even over the last few years of concerts. In a 2002 interview with the paper, Rock, real name Robert Ritchie, said that the flag had been used as a symbol of southern rock and a rebel spirit, saying: "It's not about hatred or being a racist. I like Southern rock music, and a lot of people died under that flag for beliefs they had, right or wrong. But it stands for rebel, and my love of Southern rock." Related Video: