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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.

The electric Hummer gets a new logo

GM submitted three trademark applications to government offices here and in Canada, as discovered by GM Authority. Two applications went to the U.S. Patent and Trademark Office and the Canadian Intellectual Property Office on February 4 this year, seeking to reserve the new Hummer logo, at the top in the image above. Note, the two logos aren't to scale; they're about the same size all things being equal, but we shrunk the old mark. GM sent a second application to the USPTO on February 7 requesting the brand name "Hummer" for application to "motor land vehicles, namely, automobiles, trucks and sport utility vehicles; bicycles." True, we've seen the new Hummer script stretched across the front of the coming electric pickup in a teaser clip, but the paperwork continues the process of getting the entire continent ready for the alternate universe resurrection of one of America's most notorious brands.     In 2010, gas prices were in orbit, GM committed to closing the Hummer brand, vandals were setting fire to the scattered Hummers left on dealer lots, the Chevrolet Corvette ZR1 made 638 horsepower, the eco-minded revered the Toyota Prius and the Tesla Model S was still two years away. In that year, it would have been hard to say something more bonkers than, "Hummer's coming back in ten years as an electric pickup, its top trim making 1,000 horsepower and 11,500 pound-feet of torque." But here we are. The new logo's squareness connects it to the resolute bluntness of the old mark, yet the thinner font and chopped corners both modernize the old logo and lessen its truculence. The brand appears headed the same way, with lurid specs and square-jawed looks just like old times, but having in LeBron James a more modern take on the hardcore male vibe than it once got from (unpaid) association with guys like Arnold Schwarzenegger. To be fair, old Hummer commercials always featured women in the driver's seat, or men and young boys dreaming of big adventures, or Regis Philbin chatting up models, but the marketing department couldn't — or didn't want to — outrun the lineup's reputation on the street. We'll see how the electric version and its “incredible on- and off-road capability" fare. According to the teaser site, the new Hummer's debut is still on track for May 20. If the brand manages to recreate the old H3T pickup but with an electric powertrain, it's got one buyer right here lined up already. Related Video:

Watch this GMC pickup crash through a wall into a Florida airport terminal

A man in Florida has been accused of driving his pickup truck through airport grounds and through a wall into the airport's baggage area. It is unclear whether or not the incident was on purpose or an accident, but the shocking scene was captured by numerous cameras and angles. The driver sustained serious injuries but nobody inside the airport was hurt.  The wild crash happened at the Sarasota-Bradenton International Airport at about 3 a.m. on December 19, 2019, according to the Herald-Tribune. Reportedly, the 2015 GMC Sierra was seen driving erratically on a nearby highway earlier in the night, but officers were unable to catch the driver. The truck ended up driving through a chain-link fence, down a service road, and through a wall into the airport's main terminal. As seen in the clips, the truck smashed through the wall and hit a car rental service desk, behind which two people stood. Luckily, the secured desk prevented the truck from hitting the employees, and they escaped without any injuries. The area was mostly empty due to the late hour. In addition to the damage caused to the building, the truck also hit a luggage conveyor belt. Total damages are estimated to be around $250,000. Read more about the crash on WWSB or the Herald-Tribune. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Auto News GMC Truck Videos crash airport