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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.

GM marks 500 million vehicles

General Motors is marking a major global milestone, as 500 million vehicles have rolled off its assembly lines since the company's founding in 1908. To mark the occasion, the automaker is continuing to invest in production and offering a one-time discount to some customers. GM North America boss Alan Batey used the festivities to announce the Fairfax Assembly factory in Kansas as one of the sites earmarked for the company's $5.4 billion in upcoming investments. The plant will get $174 million of that money for new equipment and technology to build the 2016 Chevrolet Malibu. Among the upgrades will be a shake-and-rattle booth that will simulate road conditions to find squeaks. To commemorate both the production milestone and the Fairfax plant, Batey and company CEO Mary Barra also gave away a 2016 Malibu to a wounded Iraqi war veteran, and the two execs announced that in the third week in May all GM employees can share a one-time customer appreciation discount with friends to help get them into the automaker's products. Barra also gave a speech to the workers there about some of the other milestone's in the company's history, which you can read below. Innovation on the Line: GM Manufacturing Milestones Many of General Motors' most important innovations have occurred behind the scenes, in its manufacturing facilities. Concepts such as changeover, flexible assembly, automation, computer simulation, machine vision and robotics were developed at GM. Over the decades these innovations have helped enable improvements in vehicle quality, efficiency and competitiveness. 1901: Ransom Olds' famous Curved Dash Oldsmobile, designed with simplicity, reliability and value in mind, was the first American car built in a factory designed specifically for automobiles and in standardized volume production. GM acquired Oldsmobile in 1908. 1908: Cadillac wins the Dewar Trophy, Europe's most prestigious award for precision and excellence in manufacturing, by demonstrating the auto industry's highest standards for precision and interchangeability of parts by disassembling three Cadillacs and mixing the parts randomly before reassembling and driving them before a contingent of judges. 1922: GM hires William Knudsen to lead Chevrolet's turnaround. Knudsen implements flexible mass production, which helps Chevrolet incorporate annual styling changes and take market share from Ford.

Deep discounts — $12K, $13K, $16K — are fueling a pickup price war

Heavy discounts of up to $16,000 per vehicle are fueling a "truck war" among full-size pickups sold in the United States by the Detroit Three, a Reuters analysis shows. Strong U.S. sales this year of the highly profitable big trucks have helped offset lagging passenger car sales. But it is not clear how much of the truck demand is linked directly to ample factory incentives and dealer discounts, or how far sales might decline without those subsidies. A Reuters survey of Ford, General Motors Co's Chevrolet and Fiat Chrysler Automobiles's Ram truck dealers across the United States indicates stores are offering deep discounts the country's bestselling full-size pickup trucks. "The walls are not crashing down on full-size trucks," said Sam Fiorani, vice president of global vehicle forecasting at AutoForecast Solutions in Chester Springs, Pennsylvania. Detroit-based automakers want to keep cranking out their high-margin trucks, he added, and "giving up a little of the profit is the cheapest way to do it." Stores are offering discounts of up to $12,000 on the 2018 Ford F-150, which remains the best-selling vehicle in the country, recording more than 80,000 sales in May. Discounts run up to $13,000 on the 2018 Chevrolet Silverado and as high as $16,000 on the Ram 1500. Average transaction prices for full-size pick-ups range from around $42,000 to $45,000, industry analysts and automakers say. All three companies are spending furiously - GM and Fiat Chrysler to help sell off carryover 2018 trucks to prepare for redesigned 2019 models, and Ford to sustain its long-held sales crown. A supplier fire that temporarily shut down production of the F-150 last month "changed the game," said Jeff Schuster, senior vice president of forecasting at LMC Automotive in Troy, Michigan said. The supply halt nudged Ford's crosstown rivals "to ratchet up incentives on the current models to go after weakness at Ford," he said. Deals advertised on the companies' official websites range from rebates and low-interest loans to ultra-cheap lease rates, but they are not telling the whole story. Ford, for instance, advertises a $2,000 rebate and a $500 financing credit on sales of certain F-150 models. But James Collins Ford in Louisville, Kentucky, is offering discounts of up to $12,215 on the 2018 F-150 XLT SuperCrew 4x4. The price cuts are even steeper at a number of GM and Fiat Chrysler dealers. Quirk Chevrolet is selling the 2018 Silverado 1500 Double Cab at $13,000 off sticker.