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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.

2015 Chevrolet Cruze spied on its home turf

The next Chevrolet Cruze isn't set to go into production for about another year, and we're just now seeing prototypes of the new compact running around here in the States. Not much more has been revealed since we saw the car blasting through the snow in Europe, but we can still clearly see new design elements like the larger grille, slimmer headlamps and redesigned taillamps.
Our spy photographers worked up a composite image of this Cruze prototype alongside the current model, and here, we can clearly see some big visual changes are in store for the new model. The 2015 Cruze's hood slopes downward more dramatically, the windshield is more heavily raked, and the roofline looks more fluid overall. The next-generation Cruze will ride on the new global Delta platform that will also underpin other General Motors vehicles like the Chevrolet Volt and Equinox.
As for what's under the hood, we expect the normal range of gasoline four-cylinder engines (both naturally aspirated and turbocharged), and the compact's new turbodiesel four should carry over, as well. Have a look at the full brace of spy photos in the gallery above.

CA Chevy dealer allegedly adds $50K 'market value adjustment' to 2015 Z06

It seems to happen with every eagerly anticipated new car – dealerships, recognizing that crushing demand far outstrips the initial limited supply of a new model, inflate the price via a so-called "market value adjustment." We've seen it in the past with a number of new models, and now it's happening again with one of the Detroit 3's hottest vehicles. A dealership in Roseville, CA, outside of Sacramento, has allegedly attached a staggering $49,995 market value adjustment to a 2015 Corvette Z06. We say allegedly because, despite the evidence uncovered by BoostAddict, John L. Sullivan Chevy's online inventory listing doesn't display the price premium of the Z06 in question, a (normally) $93,965 model with the top-end 3LZ trim. It's unclear if either of the dealer's other Z06s, both 3LZs, one of which is in transit, will receive similar price adjustments. Now, legally, Sullivan Chevy isn't doing anything wrong here. Dealerships are under no obligation to observe a manufacturer's suggested retail price, a point General Motors' spokesperson Ryndee Carney pointed out to Autoblog via email. "For the Corvette Z06, Chevrolet has established a Manufacturer's Suggested Retail Price we feel is right for the market. Actual transaction prices, however, are the province of the dealer," Carney said, adding that a dealer zone manager will be discussing the price hike with the dealership. While we also reached out to the dealership over both the market value adjustment and the price of the Z06 as it appears on the company's website, we've yet to hear back as of this writing. Should they reply to our inquiries, we'll be sure to update you. Until then, we'd like to hear what you think about this case. Is Sullivan Chevy simply pricing the cars as high as it thinks the market can bear, or is this a cash grab for an hotly anticipated product? Have your say in Comments.