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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.

New Takata problem results in recall of 414 GM vehicles

An airbag-inflator rupture discovered by Takata during testing has resulted in a new recall affecting 414 vehicles from General Motors, including 395 of them in the US. This latest campaign covers 2015 model-year examples of the Buick LaCrosse, Cadillac XTS, Chevrolet Camaro, Equinox, Malibu, and GMC Terrain. There are no reported breaks in any of these vehicles on the road, and the company estimates only one percent of them actually have the faulty parts. According to documents submitted to the National Highway Traffic Safety Administration (as a PDF), one side-airbag inflator failed a cold test at -40 Fahrenheit "releasing high pressure gas and propelling the separated components apart." The supplier told GM about the failure the next day. In these vehicles, the safety device might not only burst but the bag could inflate incorrectly, as well. GM and Takata say that a cause is not yet known, but they are "conducting an investigation." GM will begin notifying affected owners via overnight mail on Oct. 19. Dealers will replace the side airbag modules on all of the affected vehicles with new components outside of the suspect lot. All of the removed parts will also be collected for further study. Takata's faulty front airbag inflators have resulted in a serious scandal for the supplier. Initial figures indicated 34 million US vehicles are need of repair, though more recent figures have knocked that down to 23.4 million bad parts in 19.2 million automobiles. GM was already among the dozen automakers with models to fix, and some of its pickups were affected, along with the Saab 9-2X and Pontiac Vibe. GM Statement: General Motors is recalling 395 cars and crossovers in the U.S. because one of the front seat side air bags inflators may be defective. In the event of a deployment, the air bag's inflator may rupture and the air bag may not properly inflate. The rupture could cause metal fragments to strike the vehicle occupants, potentially resulting in serious injury or death. GM is unaware of any incidents involving vehicles with these components, which were part of a lot in which one inflator failed acceptance testing at the supplier. Dealers will replace the side air bag module or modules in affected vehicles. Including Canada, Mexico and exports, the total population of the recall is 414, GM estimates 1 percent of the recalled vehicles may have the defect.

2016 Chevrolet Equinox gets styling tweaks, not much else

The current Chevy Equinox debuted over five years ago, in late 2009. Since then, the midsize crossover segment has become increasingly important, with brand-new entries meeting substantially overhauled versions of existing nameplates. But the Equinox carried on, largely unchanged. And while Chevy is using its Chicago Auto Show stage to debut the freshened, 2016 Equinox, it appears there isn't a whole lot to talk about. Take a look at the updated Equinox's exterior and you're pretty much going to see all that's new for 2016. Sure, the Chevy still boasts a handsome, inoffensive design, and it's now upgraded with things like LED running lamps on top-level trims, as well as new 17- and 18-inch wheel designs, projector beam headlamps, and revised taillamp styling. Moving inside, Chevy has added a standard seven-inch color touchscreen to all models, which includes a backup camera. New-to-Equinox safety features like side cross traffic alert and side blind zone alert are also available for 2016. And really, that's about it. Powertrain options carry over from last year. On the base end, there's a 2.4-liter inline-four that's good for up to 32 miles per gallon on the highway (with front-wheel drive). Buyers can also opt for a 301-horsepower, 3.6-liter V6 that allows the Equinox to tow up to 3,500 pounds. Will this be enough to keep the Equinox fresh in its highly competitive class? In 2014, the Equinox did outsell lower-volume competitors like the Mazda CX-5 and Subaru Forester, but was bested by fresher offerings like the Ford Escape, Honda CR-V, and Toyota RAV4. Have a look at all there is to know about the 2016 Equinox in the press blast below. We'll have live images and more impressions direct from the Chicago show floor, soon. Fresh Face: Chevrolet Introduces Restyled 2016 Equinox Premium cues, new safety features enhance Chevy's record-selling compact SUV CHICAGO – Chevrolet today introduced the 2016 Equinox – a contemporized version of the popular compact SUV. Updates include new styling with premium accents, new wheel designs and new available safety features, as well as a larger color touchscreen radio and a standard rear-vision camera for entry-level models.