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Brief website update hints 2016 Chevy Volt will get 43 mpg, 106 MPGe

Customers in California can already order the 2016 Chevrolet Volt and be the first to own the new, range-extended EV in August. It appears there's now a possibility that buyers of the updated model might get slightly better economy than Chevy's initial announcement from the 2015 Detroit Auto Show in January, too. According to the eagle-eyed folks at GM-Volt.com, Chevy has been subtly tweaking the spec page for the 2016 Volt. It briefly showed the model getting 43 miles per gallon combined fuel economy and 106 mpge, rather than the originally released figures of 41 mpg and 102 mpge. Shortly afterward, the internal-combustion mileage returned to 41 mpg, but 106 mpge remained. A GM spokesperson told Hybrid Cars the changes happened by mistake. "We have not finalized numbers yet. We expect to announce in July." The economy isn't the only statistic to see an adjustment, though. The total range was reportedly briefly shown as 420 miles, and then returned to a 430-mile rating, according to Hybrid Cars. The Volt's output has also been slightly tweaked from the original figures. It's now displayed as 150 horsepower and 293 pound-feet of torque, versus the preliminary numbers of 149 hp and 294 lb-ft. These tiny changes likely have a negligible impact on real-world driving, but they suggest that Chevy's team is still working to squeeze as much as possible from the latest Volt's powertrain. If the final figures are coming in July, then the engineers still have just a few weeks to improve the ratings even more.

IIHS Crash-tests Expose American Muscle Cars' Weaknesses | Autoblog Minute

Turns out American muscle cars aren?t that strong according to IIHS crash tests. The Insurance Institute for Highway Safety put three iconic American sports cars through a range of performance crash tests. Chevrolet Dodge Ford Autoblog Minute Videos Original Video crash test camaro challenger

GM opens official investigation into C8 Corvette transmission leaks

In March 2020, a month after Chevrolet began customer deliveries of the 2020 C8 Corvette, a GM dealer technician created a Reddit thread about a leaking gearbox in a Corvette with 32 miles. That car hadn't even been sold yet. Since then, as a search of "C8 Corvette transmission leak" shows, it's been tales of woe for some owners. Something in the Tremec TR-9080 transaxle in the back of the mid-engined Corvette doesn't work as it should, the fault able to cause codes that the transmission needs service, or that the driver needs to shift to park. In some cases, the battery would die because of follow-on issues after the initial transmission code, that code preventing the car from powering down. As Autoevolution reports, GM filed paperwork with the National Highway Traffic Safety Administration in August to look into what's going on. Between forum threads and GM's investigation document, there are several issues mentioned. The most common appears to be the dual-clutch transmission leaking fluid due to gasket failures like the one suffered by one owner at 858 miles, and another for an owner currently enduring a second leaking transmission. The Midengined Corvette Forum reported that Chevy engineers redesigned the TR-9080 pan, fitting Corvettes with the new unit at some point in the 2021 model year. The original pan was stamped steel unit affixed to the engine with two studs and 13 bolts, plus "reinforcement plates." The updated pan is said to be a cast aluminum unit affixed with two studs and 17 bolts, omits the reinforcement plates, and gets a new machined new groove around its edge to seat the gasket seal. The GM paperwork now at the NHTSA mentions a P1789 code, and says one reason for it could be "debris on the park position sensor magnet causing an incorrect position reading to the TCM." This might be caused by another issue mentioned in forums, which is clogged transmission filters. GM gives instructions for returning transmission filters to the company, and a poster on one forum said the Corvette tech at the dealer where he bought his Corvette told him the automaker "requires every used transmission filter to be returned to GM."  Whatever's going on, the problems haven't stopped, and they go beyond the P1789 code. Over the weekend, a 2022 Corvette owner posted on Corvette Forums that he got a check engine light on his car after just 850 miles.