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GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.

Sinkhole Opens Up In National Corvette Museum, Swallows Eight Cars

More cars are being moved inside the National Corvette Museum in Bowling Green, Ky. to avoid falling down the same sinkhole that swallowed eight classic sports cars early this morning, Autoblog reported. Museum officials said the hole was discovered when motion sensors activated around 5:45 a.m. The rescue mission can be viewed on the museum's live feed cameras, which weren't working after the sinkhole emerged. A 1993 ZR-1 Spyder and a 2009 ZR1 "Blue Devil," both on loan from General Motors, were among the cars that fell into the sinkhole. The museum owned the other affected Corvettes, which included a 1963 Corvette, a 1984 PPG Pace Car and the 1 millionth Corvette ever produced. The state of the cars at the bottom of the hole isn't known, but trial lawyer and sinkhole expert Ted Corless said the cars may be a total loss for the museum and GM. "Most states, including Kentucky, exclude damage caused by sinkhole activity," he said. "There will be, in all likelihood, a claim made, but a lot of policies would specifically exclude these kinds of damages." Corless has 15 years experience dealing with sinkholes. He said that typically neither the building, nor the cars themselves are protected under their insurance policies. "I would have to say, more likely then not, they're going to have an uninsured loss measured in the hundreds of thousands of dollars." The museum is closed Wednesday while a structural engineer assesses the damage. Related Gallery 2014 Chevrolet Corvette Stingray Test Drive View 9 Photos Related Gallery 2014 Chevrolet Corvette Stingray Test Drive View 9 Photos Weird Car News Chevrolet GM corvette

Ram 1500 bests new F-150 in MT pickup shootout

Ford's 2015 Ford F-150 is a technological tour-de-force, what with its aluminum-intensive construction and its powerful and efficient new 2.7-liter EcoBoost engine option. But now that it's hit the market, it's time to get down to brass tacks and find out how just the latest F-150 actually stands up to its rivals in the hyper-competitive fullsize segment. Motor Trend is among the first to round up the Ford (in Lariat 2.7-liter 4X4 guise here) and put it up against the Ram 1500 Outdoorsman EcoDiesel 4x4 and 5.3-liter-equipped Silverado 1500 LTZ Z71 to find out how Dearborn's new-think truck measures up. The test put the trio through over 1,000 miles of tough driving in California and Arizona in a variety of conditions from just cruising around unladen to hauling a trailer. MT found all three trucks to be competent, but the most praise got heaped on the Ram and the Ford, with the Chevrolet falling a step behind its competitors in many tests. Among the Ford's most-liked features was its 2.7-liter, twin-turbo V6 that helped make the F-150 easily the quickest of the group, with some editors saying the engine felt about the same whether driving around with cargo in the bed or not. There was some minor turbo lag during acceleration while trailering, but that issue affected the Ram, too. The Ram's powertrain was lauded, as well. The EcoDiesel was torquey around town, and the 1500's combination of an eight-speed automatic and air suspension was judged to be the best of the lot. It was the most difficult to get into the bed, though. The Ram also won the fuel economy award by netting 20-miles-per-gallon city and 28-mpg highway in the test to beat its Environmental Protection Agency ratings of 19/27. The Ford's EcoBoost managed 17/22, one mpg off each from the EPA numbers, and using a lot of throttle really depleted its efficiency. As MT notes, however, it would take time for the diesel's mileage savings to pay off at the pump for these two trucks. In the end, the Ram just barely eked out the win, with the title partially earned because of "the Ford's unknown maintenance and aluminum repair costs," according to MT. Go check out the full comparison to read all of the details, then let us know what you think in Comments.