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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.

GM claims it's first to sell million 30+ mpg vehicles

As we continue to put together all the data for the year-end edition of By The Numbers, General Motors has announced that it sold more than a million vehicles in the US last year that achieved at least 30 miles per gallon on the highway. More impressively, GM managed this feat using multiple strategies including small vehicle size, turbocharged engines and hybrid or plug-in technologies across four brands (Buick, Cadillac, Chevrolet and GMC) accounting for 13 separate models. This number will grow even more in 2013 thanks to cars like the all-electric Spark, the diesel Cruze, the range-extended Cadillac ELR and the Buick Encore compact CUV.
GM's small car sales were up 39 percent last year helping to attain this million-sales mark for 30-mpg models, and almost 40 percent of all GM sales consisted of cars with fuel-efficient I4 engines. In regards to more advanced means of improving fuel economy, GM says that it plans on having 500,000 vehicles with "some form of electrification" on the road by 2017.
Scroll down for the full list of GM's million 30+ mpg cars as well as an informative press release.

Amelia Island 2013: Chevrolet Corvette Sting Ray from concepts to split windows

While this year marks 60 years of the Chevrolet Corvette, the 2013 Amelia Island Concours d'Elegance focused on one of the coupe's most sought after models, the 1963 Sting Ray. General Motors design boss Ed Welburn was on hand to show off the all-new C7 Corvette, but even the hard-edged styling of the 2014 Stingray couldn't take away from the beautiful 1963 models sitting out on the field.
In addition to the original Sting Ray and the 1959 Sting Ray Concept, some of the other classic 'Vettes included "Big Tank" racecars, an interesting cutaway coupe, a right-hand-drive Z06 and the attention-grabbing 1963 Corvette Rondine by Pininfarina. Another impressive Corvette was the 1964 Corvette XP-819 rear-engine prototype. Owner Mike Yager had the car finished as a driving chassis for this year's show, but promises the car will be back to its original glory in time for next year's event.