1969 Gmc 2500 Camper Special 2wd Truck, Runs/ Drives Chevy V8 Auto Chevrolet on 2040-cars

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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 able to add diesel to half-ton pickups if market demands it

A few years ago, the trend in half-ton pickup trucks was ultra-luxurious trims, often with the words "limited" or "platinum" tacked on after the model name. That was well and good, but we like this latest fad a lot more - diesel engines. First, Ram came to bat with a 3.0-liter, V6 turbodiesel for the 1500, then Nissan announced that the next-generation Titan would be getting an eight-cylinder Cummins diesel.
Now, word is coming in from AutoGuide that General Motors can, if it so chooses, drop a diesel engine into its light-duty trucks. The plot thickens, though, as it turns out that said diesel would be the same one Ram is using for its truck. According to AG, that engine comes from VM Motori, which GM owns a sizable chunk of. Therefore, GM can snag the 3.0-liter, V6 diesel for its trucks just as easily, if not more easily, than Ram.
If it's so easy for the Detroit-based manufacturer to access the engines, why not offer the a diesel-powered Sierra and Silverado from the start, then? According to GM spokesman Tom Wilkinson, The General doesn't seem so confident in a diesel pickup outside of its HD offerings. According to Wilkinson, the cost-benefit ratio doesn't line up for customers, thanks to both the impact on the truck's sticker price and the higher price of diesel, in general (the national average for a gallon of diesel is 43 cents more than a gallon of 87-octane unleaded).

GM will no longer remove parts from trucks to calculate curb weights

Following last week's mild uproar after it was discovered that Ford and General Motors were removing some optional parts from their pickups to lower the curb weight and consequently increase the maximum payload, GM has come out and committed to a base curb weight for its upcoming Chevrolet Colorado and GMC Canyon compact trucks (although it has yet to publish them) and its current Silverado and Sierra. The company will do the same for its heavy duty offerings, although those numbers have not been finalized yet.
"This will make our curb weight and payload specs more consistent with those of most other truck makers, making it easier for customers to compare vehicles," GM spokesman Tom Wilkinson told Autoblog in an emailed statement.
As GM notes - and as every manufacturer has noted since this story broke - customers still shouldn't take max payload ratings as gospel. Instead, they should refer to their truck's Tire and Load Label, like the one shown at the inset, which will offer detailed information on max payload, specific to their truck.