http://autos.aol.com/article/gm-engine-oil/
It's just a new standard to improve lubrication of high reving low tolerance motors. GM won't be allowed to limit who can make oil that meets the standards. As long as a company meets the specs GM says it has too then that oil won't void the warranty. This prevents car companies from requiring you to get them serviced through the dealer only. Which is illegal.
It's suppose to have a 10k life span too.
The major problem i have with 10K oil changes is the Oil filter might not last that long. And no one changes the oil filter between oil changes.
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