Im a big fan of Valvoline Conventional. Its regular dino oil.
But performs great in my DI with 5000 mile oil changes. this based on UOA.
Now mine is a 2010. As you know the 2011's recommend Dexos.
This oil is not Dexos Approved. yet... as its not on the label and not on their website- in the product data sheet.
The other day I went to stock up on this oil- as it was on sale At Kmart- $2.40 a quart. Cant beat that. especially since its all I use...
BUT I noticed that some of the bottles had new labels. I read the labels and found that the older labels were SM/SL ILSAC GF4.
The new labels were SN ILSAC GF 5.
So I went online and found the following.... I Looked it up.
GF-5 Standard
In addition to GM dexos, a new International Lubricants Standardization and Approval Committee (ILSAC) standard, GF-5, will be introduced in October 2010. There will be a corresponding API category - SN Resource Conserving. The current GF-4 standard was put in place in 2004. The GF-5 standard will use a new fuel economy test, Sequence VID, which provides a statistically significant increase in fuel economy versus the Sequence VIB that was used for GF-4.
It's expected that all dexos1 approved oils will meet GF-5. However, not all GF-5 engine oils will necessarily meet the dexos1 specification.
Like dexos, the new ILSAC GF-5 standard will call for more sophisticated additives. The API will begin licensing marketers (the first license is expected October 2010) to produce and distribute GF-5 certified products, which are expected to include SAE 0W-20, 0W-30, 5W-20, 5W-30 and 10W-30 oils.
why stock up... wal mart 5qt jug =$15 kamrt 4 qt jug=$16.04 1 qt bottles I think is $4.25. so $2.40 is great.