Dexos1 Or Not

[tpdolph]

I just purchased a 2011 GMC Sierra 5.3L Z71 and the manual says to use Dexos approved oil, but I have 10 quarts of Mobil 1 Fully Synthetic oil (API STARBURST 5W-30) on hand any thoughts/opinions on weather I should/could use this oil? The Oil I have says nothing about Dexos? This is new to me as the last GMC I purchased was in 1999 which by the way is what I traded for this one, So I'm sure this topic may be getting old to most but is new to me, Thanks

[RyanbabZ71]

http://www.gm-trucks.com/forums/index.php?...50&hl=dexos

 

Mobil1 is dexos approved, use what you have. They just started printing it on the containers recently. I seen the 5 qt jugs at Meijer yesterday that had the logo.

 

Here is the complete list

 

http://www.gmdexos.com/licensedbrands.html