wow..nice to see post with hundreds of views and 1 maybe 2 replies.not just mine either.what a helpfulplace.i wont be coming back...thanks anyway tho...not

 

Ahhh, still another satisfied customer after soooo many posts

 

After only 1 previous post you make a statement like that. Get real. I read your post and GM does not say it is mandatory to use Dexos oil. It is only recommended. It is a semi synthetic oil and in 2011 GM started to recommended it. No your engine won't blow up or seize if you don't use it.