Oil consumption with 6.6 turbo Duramax??
Hey folks -- I have a 2012 Chevey 2500HD w/the 6.6 Duramax. I seem to be having trouble with the engine using oil bewteen changes. I've been using Shell Rotella-T 15-40W and just did my 3rd oil chang...
Forum Discussion
gmcsmoke wrote:Charlie D. wrote:
My 2013 owners manual says nothing about semi or full synthetic oil. It does state to use 15w40 CJ-4.
Your manual says to use 15w-40 zero and above which is dino oil. It also says to use 5w-40 below zero which is a synthetic oil
So you don't think there are any 15-40 Synthetic oils?
