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
aruba5er wrote:
2011 and newer require the use of a synthetic blend or full syn. Do not use the old 15/40 You should be using the T6 synthetic. GM will not warrenty the motor with the use of plain old oil i;ve been told. And I find it very difficult to figure out the dipstick.No real "add oil or any other marks.
My 2013 owners manual says nothing about semi or full synthetic oil. It does state to use 15w40 CJ-4. It also says nothing about mileage but to go by the DIC and change at least once a year. I use Rotella T.
