Ford 6.7 - what oil do you use?
I know the question will elicit various responses, but a post regarding a 2012 Ford 6.7 engine failure on another forum prompted the question. He used 10w30 non-synthetic oil which he stated was chan...
Forum Discussion
As long as the oil is CJ-4 compliant, it is ok. Then go by the temps you will be using the oil in if really concerned. Lots of people change types between winter and summer.
