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
Due to level of compression ratio's on diesels, and the resultant load on the whole engine package, I would always, if given the choice, run a full synthetic 5w-40 CJ-4 rated diesel oil.
I am convinced that the product known as Mobil 1 TDT is a superior product to Rotella T6, both in 5w-40. I know too many people that run the Rotella 5w-40 in little VW VE motored 1.9 Liter TDI's that have oil consumption problems between 10k mile oil changes, while the Mobil 1-TDT never drops on their dipstick. Usually the Rotella 6 fanboys need to add 1/2 a qt to a full qt by about 6 or 7000 miles, with another 3 or 4,000 to go before the next oil change.
YMMV, these have been my personal observations, and I've serviced and done oil changes on 100's of A4 1999-2003 VW Jetta ALH TDI motors.
I am convinced that the product known as Mobil 1 TDT is a superior product to Rotella T6, both in 5w-40. I know too many people that run the Rotella 5w-40 in little VW VE motored 1.9 Liter TDI's that have oil consumption problems between 10k mile oil changes, while the Mobil 1-TDT never drops on their dipstick. Usually the Rotella 6 fanboys need to add 1/2 a qt to a full qt by about 6 or 7000 miles, with another 3 or 4,000 to go before the next oil change.
YMMV, these have been my personal observations, and I've serviced and done oil changes on 100's of A4 1999-2003 VW Jetta ALH TDI motors.
