bbwhitejr
Well-Known Member
Need to do an oil change... what oil is best for these motors? I always used shell rotella in my cats, what do these like?
I have always run Shell Rotella 15w-40 in boats and trucks. Ran it in the QSCs in the 44 and running it now in our 6CTAs. Run the same in diesel generators. Run the 30w in the transmissions. Never an issue and oil analysis have always come back great. Also have a lot of friends that are Shell people. I am sure the Valvoline is also a great oil. Might come down to a personal preference between the two….
Bennett