oil grades
My new 2016 Ford Power Stroke F 250 diesel recommends oil 5w-40 syn. oil for towing. I’ve been using 15w-40 Shell Rotella. What oil have you been using?
Forum Discussion
I only use 15w-40 dinosaur Diesel oil. Not too particular about brand. I'm not convinced that syn is all that it's cracked up to be. Plus I change the oil every 5k.
