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 have always used Rotella T 15W40 in my 7.3 and still do. But I use Rotella T6 5W40 syn in the 6.7.
