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
According to Ford owner's manual, 10W-30 oil is not approved for bio-diesel above B5 which has been pretty hard to avoid in our travels. The pumps never seem to say if they're B5 or B20 or something in between--I'm sure it has to do with what is cheapest at the moment. Also, for sustained driving above 100 degrees 5W-40 syn is recommended. And, while out looking for oil be sure to get a diesel approved oil--my 2012 6.7 requires CJ-4 rated oil. Using non-diesel oil runs the risk of fouling the catalytic converter.
