Just talked to Mobil's help line to inquire as to availability of PDS's for EP line. He asked if my car was still in warranty. When I replied that it was, he said I CANNOT use EP until ALL manufacturer's warranties have expired because EP does not meet GL-4's fuel efficiency standards.
I don't have my owner's manual handy, but I would be shocked if it requires GL-4, but probably references the starburst. If I am not mistaken, arn't most of the premium oils we discuss here GL-3?
Sorry if this has been discussed, but this was news to me.
I don't have my owner's manual handy, but I would be shocked if it requires GL-4, but probably references the starburst. If I am not mistaken, arn't most of the premium oils we discuss here GL-3?
Sorry if this has been discussed, but this was news to me.