Well, I guess I really don't lose any sleep over warranty hassles with my pickup because of oil I use. Especially since I have other engines that cost, alone, almost as much as my pickup does that no OEM gives me any hassles about oils in them. I have never had a warranty issue over oils in any commercial truck, ag tractor, etc. Dealing with an auto dealer is like dealing with youngsters. They think they know a lot, but their nonsense only works with the low information crowd. And a quick call to my attorney and having him give them a call will probably cure any dealer nonsense. And I am sure the FTC, who has just recently placed more emphasis on enforcement of the Magnussen Moss Warranty act because dealers are trying to go rogue, could make trouble for them also.
Nope. Doesn't bother me a bit that I am using a non dexos approved oil. Especially since the owners manual clearly states "or equivalent" in the section stating what oil to use. Well, the Schaeffer oil I use is more than "equivalent".
The dealer has about as much luck denying a warranty claim because of oil I use as a snow ball in hades. But they are welcome to try. I love taking on mental pygmies and making them eat crow. But first, the dealer is going to have to determine if the oil is not a dexos oil or "equivalent" per the manual. Not hardly.