Lots of times I read on here where using an oil of a grade or even a specification other than what is listed in the owner's manual will void the warranty. It came up in another thread today, and I've always wondered if this is true.
I looked through the owner's manuals for all four of my (admittedly older) cars and none of them specifically state that using an oil other than what is recommended will violate the warranty. Generally I've seen warranties for other products carefully spell out what will invalidate the coverage, but I've never seen this listed for a vehicle. Does anyone know if this concern has any validity or not?
It's not like I care really for any of my cars but since it comes up a lot on here I was just wondering.
I looked through the owner's manuals for all four of my (admittedly older) cars and none of them specifically state that using an oil other than what is recommended will violate the warranty. Generally I've seen warranties for other products carefully spell out what will invalidate the coverage, but I've never seen this listed for a vehicle. Does anyone know if this concern has any validity or not?
It's not like I care really for any of my cars but since it comes up a lot on here I was just wondering.