The current Motorcraft product catalog has a warning stating NOT to use their 10w30 & 15w40 diesel oils in any gasoline engine equipped with a catalyst.
But, both these oils still carry an API SL rating for gas engines. Why even bother with the SL rating, when they don't want us using them in a gas engine?
This new warning is a first for MC, AFAIK. Why the new warning???
But, both these oils still carry an API SL rating for gas engines. Why even bother with the SL rating, when they don't want us using them in a gas engine?
This new warning is a first for MC, AFAIK. Why the new warning???