Before I put royal purple oil in my engine I have fews question before I do that.
Puting royal purple in the engine then do that mean from there I have to stick with royal purple bec someone tld me that after I used royal purple then I can't change my mind.
Do PP oil make 10w40 grade?
Puting royal purple in the engine then do that mean from there I have to stick with royal purple bec someone tld me that after I used royal purple then I can't change my mind.
Do PP oil make 10w40 grade?