K khalil b New member Apr 19, 2010 #1 I want to know what kind of brand and if i should use 5w30 10w40 or what? Have a 92 caprice. 80,xxx miles 5.0L engine. Does royal purple work well?
I want to know what kind of brand and if i should use 5w30 10w40 or what? Have a 92 caprice. 80,xxx miles 5.0L engine. Does royal purple work well?
