These two products have different Royal Purple prices and part numbers.
Are they fundamentally different? Although i do not have statistical infomaition heresay ahs told me the Racing RP 21 has less detergents than thier OEM 5W30
Thanks-
Are they fundamentally different? Although i do not have statistical infomaition heresay ahs told me the Racing RP 21 has less detergents than thier OEM 5W30
Thanks-