Royal Purple manufactures have been a dependable name for the car owners – be it for synthetic oil or oil filters. Designed to perform as one of the top notch oil filter, they have super-premium Extended Life Oil Filter engineered with the finest advanced design. Here’s a quick royal purple oil filter guide for a better understanding of the functionalities: Shell: provides extra strength and security Metal end caps: gives a positive seal Center tube: prevent filter element collapse Filter element: provides superior filtration By-pass valve: maintain the oil flow in adverse situation Steel back plate: Gives higher burst strength Gasket: … Continue reading Why you Should Depend on Royal Purple Oil Filter