Rev Guard is the only engine protector in its class using our advanced CRF formulation (Ceramic Reinforced Fluoropolymer) to reduce friction, heat, and wear - giving you maximum protection and helping to extend the life of your engine. In Sequence IVA friction benchmark testing, premium grade motor oil alone begins to break down in its effectiveness after just 75 hours of engine use. The chemical blend used in Rev Guard is designed to extend the oil's performance measurement to over 200 hours under the exact same laboratory tests.