PS-4 is designed specifically for Polaris 4-cycle engines and has high film strength and wear protection under extreme loads and temperatures. Exclusive anti-wear additives protect engine parts with extra rust and corrosion protection.
VALVOLINE 822401 Specifications. It’s exclusive chemistry is designed to reduce friction and enhance power. It is among the most popular engine lubricants in all types of racing including paved and dirt ovals, and drag racing.