EXTREME SYNTHETIC FORMULA: PS-4 Extreme uses PAO and Ester powersports grade synthetic base oils to deliver maximum performance and superior wear protection EXCLUSIVE ADDITIVE SYSTEM: Polaris-engineered clean engine additive system significantly reduces engine deposits to maximize power while the moly-boost and ZDDP additives enhance wear protection ULTIMATE PROTECTION AND PERFORMANCE: PS-4 Extreme 0W-50 provides the widest viscosity range for extreme high and low temperature engine protection and performance SPECS: Full synthetic 0W-50, extreme performance, wet clutch approved APPLICATIONS: Polaris Tested & Engineering Approved for use in all 4-stroke Polaris Off-Road Vehicles and youth 4-stroke snowmobile engines. Designed for extreme applications with ultimate protection in ambient temps of -45°F to over 130°F.