(960083 PRIME SERIES 5W20 12/1 68715852056) Prime Series Conventional Motor Oil's anti-wear additives provide excellent wear protection of critical engine parts. A high level of dispersancy in Prime Series Motor Oils protects against deposit and sludge formation in stop-and-go driving, sustained high-temperature operation, and protects against corrosion. Their excellent high-temperature oxidation stability helps prevent viscosity increase and oil gelling in the crankcase. They help keep PCV systems clean to maintain smooth engine performance. SAE 5W20 is suitable for use in many older vehicles and a few late model cars and trucks, often those with larger 6-cylinder and V-8 high-performance engines. SAE 5W20 is also designated as a "resource-conserving lubricant" by API.