Quaker State 550024105 Enhanced Durability 5W-30 High Mileage Engine Oil - 55 Gallon Drum It protects three times less critical cam wear that Industry standard requirements Active seal conditioning agents helps prevent leaks and reduce oil loss Blended to a higher viscosity to help engine sealing and reduce compression loss Provides active base to neutralize combustion acids that can corrode your engine Extra protection for engines with more than 75,000 miles Contains additional anti-wear and exudation resistant additives to flight heat related wear Provides corrosion protection to protect from harmful acids generated by engine combustion Protects worn engine parts with thicker oil blend Helps prevent leaks and reduces oil loss with active seal recovery agents