Quaker State® ultimate Durability™ full synthetic motor oil, but then it wouldn't fit into this bottle. Quaker State® ultimate Durability™ is our most powerful formulation, providing extreme engine performance and protection against deposits, which allows your engine to operate at maximum horsepower.
2X better wear protection than wear standards set by top American and Japanese manufacturers
More engine life, as your engine temperature increases, heat-activated viscosity improvers and anti-wear additives kick-in to maintain oil thickness to help extend engine life
More performance, excellent lubrication in freezing temperatures
Improved resistance to engine stress at high engine speeds or under heavy loads
Excellent resistance to thermal and viscosity breakdown
Excellent protection against the formation of sludge and other harmful deposits