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
