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.
- Great lubrication flow and pump ability in below freezing weather
- Maintains required viscosity from start to finish, providing optimal protection
- Provides corrosion protection to protect against harmful acids generated by engine contaminants
- Excellent protection against formation of sludge and other harmful deposits
- Oxidation control is high resistance to oxidation, keeping the oil fresher for longer
