Quaker State Advanced Durability 5W-30 Motor Oil - 5 Quart Jug Quaker State Advanced Durability 5W-30 Motor Oil ensures two times more wear protection than the industry standard throughout the life of the oil Prolongs engine life by helping engines survive daily commutes, from high-speed highway operation to repetitive, stop-and-go driving Quaker State 5W-30 oil provides protection against rust and corrosion caused by harmful acids generated by engine contaminants Maintains required viscosity from start to finish, providing optimal protection Quaker State motor oil has been in the market for more than 100 years and is one of the most trusted consumer brands in the country