Castrol Edge with Syntec Power Technology 5W20 Motor Oil, 5 qt: * Full synthetic motor oil * New, powerful dispersant molecules suspend particle build-up * Fights power-robbing deposits * Powerful additive package neutralizes corrosive particles, preventing them from grouping together and forming deposits * Neutralizes acids that cause rust and corrosion * Protects vital engine parts, such as cylinders, bearings and hydraulic valve lifters