Reduces wear and lowers temperatures compared to conventional 20W-50 racing oils. Provides increased high temperature and high shear protection for wet sump and high compression applications. XP9 utilizes select synthetic base oils for increased durability at high temperatures. Compatible with methanol and high octane race fuels. Formulated with proprietary anti-wear and friction reducing additives to fight valve train wear and increase horsepower. Ideal for high output steel block engines. Viscosity typical of 10W-40.