EXTREME coolant contains unique OAT corrosion inhibitors grouped into a package called ProShield. It also contains nitrite and Molybdate. These additives give the coolant an extended service life and provide advanced engine protection.
EXTREME coolant is designed for use in heavy duty, off-road vehicles. This includes manufactures such as Caterpillar, Cummins and many more. Consult the OEM reference chart for specific applications.