Evans Cooling high performance waterless engine coolant is a proprietary base fluid with a specially-formulated inhibitor package designed for all gasoline, light-duty diesel, LP, and CNG engines. It contains no silicates or phosphates, and requires no supplemental coolant additive. This coolant has a boiling point of 375 degrees F and will not vaporize--eliminating overheating, boil-over, and after-boil. The low vapor pressure reduces stress on the engine cooling system components. Evans Cooling high performance waterless engine coolant will also eliminate corrosion and offers protection to temperatures as low as -40 degrees F.