Evans High Performance Waterless Coolant is specifically designed for Racing venues that allow propylene glycol based coolants, but not ethylene glycol and food service equipment where ethylene glycol products are contraindicated. Evans Waterless Coolants have a boiling point above 375 Degree Fahrenheit and will not vaporize, eliminating overheating, boil-over and after-boil, while generating very low vapor pressures reducing strain on engine cooling system components. Contains no oxygen, effectively eliminating corrosion, liner and cooling pump erosion, resulting in reduced maintenance costs. Eliminates pre-ignition and detonation caused by overheating, reducing downtime, improving combustion efficiency, and delivering more power. During installation ensure that all of old water-based coolant and water is removed before installing this product.