1/2 Gallon (2 quarts) bottle of Evans Waterless Coolant. When replacing your engines stock coolant with Evans, be sure to flush out the radiator, engine, coolant reservoir, and all coolant lines prior to refilling with Evans. A single 1/2 gallon (2 quart) bottle is enough to refill the cooling system on most sport atvs and dirtbikes. Please refer to your owners manual for exact capacities. Waterless Coolant for all Power Sport Vehicles Specifications; boiling point above 375 degree F. freezing properties below -40 degrees F. Unbeatable protection against corrosion and electrolysis Lasts the life of the engine Low toxicity Approximate coolant capacities, including overflow reservoir: Raptor 700 - 2 quarts YFZ450R (EFI) - 1.6 quarts YFZ450 (carb) - 1.4 quarts TRX450R - 2 quarts LTR450 - 1.5 quarts