Ready-to-Use 50/50 performance coolant blend of premium quality ethylene glycol based antifreeze and deionized waterProvides optimum rust and corrosion protection for all aluminum and magnesium motorcycle and ATV liquid cooled enginesContains anti-foam agents to reduce water pump cavitation and increase cooling capacity. Protects from freeze-ups in winter down to -34°FRaises your cooling systems boiling point to 265°F with a 15 lb. radiator capLow-silicate fluid which is ideally suited for all motorcycle applicationsNitrate, Amine and Borax freeFor 2-cycle or 4-cycle liquid cooled engines100% Biodegradable in its unused form64 ounce bottle