SuperCool with WaterWetter is a pre-mixed coolant for motorcycles, ATVs, karts, generators, and other small water-cooled engines. This product doubles the wetting ability of water to improve heat transfer and reduce cylinder head temperature. Compatible with all glycol antifreeze and coolants, this product is blended with deionized and purified water and WaterWetter, the most effective heat transfer agent available with corrosion inhibitors to satisfy the same ASTM corrosion tests which glycol-based antifreezes are designed to pass (ASTM D2570 and ASTM D1384). Red Line's WaterWetter provides excellent rust and corrosion protection for modern cast iron, aluminum, and brass systems. Use with a long-life antifreeze if freezing temperatures are to be encountered. This product does not contain anti-freeze and its freezing point is 32ºF or 0ºC. Available in 1/2-Gallon containers.