Red Line Supercool Extreme Powersports Coolant 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 temperatures. Compatible with all glycol antifreeze and coolants, Red Line SuperCool is blended with deionized and purified water and WaterWetter, the most effective heat transfer agent available. WaterWetter contains corrosion inhibitors to satisfy the same ASTM corrosion tests that 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.