Mishimoto Liquid Chill® radiator coolant additive is a simple yet effective way to reduce engine temperatures. This additive is compatible with all coolant types and does not require mixing. Mishimoto Liquid Chill® is proven to reduce engine temperatures and is suitable for use in any liquid-cooled engine, including your diesel pull truck, road course hatchback, or trail riding dirt bike. Mishimoto Liquid Chill® is safe for use with all alloys and is formulated with a corrosion inhibitor, which not only prevents future corrosion but also will reduce pre-existing buildup. This additive is 100% biodegradable, non-corrosive, and nontoxic, making it a safe and effective solution for reducing high coolant temperatures. The ultra concentrated formula means you need only one small bottle for a car or dirt bike and two small bottles for a larger truck. *Does not contain ethylene glycol.