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.