Engine Ice - Ice Water is a coolant concentrate that improves the ability of water to wet transfer surfaces by 50%, significantly reducing surface tension and moving heat away from the engine faster than competitive products. Ice Water provides superior heat transfer and over 10% better corrosion protection for key aluminum components compared to the competition. It protects all engine parts, including cast iron, brass, steel, and rubber. Ice Water is easy to use. Mix the contents of the pouch with 3-5 gallons of distilled water to create a finished product that offers maximum cooling performance.