Description Videos Reviews Purple Ice is a high performance radiator conditioner. Its advanced 2-in-1 corrosion inhibitor and wetting agent provides year-round defense against corrosion. Purple Ice also reduces the surface tension of the radiator coolant to help reduce engine temperatures. Reduces Coolant Temperatures Extensive testing confirms Purple Ice reduces coolant temperatures better than comparable products while providing extra corrosion protection. PERFORMANCE ADVANTAGES Reduces coolant surface tension to allow greater heat transfer, resulting in lower coolant temperatures Reduces hot spots in the engine and cylinder heads, reducing the possibility of engine failure Helps prevent overheating, keeps the system clean and extends the life of the water pump Purple Ice is safe to use with water-only or antifreeze / water blends Purple Ice is compatible with OEM and stock replacement coolants, including extended-life antifreeze's Purple Ice does not contain glycol and is safe and legal for track use RECOMMENDED TREAT RATE* For use with 50/50 antifreeze / coolant mixture: 1 oz. / quart of cooling system capacity For use with straight water or higher water percentage antifreeze / coolant mixture: 2 oz. / quart of cooling system capacity * Minimum of 20% antifreeze is recommended in street-driven vehicles. Purple Ice does not provide freeze protection. Use an appropriate amount of antifreeze for the cold temperatures in your area. Bobby Likis Purple Ice | Royal Purple Car Clinic host Bobby Likis talks Royal Purple's radiator cool... In the Garage with Dennis: Purple Ice Versus Water Wetter Learn about the advantages that Purple Ice cooling additive ha...