Prestone Prestone AF-888P 5/150 Extension Life Af (Case of 6) Key Features;Protects vital engine parts for up to 5 years/150 000 mile with extended life formula;Includes the Prestone (r) protection package that meets corrosion protection standards for the cooling system;Concentrate formula;Must mix with water (distilled ideal) to the desired mix ratio of EG and water;Can be used for top-off complete drain and refill or flush and refill of the cooling system;Antifreeze/coolant extended life 5/150 inches size=gallon Recommended and formulated for use in all GM vehicles that require a GM Dex-Cool approved formula coolant and other cars and light-duty trucks with aluminum radiators. Concentrated blend of premium long-lasting inhibitors for extended performance protec tion against temperature extremes rust and corrosion for 5 years or 150 000 miles. Compatible with all extended life formulas at concentrations typically used in all vehicles including Audi BMW Daewoo Daimler Chrysler Ford GM Honda Mercedes Mit subishi Suzuki Toyota Volvo and VW.Recommended for all vehicles that require Dex-Cool (r) coolant and other cars and light-duty trucks with aluminum radiators to help combat harsher weather. Recommended for use in all GM vehicles that require a GM Dex-Cool approved formula coolant and other cars and light-duty trucks with aluminum radiators to help combat harsher weather. Blend of premium long-lasting inhibitors extend engine life. Protects against temperature extremes rust and corrosion.