APRIL SUPREME LONG LIFE is a premium quality orange antifreeze-coolant suitable for all GM vehicles (Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Oldsmobile, Saturn and Saab). Made with OAT (Organic Acid Technology), it meets GM’s DEX-COOL specifications and provides up to 250,000 km or 5 years protection in a properly maintained cooling system. It protects all metal components, is free of amines, borates, nitrites, phosphates and silicates, and is compatible with all major brands of DEX-COOL antifreeze-coolants.