ZEREX G40 Antifreeze/Coolant provides unsurpassed protection for vehicles requiring genuine G40 and G12++ fluid. This Original Equipment Manufacturer (OEM) approved formula ensures you are getting the precise factory-filled original formula for your European vehicle. ZEREX G40 is a premium grade, long-life coolant that employs nitrite, amine and phosphate-free, Si-organic acid technology (Si-OAT) to protect the cooling system from rust and corrosion. ZEREX G40 chemistry will not void vehicle manufacturer warranty. Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications. Don't just use any coolant, use the chemistry specified by the manufacturer: Use ZEREX.