1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate. PROTECTS: Advanced formulation prevents rust & corrosion protecting all cooling system components DESIGNED FOR EUROPEAN VEHICLES: Recommended for use with Audi, Porsche, Volkswagen, BMW, Mini, Dodge and Freightliner Sprinter, Jaguar, Land Rover V8 and Diesel, Mercedes-Benz, SAAB, Volvo, Tesla, Smart and other European vehicles that require a BLUE Silicate-Enhanced Hybrid Organic Acid Technology (Si-HOAT) formula GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years. 50/50 PREDILUTED FOR QUICK TOP OFFS: Already prediluted to make topping off your cooling system a breeze PEAK Original Equipment Technology Extended Life Blue 50/50 Prediluted Antifreeze + Coolant for European vehicles is a line of premium coolants specifically designed to match the technology and color requirements of European vehicles and is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. PEAK OET European Blue Extended Life 50/50 Prediluted Antifreeze + Coolant formula is based on proprietary silicate-enhanced hybrid organic acid technology (Si-HOAT), and is specifically designed to provide protection of your vehicle’s engine cooling system metals against damaging rust and corrosion. It is compatible with other blue Si-HOAT formulations and is perfect for topping off your cooling system. This 1 gallon bottle is recommended for use with European cars and trucks requiring an Blue Si-HOAT formula, including: pre-1996 Audi, Porsche and Volkswagen vehicles, All BMW and Mini, including hybrid and electric models, All Dodge Sprinter, pre-2013 Freightliner Sprinter, pre-1997 Jaguar, 1990-2005 Land Rover V8 and Diesel, pre-2014 Mercedes-Benz, including hybrids, pre-2000 SAAB, pre-2015 Volvo, All Tesla, 2011-2014 Smart, and other European vehicles requiring a blue coolant formulation. When installed as part of a complete flush and coolant fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years.