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 engine cooling system components DESIGNED FOR NORTH AMERICAN VEHICLES: Recommended for use with Ford and Chrysler vehicles that require Gold hybrid organic acid technology (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 Gold 50/50 Prediluted Engine Antifreeze + Coolant for North American Vehicles is a premium coolant is specifically designed to match the technology and color requirements of your North American vehicle and is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. PEAK OET Gold 50/50 Prediluted Antifreeze + Coolant is based on proprietary hybrid organic acid technology (HOAT). This ethylene glycol-based formula combines a mixture of organic acid corrosion inhibitors, stabilized silicate, and a nitrite/nitrate combination to provide complete corrosion protection to both gasoline and diesel engines. Its low silicate formula with deposit control additives protects against wet sleeve liner cavitation and scale formation. It is compatible with other hybrid gold formulations and is perfect for topping off your cooling system. This item contains a bittering agent called Denatonium Benzoate. This 1 gallon bottle is recommended for use with cars and trucks requiring a hybrid gold antifreeze/ coolant formula, including Chrysler vehicles from 2000-2012, Ford vehicles from 2002-2010 and other North American vehicles requiring a gold 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.