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 NORTH AMERICAN VEHICLES: Recommended for use with Ford and Lincoln vehicles 2018 and newer, including hybrid and electric models that require a YELLOW Phosphate-Enhanced Organic Acid Technology (POAT) formula GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 400,000 miles or 15 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 Yellow 50/50 Prediluted Antifreeze + Coolant for North American Vehicles is a premium coolant 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 North American Extended Life 50/50 Prediluted Antifreeze + Coolant is an ethylene glycol-based formula specifically developed for use in any North American vehicle requiring a Yellow Phosphate-enhanced Organic Acid Technology (POAT) formulation, and is specifically designed to provide protection of your vehicle’s engine cooling system metals, including aluminum, against damaging rust and corrosion. It is compatible with other Yellow POAT formulations, and is perfect for flushing, filling, or topping off your cooling system. This 1 gallon bottle of extended-life antifreeze is recommended for use with automobiles requiring a Yellow POAT formula, including: Ford and Lincoln vehicles from 2018 & newer, including hybrid and electric models, as well as other North American vehicles that need a Yellow 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 400,000 miles or 15 years.