PEAK Original Equipment Technology North American Vehicles Orange Antifreeze + Coolant is specifically designed for Ford, GM and Chyrsler vehicles requiring an Orange coolant, and is formulated with the same organic acid technology (OAT) that protected your vehicle right from the factory. This coolant can be mixed with any DEX-COOL® approved formulation. It is free of phosphate, amines and 2-ethyl hexanoic acid and will provide excellent protection against rust and corrosion to all cooling system metals, including aluminum.