Prestone Power Steering Fluid for American Vehicles is a premium full-synthetic formula containing the latest additive chemistry. Designed for extreme temperatures (-40 degrees Fahrenheit to 266 degrees Fahrenheit), it provides excellent operation in low and high temperatures. It also protects against wear, foaming, and corrosion to maintain optimal performance, and delivers excellent oxidative stability for extended fluid life. Specifically developed for use in all American vehicles, including GM, Ford, and Chrysler vehicles (not for use in 2006-2009 Jeep Grand Cherokee and Commanders). Prestone Power Steering Fluid is compatible with original factory-fill OEM fluids.