Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance. Designed for anti-wear protection and shear stability ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors Built to exacting specifications and extensively tested, GM Genuine Transmission Components include GM Original Equipment and a select offering of premium aftermarket Professional Transmission Components for GM vehicles. Get peace of mind that the fit, form, and function are up to the high standards and specifications of General Motors. From transmission cooler lines and fittings to gaskets and valve bodies, with GM OE Transmission Components and ACDelco Professional Transmission Components, you can rest assured that your vehicle is receiving high-quality parts engineered for long-lasting performance, durability, and dependability. GM OE and Professional Transmission Components are engineered for virtually every model of GM car, light-duty truck, and sport utility vehicles. Built to exacting specifications and extensively tested, GM Genuine Transmission Components include GM Original Equipment and a select offering of premium aftermarket Professional Transmission Components for GM vehicles. Get peace of mind that the fit, form, and function are up to the high standards and specifications of General Motors. From transmission cooler lines and fittings to gaskets and valve bodies, with GM OE Transmission Components and ACDelco Professional Transmission Components, you can rest assured that your vehicle is receiving high-quality parts engineered for long-lasting performance, durability, and dependability. GM OE and Professional Transmission Components are engineered for virtually every model of GM car, light-duty truck, and sport utility vehicles.