●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 ●Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional ●ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors