Phillips 66® Mercon® V ATF is a premium quality, synthetic blend transmission fluid approved for use in passenger car and light truck automatic transmissions that require a Ford Mercon® V fluid. It is back serviceable for use in 2006 and earlier model-year Ford vehicles where the OEM previously specified MERCON® fluid, and also may be used in most 2005 and earlier model-year GM automatic transmissions. Mercon® V ATF is formulated to provide improved antiwear and anti-shudder performance compared with previous-generation fluids, as well as better low-temperature properties. It is highly shear stable and has excellent oxidation resistance for long fluid life. The part-synthetic formulation provides enhanced performance benefits compared with conventional, all-mineral transmission fluids.