Valvoline DEXRON/MERCON Automatic Transmission Fluid - 5gal (VV349) Valvoline DEX/MERC ATF may be used for service fill where Ford M2C138-CJ, M2C166-H, Mercon, DEXRON, DEXRON-II, DEXRON-III, or Allison TES-389, is recommended Flows easily at low temperatures providing good cold start shifting Minimizing sludge and varnish deposits Contains additive to protect automatic transmission hardware Protects transmission seal materials