Mobil ATF D/M is recommended by ExxonMobil for use in applications requiring: GM DEXRON? IIIH Ford MERCON? Allison C-4It is also approved for Allison TES-389 (AA-32792008). Excellent oxidation stability Helps resist chemical deterioration over long service periods. High viscosity index Helps retain adequate lubricating body for severe hot-weather service without thickening excessively at low starting temperatures. Corrosion prevention Helps provide protection against rusting and corrosion, plus special protection for soldered fittings. Foaming resistance Contains an effective anti-foaming agent. Elastomer compatibility Is not harmful to synthetic rubber seal materials. Good lubricating characteristics Gives quiet operation, smooth shifting, and excellent wear protection. Controlled friction propertiesTransmission of power is smooth and efficient throughout all normal temperature ranges. Automatic transmissions should be checked for proper fluid levels at regular intervals, and the fluid should be changed at manufacturer-recommended intervals. However, this may vary due to your vehicle's operating conditions. Some manufacturers recommend more frequent changes of transmission fluid under severe driving conditions, such as heavy traffic, high ambient temperature and trailer pulling. Pit Stop USA offers Mobil 1 25217, Mobil ATF D/M - 1 Quart at low everyday prices. Be sure to check out all of our products from Mobil 1 including Mobil 1 Automatic Transmission Fluid and more.