Automatic Transmission Fluid

Automatic transmission fluid (ATF) is the fluid used in vehicles with self shifting or automatic transmissions. It is typically colored red or green to distinguish it from motor oil and other fluids in the vehicle. On most vehicles its level is checked by a dipstick while the engine is running.

The fluid is a highly specialized oil optimized for the special requirements of a transmission, such as valve operation, brake band friction and the torque converter as well as gear lubrication.

ATF is also used as a hydraulic fluid in some power assisted steering systems, as a lubricant in some 4WD transfer cases, and in some modern manual transmissions.

Read more about Automatic Transmission FluidModern Use, Current Fluids, History

Other articles related to "automatic transmission fluid, fluids, transmissions, fluid":

Automatic Transmission Fluid - History
... Dexron II Type C and later Dexron II Type D to replace the fluids which were made from whale oil ... Through the late 1970s, Ford transmissions were factory filled with a fluid identified as ESW M2C33-F ... To provide a fluid that would be available to the general public for service fill, oil companies and other than factory fill suppliers were allowed to develop fluids meeting the ESW M2C33-F ...

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