Final answer:
Automatic Transmission Fluid (ATF) is the type of fluid that goes in an automatic transmission. It is a hydraulic fluid specially formulated to meet the needs of automatic transmissions, serving multiple purposes such as lubrication, cooling, and power transmission.
Step-by-step explanation:
In an automatic transmission, the type of fluid that is typically used is Automatic Transmission Fluid (ATF).
ATF is a hydraulic fluid specially formulated to meet the needs of automatic transmissions. It serves multiple purposes in the transmission, including lubricating moving parts, cooling the transmission, and transmitting power.
When selecting ATF, it is important to use the type recommended by the vehicle manufacturer, as different transmissions may require different formulations. ATF is typically available in different grades, such as Dexron or Mercon, which are compatible with specific transmission types.
Using the wrong fluid or not maintaining proper fluid levels can lead to transmission problems and premature wear. It's important to consult the vehicle's owner's manual or seek professional advice to ensure the correct ATF is used.