What is automatic trans-axle fluid?

Automatic Transmission Fluid. When you change your transmission fluid, always use the recommended (listed in the manual) fluid. (1989-91 owners, ignore the manual and use ATF+3). Don't just assume your mechanic or dealer knows what fluid to use. Ask them what they will use and make sure it's the right one. (Some people recommend watching the mechanic pour it in, and for good reason! We have been told about mechanics who said they were using ATF+3 when they were not. Is your transmission worth the $10 you save on a cheaper fluid?) All Chrysler four-speed automatic transmissions* are very sensitive to the quality of the transmission fluid. Only use the ATF+[3 or 4] in these transmissions. Do not use Dexron or Mercon.