ATF replaced in my 2018 Tacoma as a preventive measure. There is no lifetime liquid. Toyota has reduced the service interval for "heavy use" to 60,000. There are several fluids that claim to be compatible and comparable, but why not use what was in the truck? Be sure to enter the correct amount. Luckily my scanner reads the ATF temp so the process was easy. It took about an hour. I did not notice any changes in the work, but I was on maintenance, there were no problems before changing the fluid. It's nice to know there's new, clean fluid in the transmission.
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