How often should you change atf?

The frequency of changing automatic Transmission Fluid (ATF) typically depends on the vehicle manufacturer’s recommendations, which can usually be found in the owner's manual. Generally, it's advisable to change ATF every 30,000 to 60,000 miles, but some modern vehicles may have longer intervals. Additionally, if you frequently drive in severe conditions—such as towing or heavy traffic—more frequent changes may be necessary. Regular checks of the fluid level and condition can also help determine when a change is needed.