It is generally recommended to change the transmission fluid in your vehicle every 30,000 to 60,000 miles. However, it is important to refer to your vehicle’s owner’s manual for the manufacturer’s recommended interval for changing the transmission fluid. Some newer vehicles may have longer intervals between transmission fluid changes, while others may require it to be changed more frequently. It is also a good idea to have the transmission fluid changed if you notice any unusual noises or problems with the transmission.
In addition to the mileage interval, there are other factors that can affect when you should change the transmission fluid. These can include the type of transmission fluid that is recommended for your vehicle, the type of driving you do (e.g. stop-and-go traffic vs. highway driving), and the age of the vehicle. If you are unsure about when to change the transmission fluid, you can consult with a mechanic or a dealership service department for more specific recommendations.