The Automatic Transmission Rebuilders Association (ATRA) recommends changing your transmission fluid every 50,000 km, or two years. You can confirm this in your vehicle’s owner’s manual. There you will find a recommended schedule directly from the manufacturer. If you keep to this schedule, your transmission will last long and perform more efficiently.
Transmission fluid deteriorates over time, especially with certain types of driving. If you do a lot of towing, hauling heavy equipment or if you make frequent stop-and-go-type trips in the city, your transmission fluid may be working on overdrive.
When transmission fluid deteriorates, it’s not able to do its job properly. It won’t be able to cool the transmission, lubricate its parts, or help necessitate smooth gear changes. This can lead to costly repairs in the future. Performing regular transmission fluid changes will save you money in the long run.