How Often Should You Change Transmission Fluid

As an essential component of your vehicle's powertrain, the transmission is in charge of transferring power from the engine to the wheels. It's a complex system that requires proper maintenance to keep it running smoothly, and one of the most critical aspects of transmission care is changing the fluid regularly.

So, how often should you change your transmission fluid? The answer depends on a few things, such as the make and model of your car, the type of transmission you have, and how you use your vehicle.

Most car manufacturers recommend changing the transmission fluid every 30,000 to 60,000 miles. However, some high-performance vehicles or those used for heavy-duty purposes may require more frequent fluid services. It's best to consult your owner's manual or a professional technician to determine the ideal interval for your specific vehicle.

Ignoring your transmission fluid can lead to serious problems down the road. Over time, the fluid can become contaminated with debris, causing it to lose its ability to lubricate and cool the transmission's moving parts. This can lead to premature wear and damage, resulting in expensive repairs.

Here are some warning signs that it may be time to replace your transmission fluid:

  • Strange noises: If you hear grinding or whining noises when shifting gears, it could be a sign that your transmission fluid is low or contaminated.
  • Shifting problems: If your car is having trouble shifting gears or hesitates when you shift, it could be due to low or dirty transmission fluid.
  • Transmission slips: If your vehicle slips out of gear or shifts on its own, it could be a sign that your transmission fluid needs to be changed.
  • Leaks: If you notice a reddish fluid leaking from your car, it's likely transmission fluid. This could indicate a problem with your transmission or simply that your fluid needs to be changed.


Regularly changing your transmission fluid can help prevent these problems and extend the life of your transmission. It's a relatively simple and inexpensive service that can save you hundreds or thousands of dollars in repairs down the road.

If you're due for a transmission fluid change or are experiencing any of the symptoms mentioned above, be sure to bring your vehicle to TC Auto Service for expert-level transmission service. We can help you keep your vehicle running smoothly for years to come.