Unlocking the Benefits of Subaru Transmission Fluid: Everything You Need to Know About Proper Maintenance and Service

If you own a Subaru, then you know that it is a reliable car that requires proper maintenance to keep it running smoothly. One of the essential components of your car that should not be overlooked is your transmission. A fully functioning transmission system is critical for the performance of your vehicle, and using the correct transmission fluid is crucial.

In this article, we will delve into Subaru transmission fluid, discussing everything you need to know about proper maintenance and service. From what Subaru transmission fluid is, why it’s important to use special transmission fluid, how often to change the fluid, and how to do it, we will provide a detailed guide on this crucial topic.

What is Subaru Transmission Fluid?

Subaru transmission fluid is a specialized type of lubricant that is designed to meet the specific requirements of Subaru vehicles. It is a synthetic transmission fluid specifically formulated to maintain the Subaru transmission system’s integrity, providing the necessary protection against wear and tear. Using the recommended transmission fluid can ensure that your car’s power transmission system operates smoothly, quietly, and efficiently.

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Why is it Important to Use Special Transmission Fluid in a Subaru?

Subaru transmission fluid is uniquely designed to meet the specific requirements of Subaru vehicles. It has been tested and approved by Subaru engineers to provide optimal performance in transmission systems. This specialized transmission fluid is crucial in maintaining the longevity of the transmission system, ensuring that it operates correctly and smoothly.

Using the right transmission fluid in your Subaru can also improve your car’s fuel economy and reduce wear and tear on the engine. Always check the owner’s manual for the recommended transmission fluid for your car, and make sure to use it to maintain optimal performance.

How Often Should a Subaru’s Transmission Fluid be Changed?

Subaru suggests having the transmission fluid changed every 30,000 to 60,000 miles, depending on the model. However, your driving conditions may impact the frequency; for instance, if you regularly drive on steep terrain or in extreme weather conditions, the transmission fluid may need to be changed more frequently.

It is recommended that you check the transmission fluid level at least once a year or before long trips. If you notice that the fluid is discolored or dark, it may be time for a replacement.

What Happens if Subaru Transmission Fluid is not Changed Regularly?

If the transmission fluid is not changed regularly, it can impact the transmission system’s performance and longevity. Over time, the fluid can break down, becoming contaminated with dirt and debris. The transmission fluid’s protective properties will decrease, leading to increased wear and tear on the transmission system, which ultimately affects your vehicle’s performance and reliability.

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How to Properly Change Subaru Transmission Fluid

Changing the transmission fluid in your Subaru should be left to the professionals. An authorized Subaru dealer or a certified Subaru technician is recommended for the job. They will have the necessary tools, knowledge, and experience to change the fluid properly, ensuring the optimal performance of the transmission system.

Before taking your car to a Subaru dealership or certified technician, make sure to check your owner’s manual to know when you need to change the transmission fluid.

The Cost Associated with Changing Subaru Transmission Fluid

The cost of changing the Subaru transmission fluid varies by dealership or certified technician; on average, it can cost between $200-$300. The cost of the fluid itself is relatively affordable; it’s the labor that drives the cost higher. Compared to the potential repercussions to your car’s transmission system and overall performance, it’s a worthwhile investment.

The Potential Risks of Using Non-Subaru Transmission Fluid for a Subaru

Many drivers believe that using a non-Subaru transmission fluid will work just as well. However, using the wrong transmission fluid can cause damage to the transmission system. Transmission fluids have different viscosity and composition levels, making it essential to use the right one for your car’s transmission system.

Using the wrong fluid can cause the transmission system to break down, leading to costly repairs and, in the worst-case scenario, a complete transmission system failure.


Q: What is Subaru transmission fluid?

A: Subaru transmission fluid is a synthetic lubricant designed to meet the specific requirements of Subaru vehicles’ transmission systems.

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Q: How often should I change the transmission fluid in my Subaru?

A: It is recommended to have the transmission fluid changed every 30,000 to 60,000 miles, depending on the model.

Q: Can I use any transmission fluid in my Subaru?

A: No, it is not recommended to use any transmission fluid in a Subaru. Always check your car owner’s manual for the recommended transmission fluid for your car.

Q: Can I change the transmission fluid myself?

A: It is recommended that you have a professional Subaru dealership or certified technician change your car’s transmission fluid.


Using the right transmission fluid and maintaining your Subaru’s transmission system is essential for your car’s optimal performance and longevity. By following the manufacturer’s recommended guidelines and having your Subaru serviced by authorized Subaru dealerships or certified technicians, you will ensure that your car’s transmission system remains in the best possible condition. Remember, using the right transmission fluid may seem like a small thing, but it can have a significant impact on your car’s performance.

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Alton Brobst

As a longtime Subaru enthusiast, Alton brings a wealth of knowledge and experience to our blog. From his early days of tinkering with engines to his current role as a certified Subaru technician, Alton has seen it all when it comes to Subarus. When he's not working on cars, he enjoys hiking and exploring the great outdoors.

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