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The importance of changing your CVT fluid

Published on Dec 26, 2022 by Boulder Service Team

What is a CVT?

The Continuously Variable Transmission (CVT) is a type of automatic transmission that has become increasingly popular in today’s vehicles. Unlike traditional automatic transmissions, the CVT uses a belt and pulley system to provide an infinite number of gear ratios, allowing for smooth and efficient acceleration. With this technology, however, also comes the responsibility to properly maintain the CVT in order to ensure that it continues to provide the same smooth and efficient performance.

What Makes CVT Unique?

Unlike traditional automatic transmissions, CVTs provide infinite gear ratios due to the use of a sophisticated belt and pulley system. This unique mechanism allows for seamless transitions between speeds, ensuring a more refined and fuel-efficient ride. But with this novel technology comes the added responsibility of adequate maintenance to guarantee continuous top-notch performance.

 

The Role of Transmission Fluid in a CVT

The transmission fluid in a CVT is more than just a lubricant.

Lubrication and Cooling: Key Functions of Transmission Fluid

One of the most important aspects of CVT maintenance is regularly changing the CVT transmission fluid. The transmission fluid in a CVT is responsible for lubricating the moving parts of the transmission and keeping it cool. Over time, transmission fluid can become contaminated or lose its viscosity, leading to decreased performance and even transmission failure. As a result, it is important to keep the transmission fluid clean and at the correct level.

 

The Impact of Neglected Transmission Fluid

When transmission fluid becomes contaminated or loses its viscosity, the performance of your transmission declines. Worst case scenario, this could even lead to transmission failure. Therefore, to keep your transmission in top shape and maintain optimal vehicle performance, it's crucial to keep the transmission fluid clean and at the right level.

 

Regularly changing the CVT transmission fluid is the best way to ensure that it is in good condition and performing optimally. Most manufacturers recommend changing the CVT transmission fluid every 30,000-60,000 miles, depending on the make and model of the vehicle. This interval is designed to ensure that the fluid is in good condition and does not cause any damage to the transmission. However, it is important to note that some vehicles may require more frequent fluid changes, depending on the type of driving and the age of the vehicle. Some manufacturers may even recommend a transmission fluid flush rather than a simple fluid change.

 

Changing Your CVT Transmission Fluid: The Golden Rule of Maintenance

Changing your CVT transmission fluid regularly is the cornerstone of CVT maintenance.

Optimal Fluid Change Intervals

Most manufacturers recommend changing the CVT transmission fluid every 30,000 to 60,000 miles. This interval is designed to ensure that the fluid is in good condition and prevents potential transmission damage. However, this interval may vary depending on the type of vehicle, your driving style, and the vehicle's age. Some manufacturers may recommend a more frequent fluid change, or even a complete transmission fluid flush.

Choosing the Right Fluid

When changing the CVT transmission fluid, it is important to use the correct type of fluid. Different vehicles require different types of transmission fluid, so it is important to consult the owner’s manual or a certified mechanic to determine the correct type of fluid for your vehicle.

The Dangers of Incorrect Fluid Levels

It is also important to use the correct amount of fluid when changing the CVT transmission fluid. Too much or too little fluid can have an adverse effect on the transmission and lead to costly repairs.