Everything You Need to Know About RC Car Shock Oil

As an RC car enthusiast, you know that having the right parts and accessories is crucial to getting the best performance out of your vehicle. One component that plays a vital role in your RC car’s suspension system is shock oil. In this article, we will explore everything you need to know about RC car shock oil, including its definition, why it is important to use the right shock oil, and how to choose the best one for your RC car. By the end of this article, you will have a better understanding of how shock oil works and how it can enhance your RC car’s performance. So, let’s dive in!

Understanding Shock Oil

Using the right shock oil can help improve your RC car's handling and control on different terrains.

How Shock Oil Works

RC car shock oil is a type of fluid used to dampen the movement of the shock absorbers in your RC car’s suspension system. It provides resistance to the shock absorber’s piston movement, controlling the compression and rebound of the suspension. The viscosity or “weight” of the shock oil determines the speed at which the shock absorber moves, significantly impacting your RC car’s handling and performance.

Factors to Consider When Choosing Shock Oil

When selecting shock oil for your RC car, there are several factors to consider. The weight or viscosity of the shock oil is crucial. It is usually measured in “wt” or “cst,” with higher numbers indicating thicker oil. The weight of the shock oil depends on your RC car type and your personal driving preferences. Another factor to consider is the brand and quality of the shock oil. It is essential to choose a reputable brand with a proven track record of producing high-quality shock oil. Cheaper, low-quality shock oil may not perform as well and could even damage your RC car’s suspension system.

Different Types of Shock Oil

Several types of shock oil are available on the market, each with its own properties and characteristics. Silicone oil, mineral oil, and synthetic oil are the most common. Silicone oil is popular due to its consistency and stability. Mineral oil is a budget-friendly option suitable for beginners, while synthetic oil provides high performance and durability for advanced users.

Benefits of Using RC Car Shock Oil

Using the right shock oil can have significant benefits for your RC car’s suspension system. Let’s explore some of these benefits:

Improved Suspension Performance

Proper shock oil improves your RC car’s suspension performance by absorbing shocks and vibrations from the road, resulting in a smoother ride and better handling. It also prevents bottoming out, which occurs when the suspension fully compresses and hits the ground, potentially damaging your car and affecting its overall performance.

Better Handling and Control

Using the appropriate shock oil enhances your RC car’s handling and control. With the right shock oil, your car becomes more responsive to steering and braking, allowing for sharper turns and quicker stops. This is especially beneficial during races or when navigating tight corners.

Increased Durability of Shocks

Selecting the right shock oil increases the durability of your RC car’s shocks. The oil lubricates the shock absorbers, reducing friction and minimizing wear and tear. By extending the lifespan of your shocks, you can save money by avoiding costly replacements.

In summary, using the correct RC car shock oil significantly impacts your car’s performance, handling, and durability. In the next section, we will explore how to choose the right shock oil for your RC car.

How to Choose the Right RC Car Shock Oil

Choosing the right shock oil for your RC car may seem overwhelming due to the wide range of options available. To simplify the process, consider these three key factors:

Weight and Viscosity

The weight and viscosity of the shock oil are critical factors to consider. Shock oil comes in various weights, ranging from 10wt to 100wt or more. The weight determines the thickness of the oil, with higher numbers representing thicker oil. Viscosity refers to how quickly the oil flows through the small holes in the shock piston. Thicker oil results in slower rebound and compression, while thinner oil provides a faster response.

Brand and Quality

The brand and quality of the shock oil greatly influence your RC car’s suspension system’s performance. It is essential to choose a reputable brand known for manufacturing high-quality shock oil. The quality of the oil ensures consistency and reliability, crucial for optimal performance and durability.

Compatibility with Your RC Car’s Shocks

Lastly, choose a shock oil that is compatible with your RC car’s shocks. Different types of shocks may require specific oil types, and using the wrong oil can lead to performance issues or damage to your car’s suspension system. Consult your RC car’s manual or seek advice from a knowledgeable RC car expert to determine the best-suited oil type for your shock system.

By considering the weight and viscosity, brand and quality, and compatibility with your RC car’s shocks, you can choose the right shock oil for your car’s suspension system and achieve optimal performance.

How to Change RC Car Shock Oil

If you notice that your RC car’s suspension isn’t performing as well as before, it may be time to change the shock oil. Changing shock oil is a straightforward process that can improve your car’s handling and control. Here’s what you’ll need and the step-by-step process:

Tools and Materials Needed

  • Shock oil
  • Shock pliers
  • Screwdriver
  • Cleaning cloth
  • Container for old oil

Step-by-Step Process for Changing Shock Oil

  1. Remove the shocks from your RC car and use the shock pliers to compress them.
  2. Unscrew the top of each shock and carefully pour out the old oil into a container.
  3. Clean the shock with a cloth to remove any residue from the old oil.
  4. Fill the shock with the new oil, ensuring you use the proper weight and viscosity for your RC car.
  5. Reattach the top of the shock and repeat the process for the remaining shocks.
  6. Once all shocks are filled with new oil, reinstall them on your RC car.

Tips for Maintaining Your RC Car’s Shocks

  • Regularly check your shocks for leaks or damage.
  • Clean your shocks after each use to prevent dirt and debris buildup.
  • Use the appropriate weight and viscosity of shock oil for your RC car.
  • Change your shock oil regularly to maintain optimal performance.

By following these simple steps and tips, you can enhance your RC car’s suspension system’s performance and ensure smooth operation. Remember to check your shocks regularly and change the oil when necessary for the longevity of your RC car.


In conclusion, using the right shock oil is crucial for maximizing the performance of your RC car’s suspension system. By understanding how shock oil works and its benefits, as well as how to choose and change it, you can ensure that your RC car operates at its best. Consider factors like weight, viscosity, brand, and compatibility when selecting shock oil, and follow the proper procedures for changing it. By doing so, you can enjoy improved handling, control, and durability of your RC car’s shocks.

At Auto Oil And Fluid, we strive to provide useful tips and tricks to help you get the most out of your automotive passion. We hope this article has been informative and helpful in your quest for RC car performance. So, give your RC car the best shot at success by using the right shock oil for optimal results.

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