Nitro Fuel for RC Cars: How Much to Use?

Nitro Fuel for RC Cars: How Much to Use?

RC cars have gained popularity as a fascinating hobby among enthusiasts of all ages. These cars can achieve break-neck speeds while delivering adrenaline-pumping thrills. Nitro fuel is the preferred choice for powering these cars as it offers a combination of raw power and nuanced control. Compared to electric-powered RC cars, nitro-fuelled cars offer faster acceleration and top speeds. The right fuel-to-oil ratio is an important consideration when running an RC car, as it directly affects the car’s performance and longevity. In this article, we’ll discuss how much nitro fuel to use in an RC car to get the best results. We’ll also provide some tips for choosing the right fuel-to-oil ratio and highlight some best practices for using nitro fuel in your RC car. Whether you’re a seasoned RC car enthusiast or a beginner, this article will help you get the most out of your nitro-fuelled car.

Understanding Nitro Fuel

Nitro fuel is a unique blend of chemicals that makes it an ideal source of power for RC cars. Here are some key details about nitro fuel that will help you understand its properties and how it works:

  • Nitro fuel is a mixture of methanol, nitromethane, and oil.
  • Methanol is the primary ingredient and provides the majority of the fuel’s energy.
  • Nitromethane is added to provide extra power and better performance.
  • The type of oil used in nitro fuel varies, but castor oil is a popular choice due to its lubricating properties.
  • Nitro fuels come in different percentages of nitromethane content, ranging from 10% to 40%. A higher percentage of nitromethane results in better performance but requires a greater fuel-to-oil ratio to avoid damaging the engine.

When purchasing nitro fuel, it’s important to choose one that is designed for your particular car’s engine. Additionally, opting for a high-quality fuel can significantly improve your car’s performance and prolong the life of your engine. Some popular brands of nitro fuel for RC cars are Traxxas Top Fuel, O’Donnell Racing Fuel, and PowerMaster Nitro Fuel. Always follow the manufacturer’s recommendations regarding fuel-to-oil ratios to achieve the best results.

What is nitro fuel made of?

Nitro fuel, also known as nitromethane, is a type of fuel used in RC cars, boats, and airplanes. It is made up of the following ingredients:

  • Nitromethane
  • Methanol
  • Oil

Nitromethane is the primary ingredient and makes up around 90% of the fuel mixture. Methanol is added to provide additional energy, while oil is used to lubricate the engine.

If you’re interested in learning more about nitro fuel and how it works, check out RC Car Action and RC Groups for tips, tricks, and product recommendations.

Fuel-to-Oil Ratio

The fuel-to-oil ratio refers to the amount of nitro fuel and oil in a given mixture of fuel. The optimal fuel-to-oil ratio for your RC car will depend on various factors, including the engine type and the nitromethane content of the fuel. Here are some key details to keep in mind regarding fuel-to-oil ratios:

Nitro Fuel Percentage Fuel-to-Oil Ratio
10% 16:1
20% 12:1
30% 9:1
40% 7:1

Some additional things to keep in mind include:

  • Too much oil can result in poor performance and can lead to visible exhaust smoke.
  • Too little oil can cause the engine to seize up and result in costly damage.
  • Mixing the fuel and oil thoroughly is critical to ensuring consistent performance.
  • Always check the manufacturer’s recommendations and follow them closely for the best results.

By finding the right fuel-to-oil ratio for your RC car, you can improve its performance, extend its life, and have a more enjoyable experience on the road.

Can you add oil to nitro fuel?

No, it’s not recommended to add oil to nitro fuel because it can change the chemical composition of the fuel and may affect performance. Nitro fuel already contains the necessary lubricants that are required to protect the engine parts. It’s essential to use the recommended fuel for your nitro-powered RC car to ensure optimum performance and longevity.

If you’re looking for more information on nitro-powered RC cars or fuel options, check out websites such as RC Planet or Tower Hobbies, where you can find a variety of products, guides, and helpful tips.

How Much Nitro Fuel to Use

The amount of nitro fuel you should use for your RC car will depend on various factors, including the fuel-to-oil ratio and the size of your fuel tank. Here are some important points to keep in mind when determining how much nitro fuel to use:

  • Always check the fuel tank capacity and ensure that you don’t exceed it, as overfilling can cause fuel leaks and damage to the engine.
  • Measure your fuel carefully using a fuel bottle with a graduated cylinder or use a fuel pump to avoid spilling and overpouring.
  • To calculate the amount of fuel you need for your RC car, use this formula: Fuel Capacity (in cc) / Fuel-to-Oil Ratio = Amount of Nitro Fuel (in cc).
  • Consult the manufacturer’s recommendations to determine the optimal amount of nitro fuel for your car.

If you’re new to RC cars, it’s normal to feel overwhelmed by the process of determining the right fuel-to-oil ratio and amount of nitro fuel to use. However, there are plenty of helpful resources available online to guide you through the process. You can also experiment with different ratios and amounts until you find what works best for your specific RC car and driving style.

Can I use petrol on in nitro RC car?

No, you cannot use petrol in a nitro RC car. Nitro RC cars require nitro fuel, also known as nitromethane, to operate correctly. Using petrol in a nitro RC car can cause damage to the engine and other mechanical components. It’s essential to read the manufacturer’s instructions before operating a nitro RC car to ensure that you use the right fuel.

If you are interested in purchasing nitro RC cars or accessories, websites like and offer a wide range of options to choose from. Always make sure to check the specifications of the products before purchasing to ensure that they are compatible with your RC car.

Tips for Using Nitro Fuel in RC Cars

Here are some tips to help you use nitro fuel in your RC car safely and effectively:

  • Use high-quality fuel from reputable brands to ensure optimal performance and minimize engine wear and tear.
  • Store your fuel in a cool, dry place away from direct sunlight and heat to prolong its shelf life.
  • Never mix different types of fuel or oil, as this can cause complications and affect your car’s performance.
  • Use a funnel or fuel bottle to fill your car’s tank to avoid spills and wastage.
  • After using your RC car, empty the fuel tank and run the engine until it stops to prevent the fuel from evaporating and causing blockages or fuel system damage.

If you’re looking for more detailed information on nitro fuel for RC cars, check out the websites of reputable RC car manufacturers and hobby shops. You can also join online forums or social media groups dedicated to RC cars, where you can connect with other enthusiasts and learn from their experiences. With the right know-how and guidance, you can enjoy the thrill of driving your RC car with optimal performance and efficiency.

How do you store RC fuel?

When it comes to storing RC fuel, it’s important to take some precautions to ensure its longevity and prevent any accidents. Here are some tips:

  • Store fuel in a cool, dry, and well-ventilated location away from direct sunlight.
  • Keep the fuel container tightly closed to prevent moisture from entering.
  • Use a storage container specifically designed for fuel, such as a metal or plastic jerry can.
  • Label the container with the fuel type and the date it was purchased.
  • Avoid storing fuel near heat sources or open flames, and keep it away from children and pets.

Remember to always follow the manufacturer’s recommendations for fuel storage and handling. If you’re unsure, consult the product manual or the manufacturer’s website for more information.


In conclusion, using the right amount of nitro fuel is essential for optimal performance of your RC car. Factors such as the fuel-to-oil ratio, engine size, and car type should be considered when determining how much fuel to use. With the correct amount of nitro fuel, you can maximize the car’s speed and performance while minimizing wear and tear.

To ensure peak performance, it’s vital to use high-quality nitro fuel from reputable brands and store your fuel correctly. Always follow the guidelines provided by your RC car’s manufacturer regarding fuel and oil ratios, and avoid mixing different types of fuel or oil.

We hope this article has provided you with a better understanding of how much nitro fuel to use in your RC car. By following the tips and recommendations discussed above, you can enjoy a long and fulfilling experience with your RC car.