What Is Mixed Gas for a Chainsaw: Detailed Explanation

If you have a question about “what is mixed gas for a chainsaw?” then you should read the following article. The gas that you put in a chainsaw is a mixture of gas and oil. This mixture helps to keep the engine of the chainsaw running smoothly and also helps to lubricate the chain. The ratio of gas to oil in the mixture will vary depending on the brand of chainsaw and the type of oil that you use.

What Is Mixed Gas for a Chainsaw?

A chainsaw uses a mixture of gas and oil to cut a piece of wood. It’s called a “mixed gas” because it’s mixed with mixed oil. The most popular mixed gas for a chainsaw is a mixture of oil and gas in a ratio of 40:1. In some cases, this ratio is increased to 50:1, and in some cases, it is decreased to 30:1. The manufacturer of the saw determines the correct ratio.

Mixed gases table

Which Chainsaws Take Mixed Gas?

The most common type of chainsaw that takes mixed gas is a two-cycle chainsaw. Two-cycle chainsaws require a mixture of gas and oil to run. The gas and oil mix together in the chainsaw’s gas tank and are then used to power the engine. It is important to use the correct ratio of gas to oil to prevent the engine from seizing up.


Mixed gas for a chainsaw can be dangerous if it is not used properly. The gas is highly flammable and can cause an explosion if it is not handled correctly. Always read the instructions that come with your chainsaw before adding mixed gas to the tank.

The operator manual will have specific instructions on the type of gas and oil mixture that is required for the chainsaw. Also, be sure to use the correct type of gas and oil for your chainsaw. It is also important to wear gloves and protective eyewear when handling gas and oil.

Man pours mixed gas for chainsaw

How to Mix Gas for a Chainsaw: Step-By-Step

Here’s a quick, consistent guide on how to make mixed gas for a chainsaw. First of all, you need to gather all the materials you need to mix gas for your chainsaw. This includes the gas can, oil, measuring cup, and funnel. You can also use a gas-to-oil ratio chart to help you with the mixing process.

Step 1. Pour 1 gallon of unleaded gasoline into a gas can.

Step 2. Using a measuring cup, pour 2.6 ounces of bar and chain oil into the gas can.

Step 3. Use the funnel to pour the gas and oil mixture into the chainsaw’s gas tank.

Step 4. Start the chainsaw and let it run for a few minutes to allow the mixture to reach the carburetor.

Step 5. Shut off the chainsaw and check the oil level. Add more oil if necessary.

Tips for Mixing Gas for a Chainsaw

Chainsaw chain oil is designed for a specific set of operating conditions, and mixing with fuel can reduce its performance, potentially causing chain and bar damage. Mixing chain oil with fuel also creates a sludge that clogs the fuel filter and the carburetor and increases the risk of engine failure. Here are some tips for mixing gas for a chainsaw:

  • Read the manual for your chainsaw to find the correct gas and oil mixture ratio.
  • Fill the gas tank with fresh unleaded gasoline.
  • Add two-cycle oil to the gas tank.
  • Replace the gas cap and shake the chainsaw to mix the gas and oil together.
  • To avoid premixing gas, always purchase gas cans with a two-stroke mixing tip.
  • If you must premix your gas, use a clean container and mix the gas and oil at a 50:1 ratio.
  • Shake the container vigorously to ensure the gas and oil are mixed thoroughly.
  • If your chainsaw has a two-stroke oil reservoir, add oil to this reservoir instead of premixing it with the gas.

What Is the Gas to Oil Mixture Ratio for Chain Saws?

There is no definitive answer to this question as it depends on the model and makes of the chainsaw, as well as the user’s preference. However, a good starting point is a gas to oil mixture ratio of 50:1. This means that for every 50 parts of gasoline, there is 1 part of the oil.


What happens if I put raw gas in a chainsaw?

Raw gas, or gasoline that has not been treated with a fuel stabilizer, will start to break down as soon as it is exposed to air. This will cause the gas to form a varnish that can clog the chainsaw’s carburetor and prevent the engine from starting.

How long can you keep mixed gas for a chainsaw?

You can keep mixed gas for a chainsaw for up to six months if it is kept in a cool, dry place. Also, make sure to keep it in a sealed container to prevent evaporation.

What is the best fuel mix for chainsaws?

The best fuel mix for chainsaws is a 50:1 mixture of gasoline and oil. But, depending on the brand and model of your saw, you may be able to use a 40:1 or even a 33:1 mixture. Check your saw’s owner’s manual to be sure.

What kind of oil do you mix with gas for a chain saw?

You can use any type of oil that is designed for use in two-stroke engines. However, it is important to mix the oil and gas at the correct ratio in order to keep the engine running properly.

Also read:


Now that you know how to make mixed gas for a chainsaw, you can keep your saw ready to use when you need it. Always follow the directions on the package and use the proper mix ratio. By doing so, you can be sure your chainsaw will run properly and safely. It is always a good idea to have a little extra gas and oil on hand in case you need to top off the tank. This will prevent the chainsaw from running dry, damaging the engine.

I hope you’ve found this article helpful. If you have any questions or comments, please leave them below.

Sean Chapman
Sean Chapman

“A good tool stays with you for many years and choosing carefully ensures the job is done right, your work is neat, and the tool is always a pleasure to use”

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