How to Mix Two Stroke Fuel

Two-stroke engines are lighter and less expensive to make than four-stroke engines. Four-stroke engines fire only every other revolution while two-stroke engines fire every revolution, making them much more powerful for their size. That power, however, comes at a price. Two-stroke engines use more gasoline and require a specific oil to gas ratio. Mixing two-stroke fuel properly is important to keep the engine lubricated and prevent excessive wear and tear.

Instructions

Difficulty: Moderate

Things You’ll Need:

• Measuring cup
• Two-stroke oil
• Gasoline
• Empty gas can

1. Determine if your engine is a two-stroke or a four-stroke. Check the gas tank on your lawnmower or the owner's manual to determine what type of engine you have.
2. Read the label of your two-stroke oil. Follow the directions on the package to ensure the right mix.
3. Measure and pour the gasoline in to the empty gas can.
4. Add four ounces of two-stroke oil per each gallon of gas.
5. Replace the cap on the gas can and shake the oil and gas to mix. Add fuel to your engine.

Tips & Warnings

• You can mix 3.2 ounces of oil per gallon of gas instead of 4 ounces to run leaner. However, less lubrication from the oil can cause faster deterioration of your engine.
• Quickly wipe up any spilled oil or gas.
• Oil and gas are extremely toxic. Make sure to tightly seal any leftover oil and gas, and store securely out of the reach of children and pets.
• Two-stroke engines produce a lot of pollution. Ensuring you have the correct fuel mix increases the efficiency of the engine and reduces emissions.

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