When choosing fuel for your outdoor power equipment, it is important to avoid fuel containing ethanol. Ethanol-free fuel is recommended for outdoor power equipment due to the negative impact ethanol can have on small engines. This guide from B & M Lawn & Garden aims to answer all your questions about ethanol, so you can choose the best fuel for your equipment.

What Is Ethanol?

Ethanol is a pure alcohol derived from organic matter. Here in the United States, it is typically made from fermented corn starch. This agricultural byproduct is used as a renewable biofuel and a supplement to gasoline. Using gasoline mixed with ethanol cuts down on carbon emissions and reduces the consumption of fossil fuels. However, while ethanol can be safely used in most modern vehicles, it is not recommended for small engines.

Why Is Ethanol Bad for Small Engines?

Fuel with 10% ethanol (also known as E10) has been approved for some small engines. That said, we still recommend choosing an ethanol-free fuel for the following reasons:

  • Ethanol fuel burns hotter than standard gasoline, causing small engines to run hotter and wear out faster.
  • Ethanol fuel absorbs more water than standard gasoline. This can cause the fuel to resist igniting in the carburetor, leading to starting issues.
  • When using blended (two-stroke) fuel, the gas and ethanol may separate in your fuel tank over time. The oil will stay bonded to the gasoline, but not the ethanol. This may cause your small engine to run on ethanol without any oil to lubricate the engine.
  • Ethanol is a powerful solvent that can dissolve rubber, plastic, fiberglass, and other materials that may be present in your small engine.
  • The use of ethanol fuel may void the warranty on your small engine.

Choosing ethanol-free fuel ensures the optimal performance and longevity of your outdoor power equipment. If you have any further questions about small engines, please feel free to contact B & M Lawn & Garden. B & M Lawn & Garden is your local equipment dealer in Anaheim, CA, serving Long Beach and San Bernardino. We appreciate your business!