Today, fuel blended with 10 percent ethanol (E10) comprises more than 95 percent of the gasoline sold nationwide. Regardless of make and model, most of the 12 million recreational boats in the United States are approved to operate on E10. Kentucky Corn is a proud sponsor of the 2016 Crappie Masters Championship, May 13-14, Kentucky Lake and Lake Barkley. 

Crappie Masters Partnership 

MYTH: It is unsafe to use ethanol in my lawn mower/weed eater/small engine.


Reality: All small engine manufacturers in the United States approve the use of E10 (10 percent ethanol, 90 percent gasoline) in their equipment.



MYTH: Ethanol deteriorates fuel lines.


Reality: According to Oklahoma State University, highly aromatic additives, like benzene used to increase octane, are more corrosive to plastic components than ethanol.



MYTH: E10 goes bad in my outdoor power equipment.


Reality: Today’s fuel (ethanol enriched or not) has a short shelf life. Many manufacturers recommend storing fuel no longer than 30-60 days unless a stabilizer is used. After this point, gasoline starts producing gums and varnish in your fuel system, possibly harming the engine. Fuel containers should also be sealed to improve longevity.

Ethanol in Watercrafts: 

Myth v. Reality

Additional Links

Crappie Masters

Ethanol and Marine Use, Renewable Fuels Association

Ethanol Gasoline Blends and Small Engines, Oklahoma State University

Learn more about American Ethanol and Crappie Masters.

Crappie Masters Television Show is available on the Pursuit Channel for Dish Network and Directv customers. Check with your service provider for a full schedule.

Ethanol in Your Watercraft

Ethanol & Small Engines: 

Myth v. Reality

MYTH: Ethanol adds water to fuel and causes phase separation.


Reality: Ethanol is anhydrous. E10 fuel cannot absorb enough moisture from the air to cause phase separation (separation into two liquid phases). If water is allowed directly in the tank, phase separation can occur in both straight gasoline and ethanol blends as stated in an Oklahoma State University Study on Ethanol Gasoline Blends and Small Engines.



MYTH: Ethanol reduces the performance of my boat.


Reality: Ethanol provides high octane for exceptional engine performance and reduced emissions. Need proof? The National Boat Racing Association (NBRA) uses E10 exclusively for all their races.



MYTH: Ethanol doesn’t work with two-stroke motors.


Reality: Internal testing must be completed before a manufacturer recommends using a specific fuel blend. Recognizing the fuel’s growing popularity, all small engine manufacturers have long permitted the use of E10. See your manual for more information.

5 Facts You Should Know about Ethanol in Small Engines

  1. Ethanol burns cleaner and cooler than gasoline.
  2. Benzene used to increase octane in straight gasoline is more corrosive to more plastics than ethanol.
  3. An E10 blend cannot absorb enough moisture out of the air to cause phase separation.
  4. Gasoline varnishes and should not be stored for more than 60 days without stabilizer chemicals.
  5. Water separation is a problem regardless of fuel type and is more likely to occur in straight gasoline than in an ethanol blend.


Learn more about ethanol and small engines in the following video from Fueling Truth:

Growing opportunities for Kentucky's corn farmers in a changing industry.