Ethanol group warns against use of E15 in boats but says E10 better than gasoline

The ethanol promotion group of the US, known as the Renewable Fuels Association, warned against the use of gasoline mixes containing E15 fuel in marine engines but said that E10 is fine.

“While E10 has been a part of the fuel supply for decades, E15 is relatively new to the market. Until further testing can be completed, E15 and other higher-level ethanol blends are not approved for use in boat engines,” said Bob Dinneen, president and CEO of the Renewable Fuels Association.

However, E10 can be better, it added. 

“Indeed, E10 gives boaters the extra octane boost they need to pull skiers, tubers, or wake boarders while also keeping the water clean by reducing harmful exhaust emissions.” Dinneen added.