E10 versus E15
Marine engines are only certified to run on fuel blends of E10 or lower; anything higher poses serious problems, including performance issues like stalling, corrosion leading to oil or fuel leaks, increased emissions and damaged valves, rubber fuel lines and gaskets. Many consumers are unaware of these dangers, posing a real threat to the safety of 142 million American boaters and the products the industry supplies.
The concerns of boaters are similar to the concerns of motorcyclists, snowmobilers, classic car enthusiasts, and any user of small engines like chainsaws and lawnmowers.
Boaters want a stable supply of E10 and more availability of ethanol free fuel-not harmful E15 blends that damage their engines and boats.
NMMA has a page targeted to ethanol education and advocacy.
Look Before Your Pump
Look Before You Pump is an educational campaign created by the Outdoor Power Equipment Institute to educate consumers about ethanol and E-15 and its potentially damaging effects on small engines.
The group offers many FREE ethanol educational resources. You can find more information here.