According to NSW Maritime there is growing concern among boat operators about using ethanol mix fuels in their boats.

Nowra Marine service manager Adrian McGlynn shared the concern.

“We tell people to steer away from ethanol mix fuels,” he said.

“Ethanol affects the boat’s performance and you won’t get full engine capacity.”

NSW Maritime has identified a number of risks.

Ethanol can affect some fibreglass fuel tanks because of its potential to act as a solvent.

It can also affect older fuel lines, seals and gaskets.

NSW Maritime General Manager Recreational Boating and Regional Services Brett Moore said the fuel could separate into the petrol and ethanol components if condensation formed in the tank or where the fuel is stored for extended periods.

“Use of an inappropriate fuel can result in damage to the engine and boat components that may require repair or replacement,” Mr Moore said.

“Fuels with ethanol can attack some fuel-system components, such as tanks and lines, if they are not made from acceptable ethanol-acceptable materials.

“The ethanol can soften some fibreglass or rubber components or can leach resins from other materials from rubber components which can foul filters, carburettors or injectors.”

Mr Moore said whilst some boat owners have tried to do the right thing in their quest to reduce their carbon footprint by choosing the greener option, NSW Maritime advises boat owners to check with their engine and boat dealer about the appropriate fuel choice.