Regulations and Guidelines
Vessel manufacturer, and/or installer of an EPA
certified outboard, must meet minimum specifications for boat fuel systems established by:
• U.S. Environmental Protection Agency (EPA)
– 40 CFR 1045.112
– 40 CFR 1060
• U.S. Coast Guard (USCG)
– 33 CFR 183
• American Boat & Yacht Council (ABYC)
– Standard H-24
– Standard H-25.
Portable Fuel Tanks
If engine is equipped with a quick-disconnect fuel hose, you MUST disconnect the fuel hose from the engine and the fuel tank
to prevent fuel leaks:
• Whenever the engine is NOT being used
• Whenever the engine is being trailered
• Whenever the engine is in storage.
A small amount of fuel may be released when the fuel connector
is disonnected.
Store portable fuel tanks in well-ventilated areas, away from heat sources and open flames. Close the vent screw of the fuel tank cap,
if equipped, to prevent escape of fuel or fuel vapors which could accidentally ignite.
Do not allow disconnected fuel hoses to leak fuel.
Do not use portable fuel tanks for outboards larger than 115 HP. Inadequate
fuel flow to high horsepower outboards can result in serious powerhead damage.
Section 2
Fuel Requirements
Gasoline is extremely flammable and highly explosive under certain conditions.
Improper handling of fuel could result in property damage, serious injury or death.
Always turn off the outboard before fueling.
Never permit anyone other than an adult to refill the fuel tank.
Do not fill the fuel tank all the way to the top or fuel may overflow when it expands due to heating by the sun.
Remove portable fuel tanks from the boat before fueling.
Always wipe off any fuel spillage.
Do not smoke, allow open flames or sparks, or use electrical devices such as cellular phones in the vicinity of a fuel leak or while fueling
Minimum Octane
Evinrude/Johnson outboards are certified to operate on unleaded automotive gasoline with an octane rating equal to or higher than:
- 87 (R+M)/2 AKI, or
- 90 RON
Use unleaded gasoline that contains methyl tertiary butyl ether (MTBE) ONLY if the MTBE con tent does not exceed 15% by volume.
Use alcohol-extended fuels ONLY if the alcohol content does not exceed:
- 10% ethanol by volume
- 5% methanol with 5% cosolvents by volume
When using alcohol-extended fuels, be aware of the following:
- The boat’s fuel system may have different requirements regarding the use of alcohol fuels. Refer to the boat’s owner guide.
- Alcohol attracts and holds moisture that can cause corrosion of metallic parts in the fuel system.
- Alcohol blended fuel can cause engine performance problems.
- All parts of the fuel system should be inspected frequently and replaced if signs of deterioration or fuel leakage are found. Inspect at least annually.
IMPORTANT: Always use fresh gasoline. Gasoline will oxidize, resulting in loss of octane and volatile compounds, as well as the production of gum and varnish deposits which can damage the out board.
Additives
IMPORTANT: The only fuel additives approved for use in Evinrude outboards are 2+4® fuel conditioner and Evinrude/Johnson Fuel System
Cleaner. Use of other fuel additives can result in poor performance or engine damage.
Evinrude/Johnson 2+4 Fuel Conditioner will help prevent gum and varnish deposits from forming in fuel system components and will remove
moisture from the fuel system. It can be used continuously and should be used during any period
when the outboard is not being operated on a regular basis. Its use will reduce spark plug fouling, fuel system icing, and fuel system component deterioration.
Evinrude/Johnson Fuel System Cleaner will help keep fuel injectors in optimal operating condition
