FUEL AND OIL
40
USING REFORMULATED (OXYGENATED) FUELS (USA
ONLY)
This type of fuel is required in certain areas of the U.S. The two
types of oxygenates used in these fuels are alcohol (Ethanol) or
Ether (MTBE or ETBE). If Ethanol is the oxygenate that is used in
the gasoline in your area, refer to the Fuel Containing Alcohol
section.
These reformulated fuels are acceptable for use in your Mercury
engine.
FUEL CONTAINING ALCOHOL
If the fuel in your area contains either methanol (methyl alcohol) or
ethanol (ethyl alcohol), you should be aware of certain adverse
effects that can occur. These adverse effects are more severe with
methanol. Increasing the percentage of alcohol in the fuel can also
worsen these adverse effects.
Some of these adverse effects are caused because the alcohol in
the fuel can absorb moisture from the air, resulting in a separation
of the water/alcohol from the gasoline in the fuel tank.
The fuel system components on your Mercury engine will
withstand up to 10% alcohol content in the gasoline. We do not
know what percentage your boat’s fuel system will withstand.
Contact your boat manufacturer for specific recommendations on
the boats fuel system components (fuel tanks, fuel lines, and
fittings).
Fuel containing alcohol may increase:
• Corrosion of metal parts.
• Deterioration of rubber or plastic parts.
• Fuel permeation through rubber fuel lines.
• Starting and operating difficulties.
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