FUEL AND OIL
35
These Reformulated Gasolines are acceptable for use in your
Mercury Marine engine.
GASOLINES CONTAINING ALCOHOL
If the gasoline 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 gasoline 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 Marine 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 boat's fuel system components (fuel tanks, fuel lines, and
fittings). Be aware that gasolines containing alcohol may cause
increased:
• Corrosion of metal parts
• Deterioration of rubber or plastic parts
• Fuel permeation through rubber fuel lines
• Starting and operating difficulties
!
WARNING
FIRE AND EXPLOSION HAZARD: Fuel leakage from any part
of the fuel system can be a fire and explosion hazard which can
cause serious bodily injury or death. Careful periodic inspection
of entire fuel system is mandatory, particularly after storage. All
fuel components should be inspected for leakage, softening,
hardening, swelling or corrosion. Any sign of leakage or
deterioration requires replacement before further engine
operation.
Because of possible adverse effects of alcohol in gasoline, it is
recommended that only alcohol-free gasoline be used where
possible. If only fuel containing alcohol is available, or if the
presence of alcohol is unknown, increased inspection frequency
for leaks and abnormalities is required.
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