
74
WARNING
FIRE AND EXPLOSION HAZARD: Fuel leakage from any part
of fuel system can be a fire and explosion hazard which can
cause serious bodily injury or death. Careful periodic inspec-
tion of entire fuel system is mandatory, particularly after stor-
age. All fuel components including fuel tanks, whether plastic
metal or fiberglass, fuel lines, fittings, fuel filters and carbure-
tors/fuel injection components should be inspected for leak-
age, 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.
IMPORTANT: When operating a Mercury MerCruiser engine on
gasoline containing alcohol, storage of gasoline in the fuel tank
for long periods should be avoided. Long periods of storage,
common to boats, create unique problems. In cars
alcohol-blend fuels normally are consumed before they can
absorb enough moisture to cause trouble, but boats often sit
idle long enough for phase separation to take place. In addition,
internal corrosion may take place during storage if alcohol has
washed protective oil films from internal components.
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