Indmar Standard 360 Operator's Manual page 24

SECTION TWO
fuel to 89 octane or to raise 89 octane to 91.
When using fuel containing alcohol, we recommend purchasing
fuel in smaller quantities that will be consumed during a weekend
of boating. Fuel degrades pretty quickly and the engine operates
better on fresh fuel. Use fuel stabilizer to treat any remaining
fuel to reduce the degradation. Only use fuel stabilizer products
displaying the following mark on the label.
Buy fuel from a busy station that sells lots of fuel. There will be a
better chance that the fuel will be fresh.
Indmar recommends purchasing fuel from a supplier that
advertises that the fuel meets "TOP TIER" specifications. This
fuel has additives and detergents that will reduce the buildup
of deposits in the engine. For a current list of gasoline retailers
supplying TOP TIER gasoline, go to www.toptiergas.com and click
on LICENSED BRANDS.
Over time, oxidation of gasoline can form a buildup of harmful
solids called gums. Water and impurities in the fuel system can
cause corrosion. To stabilize the fuel and prevent oxidation, gum
buildup, and corrosion throughout the boating season, add an
NMMA certified gasoline additive product to the fuel tank after
each fill-up. Only use products displaying the following mark on the
label.
Don't run out of fuel! The fuel pump that supplies the high-
pressure fuel required by the engine is cooled and lubricated by
the fuel that is being pumped. Any time the boat runs out of fuel,
the pump is not being cooled and lubricated properly and sustains
a certain amount of damage. If the fuel "runs dry" a number of
times, the damage to the pump will be cumulative, resulting in an
expensive fuel pump failure.
If an engine fails and it is determined that the failure was due to
improper fuel with too low of an octane rating, too much alcohol,
or both, the failure will not be covered by the Indmar Limited
Warranty.
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