PURSUIT C 260, Owner'S Manual, Page: 31 / 124

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The age of gasoline can affect engine performance. Chemical changes occur as the gasoline ages that can cause
deposits and varnish in the fuel system as well as reduce the octane rating of the fuel. Severely degraded fuel
can damage the engine and boat fuel tank and lines. Therefore, if your boat is not being run enough to require
at least one full tank of fresh fuel a month, a fuel stabilizer should be added to the gasoline to protect the fuel
from degradation. Your dealer or the engine manufacturer can provide additional information on fuel
degradation and fuel stabilizers recommended for your engine.
Avoid using fuels with alcohol additives. Gasoline that is an alcohol blend will absorb moisture from the air
which can reach such concentrations that "phase separation" can occur whereby the water and alcohol mixture
becomes heavy enough to settle out of the gasoline to the bottom of the tank. Since the fuel pick-up tube is
very near the bottom of the tank, phase separation can cause the engine to run very poorly or not at all. This
condition is more severe with methyl alcohol and will worsen as the alcohol content increases. Water or a
jelly like substance in the fuel filters is an indication of phase separation from the use of alcohol blended fuels.
Improper marina fuel storage techniques, limited boat usage, etc. can cause the fuel to become contaminated.
Periodically, it may be necessary to pump accumulating water and contaminated fuel from the bottom of the
fuel tanks. If the fuel system on your boat becomes contaminated, contact your dealer or marina for assistance.
Please contact your engine manufacturer for additional information regarding fuels and additives.
Do not allow the boat to sit unused for an extended period with the fuel tanks less than full. Changes
in temperature and weather conditions can cause condensation in fuel tanks that are less than 3/4 full.
AFTER THE FILTER ELEMENT HAS BEEN CHANGED, PRIME THE FUEL SYSTEM AND
CHECK ALL FITTINGS FOR LEAKS BEFORE AND AFTER STARTING THE ENGINES.