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To help guard against damage, avoid the stor-
age or handling of gear near the fuel lines, fit-
tings and tanks.
I - 2
FUEL STANDARDS
Be cautious when using gasoline which contains alco-
hol.
To conform to Federal Air Quality Standards, the
petroleum industry reduced the amount of
tetraethyl lead in gasoline. Alcohol is being
blended with gasoline to help restore the octane
rating lost when the lead was removed. While
blending alcohol with gasoline increases the oc-
tane level of the fuel, it can also create certain
safety and performance related problems for
boaters.
A. Problems With Alcohol In Gasoline
Below is a list of problems which may be experienced
when using blended gasoline.
1. Premature deterioration of fuel system components
may occur. Alcohol will attack rubber fuel hoses,
fuel tanks, fuel filters, fuel pumps and rubber gas-
kets. This deterioration will lead to fuel system leak-
age.
2. Phase separation of fuel will cause contamination.
Water which accumulates in the tank through con-
tamination or condensation will be absorbed by the
alcohol. This water-heavy alcohol will settle at the
bottom of the tank. This phase separation will lead
to fuel tank corrosion. This may also result in a lean
mixture to the carburetor and cause engine stalling
or possible engine damage.
The use of alcohol additives in gasoline has become more
widespread. Regulations on public notification of the ex-
istence of additives is currently controlled by the Envi-
ronmental Protection Agency (EPA). Some states do
require that gasoline pumps display information on addi-
tives (especially alcohol). If alcohol content is not posted,
ask and avoid using fuel containing alcohol if possible.
Vista 248/268 Owner's Manual
03/00
B. Recommendations
Assume blended gasoline is being used and follow these
recommendations below.
1. Inspect fuel hoses often. A deteriorated hose con-
taining alcohol blended gasoline will normally be soft
and swollen. A deteriorating hose containing no
fuel will normally be hard and brittle. In both cases
the hose should be replaced.
2. Ventilate the engine compartment before starting
the engine(s). Operate the engine compartment
blower for four (4) minutes. Then, prior to starting
the engine(s), check the bilge area for the scent of
gasoline fumes; DO NOT start the engines if the
odor of gasoline is detected.
3. Frequently inspect the fuel system fittings. Inspect
the fuel tank, pump and filter for signs of leaks or
corrosion. Visually inspect for deteriorating metal
fittings at the fuel hose connections.
4. If areas are found within the fuel system that ap-
pear questionable, have a qualified marine techni-
cian inspect the system. Have those fuel system
components that do not pass inspection replaced.
A thorough fuel system examination should be made
by an experienced marine technician at least once
a year.
I - 3
FUELING INSTRUCTIONS
1. Avoid fueling at night except in emergencies.
2. When moored at fueling pier:
a. Do not smoke, strike matches, or throw
switches.
b. Stop all engines, motors, fans, and devices that
could produce sparks.
c. Put out all lights and galley stove.
d. Position the Battery Selector Switch to OFF.
Section I
Page 4
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