Fuel Filters; Use And Maintenance; Fuel Standards - Four winns 278 VISTA Owner's Manual

level drops below the 3/4 or 1/2 mark. This is caused
by the angle of the fuel in the tank as shown in
Figure I-4.
Figure I-4: Effects of Trim Angle
It is very important to keep track of hours and fuel
consumption to obtain an average gallon per hour
consumption figure. Refer to the fuel log located at
the back of this manual. This will help to prevent any
problems with running out of fuel on the water.
Dealers are equipped with some general figures on
consumption which can be used as a guide until spe-
cific information on your boat is determined. Because
of boating conditions, speed, weight and other factors
common to your situation, fuel consumption will vary
between your boat and consumption figures devel-
oped by Four Winns.
When the fuel gauge begins to register below the
"full" mark, the gauge readings will drop much faster
until it reads" empty". When this occurs, the trim angle
has affected the sender reading. When the gauge
registers "empty", the sender has bottomed out and
there may be 3 to 4 gallons of fuel in the tank.
See Figure I-5.
Figure I-5: Trim Angle Effect with Low Fuel
F. Fuel Filters
Fuel filters are installed on each engine. Filters should
changed frequently to assure an adequate supply of
fuel to the engine. Refer to the engine manual for ad-
ditional information. The engine manual is included in
the owner's information packet.
Fuel Systems - Section I
NOTICE
Canister-type filters should be changed
annually.
G. Use and Maintenance
DO NOT let the odor of gasoline go un-
checked. If the odor of gasoline is noted, DO
NOT START ENGINE. If engine is running,
SHUT OFF ENGINE, ELECTRICAL AND
HEAT GENERATING EQUIPMENT. Investi-
gate and correct the situation immediately!
Have all passengers put on personal flotation
devices and keep fire extinguishers at hand
until the situation is resolved.
Avoid serious injury or death from fire or
explosion resulting from leaking fuel. Inspect
systems for leaks at least once a year.
To help guard against damage, avoid the
storage or handling of gear near the fuel lines,
fittings and tanks.
I - 2

FUEL STANDARDS

Be cautious when using gasoline that contains alco-
hol. Refer to the section on gasoline requirements in
your engine manual for additional information.
To conform to Federal Air Quality Standards,
the petroleum industry reduced the amount
of tetraethyl lead in gasoline. Alcohol is be-
ing blended with gasoline to help restore the
octane rating lost when the lead was removed.
While blending alcohol with gasoline increases
the octane level of the fuel, it can also create
certain safety and performance related
problems for boaters.
Owner's Manual Page 0