engine fuel supply, consult the operating instructions
for
the generator before deciding on a fuel type.
Fuel Fill
The fuel filler cap is located on the rear
of
the coach.
Modern fuel systems
may
build up vapor pressure
within
the
tank as the gasoline warms during use or
hot
weather. Under oertain conditions, sudden release
of
this pressure when removing the gasoline cap can
spray gasoline from the fill opening, causing a possi-
ble hazard.
WARNING: WHEN
REMOVING 'THE GASOLINE
CAP.
ROTATE
IT
SLOWlY
ONLY
FAR
ENOUGH
TO
ALLOW PRESSURE·TO RELEASE;'AFTER ANY
"HISSING"
SOUNDS
STOP.
COMPLETE
THE
REMOVAL
OF
THE
CAP.
.
To
protect
the
gasoline system from excessive pressure
or
vacuum,
or
from·sudden release 'of pressure, replace
lost
caps
with
caps
of
the
same design available from
your'
Fleetwood
motor
home -dealer.···
.'
. Clean
up
fuel spills immediately. Raw fuel spilled on
the
motor
home
could damage the exterior finish, and
is a serious fire hazard.
.'
Fuel Types
And
Vapor Lock
Today's automotive ·fuel and emissions systems
are
sophisticated. and highly engineered'
to
meet
Federal
and state emissions standards. They
are
also sometimes
sensitive
to
fuel types and blends, particularly blends
that
are optimized
for
climatic ·conditions.
Fuel
refiners'
change
the
additives
in
the
fuel
to
compensate
for
temperature variations during winter or summer months.
This
compensation
changes. the
"vapor
pressure"-
of
the
fual. This means
that
the fuel· vaporizes easier during
the
winter
than
It
does during the summer when higher
air temperatures help
the
fuel vaporize in the engine.
Since colder temperatures reduce
the
fuel's ability to
. vaporize and burn in your engine. additives help raise
the
volatility
of
the fuel. This helps
the
engine start
easier and
run
smoother during
winter
months_ Under
the
best
of
conditions;' the
refinerS'
supply thetrgas sta-
tion
customers
with
the correct fuel
for
their location
and.
seasonal conditions. Sometimes though, fuel blend-
ed
for
winter
is supplied during summer months.
What
this all means is
that
there is a possibility
of
"vapor
lock"
during summer driving; This condition
is
a.
combination
of
new
engine design
(with
attendant
higher temperatures under.the hood), and
excessive
fuel
vaporization caused by
the' vapor pressure
of
the fuel
you
are
using_
If
your engine and fuel system
are
pro-
perly tuned and maintained, you should
not
experience
vapor lock.
If
vapor lock occurs, the fuel itself could
~e
the cause.
If
at
all possible, check
with
the
gas
sta-
tIon attendant
as
to the fuel blend before filling your
fuel tank.
If
you
purchase your fuel from nationally
recognized fuel
dealers, your chances
of
vapor lock
can
b~
reduced. If you store your motor home during the
wInter months, avoid storing large quantities
of
winter
blended fuel
in
the tank. When you take the vehicle
10
out
of
storage
in
th;e
spring or summer, this
full
I may
cause vapor lock until
it
is
used
up.
Another note on long storage -
if
you plan to store
your motor home for a long period in conditions
of
wide-
ly varying humidity, consider topping
off
the
fuel tank.
This will reduce the buildup
of
condensation in the tank
that could cause rough engine operation, fuel filter
blockage. or other problems associated
with
water
in
the fuel.
NOTE:·· DURING EXTENDED PERIODS OF
STORAGE
(60
DAYS
OR
MOREl, GASOLINE
MAY
i
DETE~IOAA1J:
DUE
TO
OXIDATION. THIS CAN
DAMAGE.
RUBBER
.
AND
OTHER
MATERIALS IN
THE
FUEL
SYSTEM
SUCH AS
CARBURETOR
AC--
CELERATOR
PUMP.
DIAPHRAGMS, AND CAR-
BURETOR
INLET
VALVES.
IT
MAY ALSO CLOG
SMALL
ORIFICES.
A COMMERCIALLY AVAIlABLE' GASOLINE FUEL
STABIUZi;R
MAY.
BE
ADDED
TO
GASOLlNE-
PQWERED,VEHICLES.
WHENEVER ACTUAL
OR
EXPE~:\)TOAAGE
PERIODS
EXCEED
60
DAYS.
FOLLOW
THE
ADDITIVE MANUFACTURER'S IN-
STRUCTIONS.
OPERATE
THE
VEHICLE
REGULAR-
LY
DURING
THE
STORAGE
PERIOD
TO
MIX
AND
CIRCULATE THE
ANTI-OXIDANT
AGENT
THROUGHOUT
THE
FUEL
SYSTEM.
AltemativeFuel
Types
, Gasohol, a mixture
of
ethanol (grain alcohol), or
methao:wl
andg~solinemay
be used in your motor home
engine without voiding the warranty. However,
DO
NOT
UNDER
ANY
CIRCUMSTANCES
USE
FUEL
BLENDS
. CONTAINING·MORE';THAN5%' METHANOL
OR
10%
ETHANOL,
AND
DO
NOT
USE
BLENDS THAT CON-
TAIN.
BOTH
METHANOL AND ETHANOL.
Any
fuel
blend you use containing alcohol must also contain
cosolvents
..
andother
edditives
to
protect
the
fuel
system components.
If
you
are
not
sure
of
the com-
position
of
theJlleohol/gasoline blend you intend
to
use.
ask "your;.servleel.station operator; Discontinue use
of
any aleohor/gasoline blend
if
driveability or fuel system
problems
opeur.-
.
:...
k .
ChemieaFraactions betweerl the fuel components and
the materials
in
the fuel Iil'les' can cause deterioration
of
the fuel lines during storage periods. These eHects
areespeeially noticeable
with
gasQhol blends.
If
you
plan
to
useali:ohol blended. fuel, and expect
to
store
your motor home for periods
of
60
days or more, add
a fuel additive that is formulated
to
counteract these
oxidation, eHects.
Your
dealer can advise you on the
proper additives
and
their
use.
If gasohol
is
spilled
on
a painted surface, some dull-
ing or softening of the paint may result.
Overheating
Operate
and
service the engine and cooling systems
in
your vehicle
as
recommended
in
the Chassis
Operator's Manual.
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