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and burn in your engine. additives help raise the volatili-
ty of the fuel. This helps the engine start easier and
run smoother during winter months: Under the best of
conditions, the refiners supply their gas station customers
with the correct fuel for their location and seasonal con-
ditions. Sometimes though. fuel blended 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 hoodl, 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
be 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
be 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 out
of storage in the spring or summer, this fuel 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
widely
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 MORE). GASOUNE MAY
DETERIORATE 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 GASOUNE FUEL
STABlUZER MAY BE ADDED TO GASOUNE·
POWERED VEHICLES WHENEVER ACTUAL OR
EXPECTED STORAGE PERIODS EXCEED 60 DAYS.
FOLLOW ADDITIVE MANUFACTURER'S INSTRUC·
TlONS. OPERATE THE VEHICLE REGULARLY DUR·
ING THE STORAGE PERIOD TO MIX AND CIR·
CULATE
THE
ANTI·OXIDANT
AGENT
THROUGHOUT THE FUEL SYSTEM.
Altemative Fuel Types
Gasohol, a mixture of ethanol (grain alcohol), or
methanol and gasoline may be used in your motor home
engine without voiding the warranty. However. DO NOT
UNDER ANY CIRCUMSTANCES USE FUEL BLENDS
CONTAINING MORE THAN 5% METHANOL OR 10%
ETHANOL. AND DO NOT USE BLENDS THAT CONTAIN
BOTH METHANOL AND ETHANOL. Any tuel blend you
use' containing alcohol must also contain cosolvents ,and
other additives to protect the fuel system components.
9
If you are not sure of the composition of the
alcohol/gasoline blend you intend to use. ask your se,·
vice station
operator,
Discontinue use of any
alcohol/gasoline blend if driveability or fuel system
problems occur.
Chemical reactions between the fuel components and
the materials in the fuel lines can cause deterioration
of the fuel lines during storage periods,:These effects
are especially noticeable with gasohol bl,ends. If you plan
to use alcohol 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 oxida-
tion effects. 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.
CARBON MONOXIDE SAFETY PRECAUTIONS
Carbon monoxide is a colorless, tasteless. odorless
gas. It is a by-product of combustion in engine(s). The
engines in your motor home and generator system ·.(if
installed) produce it constantly while thl!¥ are running.
. CARBON MONOXIDE IS DEADLY.
P1~ase
relld,apd
understand
the
following precautions to protect yourself
and others from the effects of .. carbon monoxide
poisoning.
','
WARNING: EXHAUST GASES ARE DEADLY. DO
NOT BLOCK THE TAILPIPES OR SITUATE THE
VEHICLE IN A PLACE WHERE THE EXHAUST
GASES HAVE ANY POSSIBILITY OF ACCUMULAT-
ING OUTSIDE. UNDERNEATH. OR INSIDE YOUR
VEHICLE OR ANY NEARBY VEHICLES. OUTSIDE
AIR MOVEMENlS CAN CARRY EXHAUST GASES
INSIDE THE VEHICLE THROUGH WINDOWS OR
OTHER OPENINGS REMOTE FROM THE EXHAUST
OUTLET. OPERATE TijE ENGINE(S) ONLY WHEN
SAFE DISPERSION OF EXHAUST GASES CAN BE
ASSURED. AND MONIlOR OUTSIDE CONDITIONS
TO BE SURE THAT EXHAUST CONTINUES TO BE
DISPERSED SAFELY.
.
Beware of exhaust gas (carbon monoxide) poisoning
symptoms:
Dizziness
Intense Headache
Weakness and Sleepiness
Vomiting
Muscular Twitching
Throbbing in Temples
If symptoms indicate
the
possibility of carbon monox-
ide poisoning. tum off the englne(s) immediately. get
out into fresh air at once. and summon medical
assistance.
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Troubleshooting
