3-13
SECTION 3 –
DRIVING YOUR MOTORHOME
intended only to provide heating and
cooling for the cab area.
A small amount of air will blow out all of
the defrost and the dash vents regardless
of the mode setting.
Further Information
See the manufacturer’s user guide provided in
your InfoCase for complete operating
instructions.
AIR HORNS
Press the Air Horn switch (located on the dash
or driver side trim panel, depending on model) to
the ON (up) position - then use the horn button on
the steering wheel to sound the air horns. The
switch enables the air horn system to work with
the standard chassis horn.
Press the Air Horn switch OFF (down) to
disable the air horns.
The air horn sound units are located behind
the front grille assembly.
FUEL SELECTION – DIESEL
ENGINE
Refer to your chassis manual for the
manufacturer's recommendations on proper fuel
selection (ULSD fuel only).
Winter Fuel Waxing and Anti-Gel
Additives
In sub-freezing temperatures, #2 diesel fuel
can form small wax crystals that become trapped
in the fuel filter and block the fuel flow to the
engine, causing it to stall out. At sub-zero
temperatures, the fuel can congeal and turn
“slushy.” If this happens, the only remedy is to
have the vehicle towed into a heated facility to
allow the fuel to warm up and become fully
liquid again.
During winter time, most truck stops and
reputable filling stations have winter blend diesel
fuels available that are less susceptible to waxing.
There are also commercially available
products (typically called anti-gel additives) to
add to diesel fuel while filling the tank to inhibit
wax formation in freezing temperatures.
Further Information
Consult your chassis manual or diesel engine
guide in your InfoCase for more information on
fuel requirements and additives.
FILLING THE FUEL TANK –
DIESEL ENGINE
Diesel fuel can foam up while being pumped
into the tank. Sometimes this foam can cause the
pump nozzle to shut off before the tank is
actually full. Allow the foam to settle, then
resume filling at a slower flow rate until the tank
is full.
STARTING AND STOPPING
DIESEL ENGINE
See also “Engine Block Heater” elsewhere in
this section.
NOTE: Never attempt to start the vehicle by hot-
wiring.
Idling Diesel Engine
Do not idle the engine for excessively long
periods.
Air Horn Switch
(Located on drivers side trim panel)
-Typical View
