3-17
SECTION 3 –
DRIVING YOUR MOTORHOME
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 no idle the engine for excessively long
periods.
IMPORTANT:
Long periods of idling are
not good for an engine because the combustion
chamber temperatures drop so low that the fuel
may not burn completely. This will cause carbon
to clog the piston rings and may result in stuck
valves.
Further Information
Refer to the chassis manual provided in your
InfoCase for the manufacturer’s
recommendations on starting and stopping the
engine.
ENGINE BLOCK HEATER –
DIESEL ENGINE
Your diesel engine is equipped with an engine
coolant heater to assist starting in freezing
temperatures. The power cord is located in the
rear cargo compartment on the driver side of the
coach. When plugged into the receptacle, the
heater is connected to both the shoreline and the
auxiliary generator, so a separate extension cord
is not needed. The power switch is located near
the monitor panel.
WARNING
Do not use ether or starting fluid.
Intake manifold heater may cause
explosion and injury.
