Fuel Systems; Fuel Requirements; Fuel Tank - Holiday Navigator 2003 Owner's Manual

Chassis Information
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FUEL SYSTEMS

Fuel Requirements

Fuel Tank

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Low sulfur #2 diesel fuel or #1 and #2 commercial winter blend diesel
fuels are the most common commercially available and recommended for use.
The Cummins Engine Company Inc. recommends using ASTM #2D fuel. The
use of #2 diesel fuel will result in optimum engine performance.
Try to obtain fuel from sources that are serviced often such as large truck
service facilities. The fuel supply is fresh and the possibility of introducing
contaminants or water into the fuel system is reduced. It is important to not
accidentally run the engine out of fuel. The fuel system on the engine is sensi-
tive to air. If the engine is allowed to run out of fuel, the fuel system will need
to be thoroughly primed before the engine will start. Refer to Fuel Filters for
priming instructions.
NOTE: If the engine has run out of fuel it will need to be primed.
Refer to Fuel Filter for instructions on priming the fuel system.
WARNING: Do not mix gasohol with diesel fuel. This mixture can
cause an explosion.
NOTE: Due to the precise tolerances of diesel injection systems, it is
extremely important that fuel be kept clean and free of dirt or water.
Dirt or water in the system can cause severe damage to both the fuel
pump and the fuel injector. Fuel additives for lubricity are not
recommended. There are numerous diesel fuel additives to help
remove moisture from fuel, prevent microbe growth and to prevent
gelling during cold weather. Before adding any type of fuel additive
or extender, consult the OEM Cummins manual.
The diesel fuel tank is made of 160 thousands aluminum. Pick-up and
return lines are placed at opposite ends of the tank inhibiting fuel aeration. The
engine pickup tube is cut at a 45° angle to allow optimum flow to the engine.
The generator pick-up and Aqua-Hot (if applicable) tube is set to approximately
a ¼ of a tank. This will prevent depleting the fuel supply while dry camping.
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