Maintenance Items To Aid Cold Weather Starting - Isuzu NPR 2008 Owner's Manual

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FUEL CAP
1. Follow all the steps under "Parking" in Section 2.
2. Follow any posted safety rules. Stand to the side, never above or
opposite the filler opening.
3. Check that the fuel cap is tight, and see to it that engine oil, engine
coolant in the reservoir, and washer fluid, etc., are at proper levels.
Then do the Driver Daily Checklist in Section 1.
NOTICE: Always use diesel fuel.
Use of low quality fuel may adversely affect the engine parts, and
cause failure.
Use of other than specified fuel may adversely affect the engine
or emission control system and cause failure. Especially for the
common rail type engine, always use ultra low sulfur diesel fuel (15
ppm or less of sulfur content).
If other than specified diesel fuel is used, the vehicle may not
conform to specifications.
MAINTENANCE ITEMS TO AID COLD
Since the basic principle of diesel engine ignition is based on
compression, the diesel engine is somewhat harder to start than a
gasoline engine when the temperature is below freezing. To help
prevent hard starting problems, special attention should be given to
following normal maintenance items.
Refer to Section 2 for diesel fuel requirement.
1. Neglecting to have the fuel filter and water separator serviced can
be one of the major contributors to hard starting. If water is
permitted to accumulate in the primary filter, it will freeze and make
starting the engine impossible.
2. Make sure the fuel tank vent is open.
3. Always refuel at the end of a day's operation. Moisture will
condense in an empty tank; therefore, the tank should be filled
before leaving the vehicle standing for an extended period.
If, by mistake, gasoline is poured into the diesel fuel tank and the
engine is operated, for a short period of time the entire system must be
drained; otherwise, damage to the fuel injector, fuel supply pump and
engine will occur.
WEATHER STARTING
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