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Fuel Operating Range Chart
*Number 1 ULSD Fuel should only be used where
extended arctic conditions 0°F (-18°C) exist.
NOTE:
•
Use of Climatized ULSD Fuel or Number 1 ULSD Fuel
results in a noticeable decrease in fuel economy.
•
Climatized ULSD Fuel is a blend of Number 2 ULSD
Fuel and Number 1 ULSD Fuel which reduces the
temperature at which wax crystals form in fuel.
•
The fuel grade should be clearly marked on the
pump at the fuel station.
The engine requires the use of Ultra Low Sulfur Die-
•
sel Fuel. Use of incorrect fuel could result in engine
and exhaust system damage
page 357.
•
If climatized or Number 1 ULSD Fuel is not available,
and you are operating below 20°F (-6°C), in sus-
tained arctic conditions, Mopar® Premium Diesel
Fuel Treatment (or equivalent) is recommended to
avoid gelling (see Fuel Operating Range Chart).
Engine Oil Usage
See Engine Fluids and Lubricants for the correct engine
oil viscosity
page 361.
Winter Front Cover
A Winter front or cold weather cover can be used in
ambient temperatures below 32°F (0°C), especially
during extended idle conditions. This cover is equipped
with four flaps for managing total grille opening in vary-
ing ambient temperatures. If a Winter front or cold
weather cover is to be used, the flaps should be in the
full open position to allow air flow to the cooling module
and automatic transmission oil cooler. When ambient
temperatures drop below 0°F (-17°C) the four flaps
need to be closed. A suitable cold weather cover is
available from a Mopar® dealer.
Engine Warm-Up
Avoid full throttle operation when the engine is cold.
When starting a cold engine, bring the engine up to
operating speed slowly to allow the oil pressure to stabi-
lize as the engine warms up.
If temperatures are below 32°F (0°C), operate the
engine at moderate speeds for five minutes before full
loads are applied.
STARTING AND OPERATING
ENGINE IDLING
Avoid prolonged idling. Long periods of idling may be
harmful to your engine because combustion chamber
temperatures can drop so low that the fuel may not
burn completely. Incomplete combustion allows carbon
and varnish to form on piston rings, cylinder head
valves, and injector nozzles. Also, the unburned fuel
can enter the crankcase, diluting the oil and causing
rapid wear to the engine.
STOPPING THE ENGINE
After full load operation, idle the engine for a few min-
utes before shutting it down. This idle period will allow
the lubricating oil and coolant to carry excess heat away
from the turbocharger.
NOTE:
Refer to the following chart for proper engine shutdown.
127
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