NOTE:
• Use of Climatized Ultra Low Sulfur Diesel Fuel or
Number 1 Ultra Low Sulfur Diesel Fuel results in a
noticeable decrease in fuel economy.
• Climatized Ultra Low Sulfur Diesel Fuel is a blend of
Number 2 Ultra Low Sulfur and Number 1 Ultra Low
Sulfur Diesel Fuels 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 Diesel
Fuel”. Use of incorrect fuel could result in engine and
exhaust system damage. Refer to “Fuel Requirements”
in “Starting And Operating” for further information.
• If climatized or diesel Number 1 ULSD fuel is not
available, and you are operating below (20°F/-6°C), in
sustained arctic conditions, Mopar Premium Diesel Fuel
Treatment (or equivalent) is recommended to avoid
gelling (see Fuel Operating Range Chart).
Engine Oil Usage
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for the correct engine oil viscosity.
Winter Front Usage
A winter front or cold weather cover is to 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 varying 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 charge air cooler and automatic
transmission oil cooler. When ambient temperatures drop
Winter Front Cover
4
STARTING AND OPERATING 37
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