
BREAKING-IN YOUR VEHICLE
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,000 miles
(1,600 kilometers) of new vehicle operation. Vary your speed to allow
parts to adjust themselves to other parts.
Drive your new vehicle at least 500 miles (800 kilometers) before towing
a trailer. Make sure you use the specified engine oil by checking the
engine oil specification chart underEngine oilin theMaintenance
chapter.
Do not add friction modifier compounds or special break-in oils during
the first few thousand miles (kilometers) of operation, since these
additives may prevent piston ring seating. SeeEngine oilin the
Maintenancechapter of this supplement for more information on oil
usage.
DIESEL ENGINE INFORMATION
The diesel engine fuel system is a pressurized two-stage filtration system
and consists of:
•a frame-mounted diesel fuel conditioner module (DFCM) / primary
filter with an electric fuel pump and water drain,
•an engine-mounted secondary fuel filter,
•a fuel injector for each cylinder (8 total),
•a high-pressure fuel pump,
•a high-pressure fuel rail for each cylinder bank (2 total) and
•numerous high-pressure pipes from the high-pressure pump to the
rails, and rails to the injectors.
The DFCM acts as a primary fuel filter/water separator which removes
both water and impurities from the fuel. The engine mounted filter filters
finer impurities from the diesel fuel. The engine-mounted fuel filter and
the DFCM filter should be changed at the recommended service interval
or when indicated by the information displayLOW FUEL PRESSURE
message. Refer to thescheduled maintenance informationin this
supplement for more information.
The DFCM should be drained at regular intervals (recommended at
every oil change) or when indicated by the information display and water
in fuel indicator light. SeeFuel filter/water separatorin theFuel and
refuelingchapter.
Introduction
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2013 Diesel(67l)
Supplement, 1st Printing
USA(fus) 

GAUGES
Cluster shown in standard measure. Metric similar.
A. Engine boost gauge
Engine Boost Gauge
Indicates the amount of manifold air pressure in the engine.
WARNING LAMPS AND INDICATORS
The following warning lamps and indicators will alert you to a vehicle
condition that may become serious. Some lamps will illuminate when you
start your vehicle to make sure they work. If any lamps remain on after
starting your vehicle, refer to the respective system warning lamp for
further information.
Note:Some warning indicators appear in the information display and
function the same as a warning lamp but do not display when you start
your vehicle.
A
60
70
80
90
100
02
0406
01001201401600
10203040012
3
4
5
CH04CHEF
Instrument Cluster
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Supplement, 1st Printing
USA(fus) 

Do not crank the engine for more than 10 seconds as starter damage
may occur. If the engine fails to start, turn the key to 3 (off) and wait
30 seconds before trying again.
1. Turn the key to on without
turning the key to start. Do not
start the engine until the
glow-plug pre-heat indicator turns off.
2. When the glow plug pre-heat indicator turns off, turn the key to
start, then release the key as soon as the engine starts. The glow
plugs may remain on for a period of time after engine start. If the
engine is not started before the glow plug activation time ends, the
glow plugs will need to be reset by turning the key to off.
3. After the engine starts, allow it to idle for about 15 seconds. This is
to protect the engine. Do not increase engine speed until the oil
pressure gauge indicates normal pressure.
ENGINE IDLE SHUTDOWN (IF EQUIPPED)
Your vehicle may be equipped with an engine idle shutdown system. This
system automatically shuts down your engine when it has been idling in
P (Park) or N (Neutral) for five minutes (parking brake set) or
15 minutes (parking brake not set). When the engine idle shutdown
process has started:
•A chime sounds and the information display will showENGINE
TURNS OFF IN 30(seconds) and start counting down.
•The 5 or 15 minute timer can be restarted by changing the position
of the accelerator pedal, brake pedal or the park brake within the
final 30 seconds.
•When the timer reaches zero, the engine shuts down and this
message will appear in the information displayENGINE TURNED
OFF.
•One minute after the engine has shut down, the electrical system
simulates key off, even though the ignition is still in the on position,
initiating normal accessory delay period.
•The ignition must be moved to the off position to reset the system
before restarting the vehicle.
The engine idle shutdown idle timer does not start if:
•The engine is operating in power take-off (PTO) mode.
•The engine coolant temperature is below 60°F (16°C).
•The exhaust emission control device (DPF) is regenerating.
Starting and Stopping the Engine
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USA(fus) 

SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEM
Your vehicle is equipped with a selective catalytic reduction (SCR)
system to help reduce emission levels of oxides of nitrogen from the
exhaust of the diesel engine. The system automatically injects diesel
exhaust fluid (DEF) into the exhaust system to enable proper SCR
function.
Importance of maintaining the DEF level
In order for the SCR system to operate properly, the DEF level must be
maintained. Generally, the DEF tank should be filled during the oil
change service interval. See thescheduled maintenance informationin
this supplement for more information. However, certain conditions or
driving styles, such as trailer towing or fast rates of acceleration, will
require the refilling of the DEF tank more often.
The engine control unit will monitor the amount of fluid available in the
DEF tank. Running a system check in the message center will indicate
whether the DEF level is ok or if it is less than 1/2 full. A message will
automatically be displayed in the message center when the DEF level is
low and needs to be refilled. When you see this message you should refill
your tank. See theInformation displayschapter of yourOwner’s
Manualfor information display functions. For instructions on refilling
your DEF tank, seeFilling the DEF tankin theFuel and Refueling
chapter.
DEF warning messages and vehicle operations
WARNING:Diesel Exhaust Fluid (DEF) must be refilled when
low or replaced when contaminated or the vehicle speed will be
speed limited to 50 mph (80 km/h). In these conditions, drive with
caution and refill DEF immediately. If the DEF becomes empty or
contaminated fluid is not replaced, the vehicle will become limited to
idle speed only once stopped. In these conditions, be cautious where
you stop the vehicle because you may not be able to drive long
distances and will not be able to maintain highway speeds until DEF is
refilled or replaced.
WARNING:Tampering or disabling your vehicle’s exhaust
aftertreatment system will result in severe vehicle performance
limitation including eventual speed limiting to 5 mph.
Fuel and Refueling
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USA(fus)