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A
U
C
VOID
SING
ONTAMINATED
Fuel that is contaminated by water or dirt can cause
severe damage to the engine fuel system. Proper
maintenance of the engine fuel filter and fuel tank is
essential. Refer to "Dealer Service" in "Servicing And
Maintenance" for further information.
B
F
S
— D
ULK
UEL
TORAGE
IESEL
If you store quantities of fuel, good maintenance of the
stored fuel is also essential. Fuel contaminated with water
will promote the growth of "microbes." These microbes
form "slime" that will clog the fuel filtration system and
lines. Drain condensation from the supply tank and
change the line filter on a regular basis.
NOTE:
When a diesel engine is allowed to run out of fuel, air is
pulled into the fuel system.
If the vehicle will not start, refer to "Dealer Service /
Priming If The Engine Has Run Out Of Fuel" in "Servicing
And Maintenance" for further information.
WARNING!
Do not open the high pressure fuel system with the
engine running. Engine operation causes high fuel
pressure. High pressure fuel spray can cause serious
injury or death.
F
D
E
UEL
IESEL
XHAUST
Your vehicle is equipped with a Selective Catalytic
Reduction (SCR) system to meet the very stringent diesel
emissions standards required by the Environmental
Protection Agency.
The purpose of the SCR system is to reduce levels of
F
oxides of nitrogen (NOx) emitted from engines that are
UEL
harmful to our health and the environment to a near-zero
level. A small quantity of Diesel Exhaust Fluid (DEF) is
injected into the exhaust upstream of a catalyst where,
when vaporized, it converts smog-forming NOx into
harmless nitrogen (N2) and water vapor (H2O), two
natural components of the air we breathe. You can
operate with the comfort that your vehicle is contributing
to a cleaner, healthier world environment for this and
generations to come.
D
E
IESEL
XHAUST
Diesel Exhaust Fluid (DEF) is considered a very stable
product with a long shelf life. If DEF is kept in
temperatures between 10° and 90°F (-12° and 32°C), it
will last a minimum of one year.
DEF is subject to freezing at the lowest temperatures. For
example, DEF may freeze at temperatures at or below
12°F (-11°C). The system has been designed to operate
in this environment.
F
NOTE:
LUID
When working with DEF, it is important to know that:
Any containers or parts that come into contact with DEF
If DEF is spilled, it should be wiped up completely.
A
DDING
The Diesel Exhaust Fluid (DEF) gauge (located on the
instrument cluster) will display the level of DEF remaining
in the tank. Refer to "Instrument Cluster" and "Instrument
Cluster Descriptions" in "Getting To Know Your Instrument
Panel" for further information.
NOTE:
F
S
LUID
TORAGE
Driving conditions (altitude, vehicle speed, load, etc.)
Another factor is that outside temperature can affect
There is an electric heater inside the DEF tank that
STARTING AND OPERATING
must be DEF compatible (plastic or stainless steel).
Copper, brass, aluminum, iron or non-stainless steel
should be avoided as they are subject to corrosion by
DEF.
D
E
F
IESEL
XHAUST
LUID
will effect the amount of DEF that is used in your
vehicle.
DEF consumption. In cold conditions, 12°F (-11°C)
and below, the DEF gauge needle can stay on a fixed
position and may not move for extended periods of
time. This is a normal function of the system.
automatically works when necessary. And if the DEF
supply does freeze, the truck will operate normally until
it thaws.
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