RAM 1500 2022, Руководство пользователя

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STARTING AND OPERATING 209
B
ULK
F
UEL
S
TORAGE
— D
IESEL
F
UEL
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
Ú
page 414.
D
IESEL
E
XHAUST
F
LUID
Your vehicle is equipped with a Selective Catalytic
Reduction (SCR) system to meet diesel emissions
standards required by the Environmental
Protection Agency.
The purpose of the SCR system is to reduce levels
of oxides of nitrogen (NO
x
) emitted from engines
that are 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,
converts smog-forming NO
x
into harmless
nitrogen (N
2
) and water vapor (H
2
O), two natural
components of the air we breathe.
D
IESEL
E
XHAUST
F
LUID
S
TORAGE
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 may freeze at temperatures at or below 12°F
(-11°C). The system has been designed to operate
in this environment.
NOTE:
When working with DEF, it is important to know
that:

Any containers or parts that come into contact
with DEF 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.

If DEF is spilled, it should be wiped up
completely.
A
DDING
D
IESEL
E
XHAUST
F
LUID
The Diesel Exhaust Fluid (DEF) gauge (located on
the instrument cluster) will display the level of DEF
remaining in the tank
Ú
page 110.
NOTE:

Driving conditions (altitude, vehicle speed, load,
etc.) will effect the amount of DEF that is used in
your vehicle.

Outside temperature can affect DEF consump -
tion. In cold conditions, 12°F (-11°C) and
below, the DEF gauge may take longer to
operate as intended. This is a normal function of
the system.

There is an electric heater inside the DEF tank
that automatically works when necessary. If the
DEF supply does freeze, the truck will operate
normally until it thaws.
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.
4
22_DT_OM_EN_USC_t.book Page 209