RAM 2500 2023, Руководство пользователя

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202 STARTING AND OPERATING
NOTE:

Your vehicle is equipped with a DEF injection system.
You may occasionally hear an audible clicking noise.
This is normal operation.
 The DEF pump will run for a period of time after engine
shutdown to purge the DEF system. This is normal
operation.
Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a very stable
product with a long shelf life. If DEF is kept in
temperatures between 10°F and 90°F (-12°C 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.
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 corro -
sion by DEF.
 If DEF is spilled, it should be wiped up completely.
Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument cluster) will
display the level of DEF remaining in the tank
Ú
page 104.
NOTE:
 Driving conditions (altitude, vehicle speed, load, etc.)
will affect the amount of DEF that is used in your
vehicle.

Another factor is that outside temperature can affect
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.
 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.
DEF FILL PROCEDURE
NOTE:
For the correct fluid type
Ú
page 446.
Remove cap from DEF tank (located on drivers side of the
vehicle or in fuel door).
Fill Locations
NOTE:

The DEF gauge may take up to five seconds to update
after adding a gallon or more of DEF to the DEF tank. If
you have a fault related to the DEF system, the gauge
may not update to the new level. See an authorized
dealer for service.
 The DEF gauge may also not immediately update after
a refill if the temperature of the DEF fluid is below 12°F
(-11°C). The DEF tank heater will possibly warm up the
DEF fluid and allow the gauge to update after a period
of run time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill level for
several drives.
1 — Diesel Exhaust Fluid (DEF) Fill Location
2 — Diesel Fuel Fill Location
23_DJD2_OM_EN_USC_t.book Page 202