Jeep GLADIATOR 2022 Owner's Manual page 166

164 STARTING AND OPERATING
Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a very stable
product with a long shelf life. If DEF is kept in tempera-
tures 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.
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 sub-
ject to corrosion by DEF.
•
If DEF is spilled, it should be wiped up completely.
Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument cluster dis-
play) will display the level of DEF remaining in the tank
page 99.
NOTE:
Driving conditions (altitude, vehicle speed, load, etc.)
will affect the amount of DEF that is used in your
vehicle.
DEF FILL PROCEDURE
NOTE:
For the correct DEF fluid type see
1. Remove cap from DEF fill inlet (located in fuel door).
Fuel and Diesel Exhaust Fluid Fill Location
1 — Diesel Fuel Filler
2 — Diesel Exhaust Fluid Filler
2. Insert DEF fill adapter/nozzle into DEF fill inlet.
NOTE:
○
The DEF gauge may take up to five seconds to
update after adding a gallon or more of Diesel
Exhaust Fluid (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 line heater will pos-
page 361.
sibly 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.
○
Excessive overfilling of the DEF tank can result in
a MIL lamp/fault code and inaccurate level
readings.
Refilling With Nozzles
You can fill up at any DEF distributor.
Proceed as follows:
○
Insert the DEF nozzle in the filler, start refilling
and stop refilling at the first shut-off (the shut-
off indicates that the DEF tank is full). Do not
proceed with the refilling, to prevent spillage of
DEF.
○
Extract the nozzle.
Refilling With Containers
Proceed as follows:
○
Check the expiration date.
○
Read the advice for use on the label before
pouring the content of the bottle into the DEF
tank.
○
If systems which cannot be screwed in (e.g.
tanks) are used for refilling, after the indication
appears on the instrument panel display
page 99 fill the DEF tank with no more than
2 gallons (8 liters).
○
If containers which can be screwed to the filler
are used, the reservoir is full when the DEF level
in the container stops pouring out. Do not pro-
ceed further.