Jeep WRANGLER 2020 Owner's Manual page 26

24 STARTING AND OPERATING
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.
Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument
cluster display) will display the level of DEF
remaining in the tank. Refer to "Instrument
Cluster Display" in "Getting To Know Your
Instrument Panel" for further information.
NOTE:
Driving conditions (altitude, vehicle speed, load,
etc.) will affect the amount of DEF that is used
in your vehicle.
DEF Fill Procedure
NOTE:
Refer to "Fluids And Lubricants" in the "Tech-
nical Specifications" section for the correct fluid
type.
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 autho-
rized 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 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.