User Manual - Page 190

For 2018 GRAND CHEROKEE SRT.

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CAUTION!
To avoid DEF spillage, and possible dam-
age to the DEF tank from overfilling, do
not “top off” the DEF tank after filling.
DO NOT OVERFILL. DEF will freeze be-
low 12ºF (-11ºC). The DEF system is
designed to work in temperatures below
the DEF freezing point, however, if the
tank is overfilled and freezes, the system
could be damaged.
When DEF is spilled, clean the area
immediately with water and use an ab-
sorbent material to soak up the spills on
the ground.
Do not attempt to start your engine if
DEF is accidentally added to the diesel
fuel tank as it can result in severe dam-
age to your engine, including but not
limited to failure of the fuel pump and
injectors.
CAUTION!
Never add anything other than DEF to
the tank especially any form of hydro-
carbon such as diesel fuel, fuel system
additives, gasoline, or any other
petroleum-based product. Even a very
small amount of these, less than
100 parts per million or less than 1 oz.
(30 ml) per 78 gallons (295 liters) will
contaminate the entire DEF system and
will require replacement. If owners use a
container, funnel or nozzle when refilling
the tank, it should either be new or one
that is has only been used for adding
DEF. Mopar provides an attachable
nozzle with its DEF for this purpose.
3. Stop filling the DEF tank immediately
when any of the following happen: DEF
stops flowing from the fill bottle into the
DEF fill inlet, DEF splashes out the fill
inlet, or a DEF pump nozzle automatically
shuts off.
4. Reinstall cap onto DEF fill inlet.
STARTING AND OPERATING
188
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