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SERVICING AND MAINTENANCE 381
DEALER SERVICE
An authorized dealer has the qualified service
personnel, special tools, and equipment to
perform all service operations in an expert
manner. Service Manuals are available which
include detailed service information for your
vehicle. Refer to these Service Manuals before
attempting any procedure yourself.
NOTE:
Intentional tampering with emissions control
systems may void your warranty and could result in
civil penalties being assessed against you.
ENGINE OIL
Change Engine Oil — Gas Engine
The oil change indicator system will remind you
that it is time to take your vehicle in for scheduled
maintenance. Refer to “Scheduled Servicing” in
this chapter for further information.
NOTE:
Under no circumstances should oil change
intervals exceed 8,000 miles (13,000 km),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for fleet
customers.
Change Engine Oil — Diesel Engine
Refer to the “Scheduled Servicing” for the proper
maintenance intervals.
Engine Oil Selection — Gas Engine
For best performance and maximum protection
under all types of operating conditions, the
manufacturer only recommends engine oils that
are API Certified and meet the requirements of
FCA Material Standard MS-12633.
NOTE:
Hemi engine (6.4L) at times can tick right after
startup and then quiet down after approximately
30 seconds. This is normal and will not harm the
engine. This characteristic can be caused by short
drive cycles. For example, if the vehicle is started
then shut off after driving a short distance. Upon
restarting, you may experience a ticking sound.
Other causes could be if the vehicle is unused for
an extended period of time, incorrect oil, extended
oil changes or extended idling.
If the engine continues to tick or if the Malfunction
Indicator Light (MIL) comes on, see the nearest
authorized dealer.
Engine Oil Selection — Diesel Engine
For best performance and maximum protection
under all types of operating conditions, the
manufacturer only recommends engine oils that
are API CK-4 certified and meet the requirements
of FCA US LLC. Use Mopar® or an equivalent oil
meeting FCA Material Standard MS-10902.
Products meeting Cummins® CES 20081 may
also be used. The identification of these engine oils
are typically located on the back of the oil
container.
American Petroleum Institute (API) Engine
Oil Identification Symbol — Gas Engine
This symbol means that the oil has been
certified by the American Petroleum
Institute (API). The manufacturer only
recommends API Certified engine oils.
This symbol certifies 0W-20, 5W-20, 0W-30,
5W-30 and 10W-30 engine oils.
WARNING!
You can be badly injured working on or around a
motor vehicle. Only do service work for which
you have the knowledge and the proper
equipment. If you have any doubt about your
ability to perform a service job, take your vehicle
to a competent mechanic.
CAUTION!
Do not use chemical flushes in your engine oil as
the chemicals can damage your engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
7
20_DJD2_OM_EN_USC_t.book Page 381
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