Jeep Grand Cherokee 2015, Operating Information Manual, Page: 368 / 878

MAINTENANCE PROCEDURES
The pages that follow contain the required
maintenance services determined by the engi-
neers who designed your vehicle.
Besides those maintenance items specified in
the fixed “Service and Warranty Handbook”,
there are other components which may require
servicing or replacement in the future.
CAUTION!
•
Failure to properly maintain your vehicle or
perform repairs and service when neces-
sary could result in more costly repairs,
damage to other components or negatively
impact vehicle performance. Immediately
have potential malfunctions examined by
an authorized dealer or qualified repair
center.
(Continued)
CAUTION! (Continued)
•
Your vehicle has been built with improved
fluids that protect the performance and
durability of your vehicle and also allow
extended maintenance intervals. Do not
use chemical flushes in these components
as the chemicals can damage your engine,
transmission or air conditioning. Such
damage is not covered by the New Vehicle
Limited Warranty. If a flush is needed
because of component malfunction, use
only the specified fluid for the flushing
procedure.
Engine Oil
Checking Oil Level
To assure proper engine lubrication, the engine
oil must be maintained at the correct level.
Check the oil level at regular intervals, such as
every fuel stop. The best time to check the
engine oil level is about five minutes after a fully
warmed up engine is shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
readings. Always maintain the oil level within
the SAFE zone on the dipstick. Adding 1 quart
(0.9 L) of oil when the reading is at the bottom of
the SAFE zone will result in a reading at the top
of the safe zone on these engines.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This
could damage your engine.
Change Engine Oil
Refer to the “Service and Warranty Handbook”
for the proper maintenance intervals.
Engine Oil Selection
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
Chrysler Material Standard MS-6395.
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