Checking Oil Level - 3.0 Diesel Engine; Dealer Service; Engine Oil - Jeep Grand Cherokee 2018 Manual

Checking Oil Level — 3.0 Diesel
Engine
To assure proper lubrication of your vehicle's
engine, the engine oil must be maintained at the
correct level. Check the oil level at regular
intervals. The best time to check the oil level is
before starting the engine after it has been
parked overnight. When checking oil after oper-
ating the engine, first ensure the engine is at full
operating temperature, then wait for five min-
utes after engine shutdown to check the oil.
Oil Dipstick
1 — MAX Mark
2 — MIN Mark
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
readings. Add oil only when the level on the
dipstick is below the "MIN" mark. The total
capacity from the MIN mark to the MAX mark is
1 qt (1 L).
36
CAUTION!
Overfilling or underfilling the crankcase will
cause oil aeration or loss of oil pressure. This
could damage your engine.
NOTE:
It is possible for your oil level to be slightly
higher than a previous check. This would be due
to diesel fuel that may temporarily be in the
crankcase due to operation of the diesel particu-
late filter regeneration strategy. This fuel will
evaporate out under normal operation.
Never operate the engine with oil level below the
"MIN" mark or above the upper "MAX" mark.

DEALER SERVICE

An authorized dealer has the qualified service
personnel, special tools, and equipment to per-
form 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 attempt-
ing any procedure yourself.
NOTE:
Intentional tampering with emissions control
systems may void your warranty and could
result in civil penalties being assessed against
you.
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.

Engine Oil

Change Engine Oil — Diesel Engine
Refer to the "Scheduled Servicing" for the
proper maintenance intervals.
Diesel Engine Oil Selection
For best performance and maximum protection
under all types of operating conditions, the
manufacturer recommends engine oils that
meet the requirements of FCA Material Stan-
dard MS-10902, and that are API CJ-4 certified
and meet the requirements of FCA LLC.
Engine Oil Viscosity (SAE Grade) — 3.0L
Diesel Engine
CAUTION!
Your vehicle is equipped with an advanced
technology Diesel Engine and an emission
device designed to limit Diesel Particulate
Emissions from being released into the atmo-
sphere. The durability of your engine and life
(Continued)