Page 453 of 542

MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 6.4L ...........453
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . . .454
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ........................ .454
▫ Loose Fuel Filler Cap Message .............455
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS .......................... .455
REPLACEMENT PARTS ...................456
DEALER SERVICE ...................... .456
MAINTENANCE PROCEDURES .............457
▫ Engine Oil .......................... .457
▫ Engine Oil Filter ...................... .459
▫ Engine Air Cleaner Filter .................460
▫ Accessory Drive Belt Inspection ............462
▫ Maintenance-Free Battery .................463 ▫
Air Conditioner Maintenance ..............464
▫ Front Prop Shaft Lubrication — Four-Wheel Drive
Models ............................. .470
▫ Body Lubrication ..................... .471
▫ Windshield Wiper Blades .................471
▫ Adding Washer Fluid ...................474
▫ Exhaust System ....................... .475
▫ Cooling System ....................... .476
▫ Brake System ........................ .481
▫ Rear Axle And 4x4 Front Driving Axle Fluid
Level .............................. .482
▫ Transfer Case ........................ .483
▫ Automatic Transmission — If Equipped ......484
▫ Appearance Care And Protection From
Corrosion ........................... .486
7
Page 455 of 542
ENGINE COMPARTMENT — 6.4L
1 — Coolant Pressure Bottle6 — Battery
2 — Transmission Dipstick 7 — Power Distribution Center (Fuses)
3 — Engine Oil Fill 8 — Washer Solvent
4 — Engine Oil Dipstick 9 — Power Steering Fluid Reservoir
5 — Brake Fluid Reservoir 10 — Air Cleaner Filter
7
MAINTAINING YOUR VEHICLE 453
Page 461 of 542

Engine Oil Viscosity (SAE Grade) — 6.4L Engine
Use Mopar SAE 0W-40 engine oil approved to FCA Mate-
rial Standard MS-12633 such as Pennzoil Ultra equivalent
is recommended for all operating temperatures.
The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to the “Engine Compart-
ment” illustration in this section.
Lubricants which do not have both the engine oil certifi-
cation mark and the correct SAE viscosity grade number
should not be used.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes are
followed.
Synthetic engine oils which do not have both the engine oil
certification mark and the correct SAE viscosity grade
number should not be used.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your authorized dealer, service sta-
tion or governmental agency for advice on how and where
used oil and oil filters can be safely discarded in your area.
Engine Oil Filter
The engine oil filter should be replaced with a new filter at
every engine oil change.
Engine Oil Filter Selection
The manufacturer’s engines have a full-flow type oil filter.
Use a filter of this type for replacement. The quality of
replacement filters varies considerably. Only high-quality
filters should be used to assure most efficient service.
Mopar engine oil filters are a high-quality oil filter and are
recommended.
7
MAINTAINING YOUR VEHICLE 459
Page 467 of 542

Refrigerant Recovery And Recycling R1234yf — If
Equipped
R-1234yf Air Conditioning Refrigerant is a hydrofluoole-
fine HFO that is an ozone-saving product with a low GWP
(Global Warming Potential). However, the manufacturer
recommends that air conditioning service be performed by
authorized dealer or other service facilities using recovery
and recycling equipment.
NOTE:Use only manufacturer approved A/C system
PAG compressor oil and refrigerants.
Cabin Filter Replacement (A/C Air Filter)
Refer to the “Maintenance Schedule” for the proper main-
tenance intervals.
WARNING!
Do not remove the cabin air filter while the vehicle is
running, or while the ignition is in the ACC or ON/
RUN mode. With the cabin air filter removed and the
blower operating, the blower can contact hands and
may propel dirt and debris into your eyes, resulting in
personal injury. The cabin air filter is located in the fresh air inlet behind the
glove compartment. Perform the following procedure to
replace the filter:
1. Open the glove compartment and remove all contents.
2. With the glove compartment door open, remove the
glove compartment tension tether and tether clip by
sliding the clip toward the face of the glove compart-
ment door. Lift the clip out of glove compartment door
and release into dash panel.
7
MAINTAINING YOUR VEHICLE 465
Page 509 of 542
FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
Standard Rear Tank 52 Gallons197 Liters
Optional Midship Tank 22 Gallons83 Liters
Engine Oil With Filter
6.4L Engine (We recommend you use SAE 0W-40,
Synthetic API Certified) 7 Quarts
6.6 Liters
Cooling System
6.4L Engine (We recommend you use Mopar Antifreeze/
Coolant 10 Year/150,000 Mile Formula). 16.6 Quarts
15.7 Liters
7
MAINTAINING YOUR VEHICLE 507
Page 510 of 542
FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/
Coolant 10–Year/150,000 Mile Formula OAT (Organic
Additive Technology).
Engine Oil – 6.4L Engine For best performance and maximum protection under all
types of operating conditions, the manufacturer only rec-
ommends full synthetic engine oils that meet the Ameri-
can Petroleum Institute (API) categories of SN. The
manufacturer recommends the use of Pennzoil Ultra
0W-40 or equivalent Mopar engine oil meeting the re-
quirements of FCA Material Standard MS-12633 for use
in all operating temperatures.
Engine Oil Filter – 6.4L Engine We recommend you use Mopar Engine Oil Filters.
Spark Plugs – 6.4L Engine We recommend you use Mopar Spark Plugs.
Fuel Selection – 6.4L Engine 89 Octane Recommended - 87 Octane Acceptable,
0-15% Ethanol.
508 MAINTAINING YOUR VEHICLE
Page 515 of 542
Maintenance Chart
Required Maintenance
Refer to the Maintenance Schedules on the following pages
for required maintenance.
At Every Oil Change Interval As Indicated By OilChange Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular
wear, even if it occurs before the oil indicator
system turns on.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and
park brake.
• Inspect front end, and lubricate — If equipped with
serviceable fittings.
• Lube the front drive shaft fitting (4X4 models only).
8
MAINTENANCE SCHEDULES 513
Page 516 of 542
Mileage or time passed (which-ever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. XX X XX
Inspect front suspension, tie rod
ends, and replace if necessary. XXX X X X X
Inspect the front and rear axle sur-
faces. If gear oil leakage is sus-
pected, check the fluid level. If us-
ing your vehicle for police, taxi,
fleet, off-road or frequent trailer
towing, change axle fluid. XXX X X X X
Inspect the brake linings, parking
brake function. XXX X X X X
Additional Maintenance
Replace engine air filter. XX X XX
Replace spark plugs. ** X
Flush and replace the engine cool-
ant at 10 years or 150,000 miles
(240,000 km) whichever comes
first. XX
514 MAINTENANCE SCHEDULES