Page 463 of 599

CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads HOT
(H), pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on HOT (H), and you hear continuous
chimes, turn the engine off immediately and call for
service.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure
that the wheel is properly mounted to the vehicle. Any
time a wheel has been removed and reinstalled on the
vehicle the lug nuts/bolts should be torqued using a
properly calibrated torque wrench.
Torque Specifications
Lug Nut/BoltTorque Lug Nut/
Bolt
Type **Lug
Nut/Bolt Size Lug Nut/
Bolt
Socket Size
120-150 Ft-Lbs (160-200 N·m) Cone M14 x
1.5022 mm
130-160 Ft-Lbs (190-220 N·m) Flanged
**Use only Chrysler recommended lug nuts/bolts and
clean or remove any dirt or oil before tightening.6
WHAT TO DO IN EMERGENCIES 461
Page 464 of 599
Inspect the wheel mounting surface prior to mounting
the tire and remove any corrosion or loose particles.
NOTE:Dual wheels are flat mounted, center piloted.
The lug nuts are a two-piece assembly. When the tires are
being rotated or replaced, clean these lug nuts and add
two drops of oil at the interface between the hex and the
washer. Do not oil wheel studs. For chrome wheels, do not
substitute with chrome plated wheel nuts.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
Wheel Mounting Surface
462 WHAT TO DO IN EMERGENCIES
Page 487 of 599
MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 5.7L ..........487
ENGINE COMPARTMENT — 6.4L ..........488
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .489
▫ Loose Fuel Filler Cap Message ............489
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .490
REPLACEMENT PARTS ..................491
DEALER SERVICE ..................... .492
MAINTENANCE PROCEDURES ...........492
▫ Engine Oil ......................... .493▫
Engine Oil Filter ..................... .496
▫ Engine Air Cleaner Filter ................496
▫ Accessory Drive Belt Inspection ...........500
▫ Maintenance-Free Battery ...............502
▫ Air Conditioner Maintenance .............503
▫ Front Prop Shaft Lubrication — Four-Wheel
Drive Models ....................... .504
▫ Body Lubrication .....................505
▫ Windshield Wiper Blades ...............505
▫ Adding Washer Fluid ..................510
7
Page 489 of 599
ENGINE COMPARTMENT — 5.7L
1 — Air Cleaner Filter6 — Battery
2 — Automatic Transmission Dipstick 7 — Washer Fluid Reservoir
3 — Engine Oil Fill 8 — Power Distribution Center (Fuses)
4 — Engine Oil Dipstick 9 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 10 — Engine Coolant Reservoir
7
MAINTAINING YOUR VEHICLE 487
Page 490 of 599
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
488 MAINTAINING YOUR VEHICLE
Page 495 of 599

CAUTION!(Continued)
•Your vehicle has been built with improved fluids
that protect the performance and durability of your
vehicle and also allow extended maintenance inter-
vals. Do not use chemical flushes in these compo-
nents as the chemicals can damage your engine,
transmission, power steering 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 lubrication of your vehicle’s engine, 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 one quart 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
oil aeration or loss of oil pressure. This could damage
your engine.7
MAINTAINING YOUR VEHICLE 493
Page 496 of 599

Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
Refer to the “Maintenance Schedule” for further informa-
tion.
NOTE: Under no circumstances should oil change in-
tervals exceed 8,000 miles (13,000 km) or twelve months,
whichever occurs first.
Engine Oil Selection — 5.7L 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 Chrysler Material Standard MS-6395.
Engine Oil Selection — 6.4L Engine
For best performance and maximum protection under all
types of operating conditions, the manufacturer only rec-
ommends engine oils that are API Certified and meet the
requirements of Chrysler Material Standard MS-12633.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
494 MAINTAINING YOUR VEHICLE
Page 497 of 599

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.
Engine Oil Viscosity — 5.7L Engine
MOPAR® SAE 5W-20 engine oil or equivalent Pennzoil®
or Shell Helix® is recommended for all operating tem-
peratures. This engine oil improves low temperature
starting and vehicle fuel economy.
For information on engine oil filler cap location, refer to
“Engine Compartment” in “Maintaining Your Vehicle”
for further information.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.NOTE:
For trucks with a 5.7L engine operating under a
gross combined weight rating of 14,000 lbs (6 350 kg) or
greater, MOPAR® SAE 5W-30 engine oil or equivalent
Pennzoil® or Shell Helix® is recommended for all oper-
ating temperatures.
Engine Oil Viscosity — 6.4L Engine
Use Pennzoil Ultra™ 0W–40 engine or equivalent
MOPAR® oil meeting the Chrysler Material Standard
MS-12633 for use in 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 Com-
partment” in this section.
7
MAINTAINING YOUR VEHICLE 495