
ENGINE COMPARTMENT — 6.7L DIESEL
1 — Battery6 — Washer Fluid Reservoir
2 — Engine Coolant Reservoir 7 — Integrated Power Module
3 — Automatic Transmission Dipstick (If Equipped) 8 — Engine Oil Fill
4 — Engine Oil Dipstick 9 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 10 — Air Cleaner Filter
6
MAINTAINING YOUR VEHICLE 99

parked overnight. When checking oil after operating the
engine, first ensure the engine is at full operating tem-
perature, then wait for 30 minutes after engine shutdown
to check the oil.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 “ADD”
mark. The total capacity from the low mark to the high
mark is 2 qts (1.9L).
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
Never operate the engine with oil level below the “ADD”
mark or above the upper “SAFE” mark.
Change Engine Oil
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
1 — ADD Range
2 — Full Mark
3 — SAFE Range
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MAINTAINING YOUR VEHICLE 101

2. The vehicle must be on level ground.
3. Fully apply the parking brake and press the brake
pedal.
4. Place the shift lever momentarily into each gear posi-
tion ending with the shift lever in PARK.
5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the “HOT”
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that solid coating of oil is seen on
both sides of the dipstick. If the fluid is low, add as
required into the dipstick tube.Do not overfill.After
adding any quantity of oil through the oil fill tube, wait
a minimum of two minutes for the oil to fully drain into
the transmission before rechecking the fluid level. NOTE:
If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at approximately 70°F (21°C) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the “HOT”
(upper) reference holes when the transmission reaches
180°F (82°C). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50°F
(10°C) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release parking brake.6
MAINTAINING YOUR VEHICLE 125

To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
Fluid Level Check – Chassis Cab Only
Check the fluid level while the transmission is at normal
operating temperature. This occurs after at least 15 miles
(25 km) of driving. At normal operating temperature, the
fluid cannot be held comfortably between the fingertips.
To properly check the transmission fluid, the following
procedure must be used.
1. The vehicle must be on level ground.
2. Operate the engine at idle speed for a minimum of
60 seconds and normal operating temperature.3. Fully apply the parking brake and press the brake
pedal.
4. Place the shift lever momentarily into each gear posi-
tion ending with the shift lever in PARK. Make sure the
engine is running at idle speed.
5. Remove the dipstick and determine if the fluid is hot
or cold. Hot fluid is approximately 160°F to 175°F (70°C
to 82°C). This is the normal operating temperature after
the vehicle has been driven at least 15 miles (25 km). The
fluid cannot be comfortably held between the fingertips.
Only use the cold region of the dipstick as a rough
reference when doing initial oil level set after transmis-
sion rebuild or transmission refill.
6. Wipe the dipstick clean and reinsert it until seated.
126 MAINTAINING YOUR VEHICLE

7. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the HOT
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that a solid coating of oil is seen
on both sides of the dipstick. If the fluid is low, add
MOPARAS68RC Automatic Transmission Fluid or
equivalent as required into the dipstick tube. Do not
overfill. Never use any ATF other than MOPAR
AS68RC Automatic Transmission Fluid or equivalent.
After adding any quantity of oil through the dipstick
tube, wait a minimum of two minutes for the oil to fully
drain into the transmission before rechecking the fluid
level.
NOTE: If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two COLD (lower) holes on the dipstick
with the fluid at approximately 70°F to 85°F (20°C to
30°C). If the fluid level is correctly established at room temperature, it should be between the HOT (upper)
reference holes when the transmission reaches 160°F to
175°F (70°C to 82°C).
CAUTION!
Be aware that if the fluid level is below 50°F (10°C),
it may not register on the dipstick. Do not add fluid
until the temperature is elevated enough to produce
a accurate reading.
8. Check for leaks. Release the parking brake.
NOTE: To prevent dirt and water from entering the
transmission after checking or adding fluid, make sure
that the dipstick cap is properly reseated. It is normal for
the dipstick cap to spring back slightly from its fully
seated position, as long as the seal remains engaged in
the dipstick tube.
6
MAINTAINING YOUR VEHICLE 127

Coolant Capacity..................... 133
Coolant Level .................... 1 15,119
Disposal of Used Coolant ............... 119
Drain, Flush, and Refill ................ 116
Inspection .......................... 119
Points to Remember .................. 120
Pressure Cap ........................ 118
Radiator Cap ........................ 118
Selection of Coolant (Antifreeze) ....... 116,134
Diesel Exhaust Brake ...................... 50
Diesel Fuel ............................. 82
Diesel Fuel Requirements ................... 82
Bulk Storage of ....................... 84
Diesel Fuel System, Re-Priming .............. 110
Dipsticks .............................. 100
Disposal .............................. 104
Antifreeze (Engine Coolant) ............. 119
Engine Oil ......................... 104 Draining Fuel/Water Separator Filter
.......... 106
Electronic Range Select (ERS) ..............60,71
Electronic Vehicle Information Center (EVIC) ..... 25
Emergency, In Case of Jump Starting ........................ 92
Engine ................................ 99
Air Cleaner ......................... 104
Block Heater ....................... 35,49
Break-In Recommendations .............. 12
Compartment ........................ 99
Coolant (Antifreeze) .................. 134
Identification ........................ 99
Idling ............................. 44
Jump Starting ........................ 92
Oil ............................ 100,134
Oil Filler Cap ....................... 103
Oil Synthetic ........................ 104
Runaway ........................... 81
8
INDEX 165

Trip .............................17,18
Oil Change Indicator ..................... 139
Oil, Engine ............................ 134
Capacity ........................... 133
Change Interval ..................... 101
Dipstick ........................... 100
Disposal ........................... 104
Filter ........................ 100,104,134
Identification Logo ................... 102
Materials Added to ................... 104
Pressure Gauge ....................... 17
Recommendation ..................... 102
Synthetic .......................... 104
Viscosity ........................... 103
Overdrive ............................ 62,72
Overdrive OFF Switch ................... 62,72
Perform Service Indicator, Reset ............. 140Power
Take-Off Adapter ..................... 78
Take-Off Operation .................... 78
Power Steering Fluid ..................... 136
PTO (Power Take-Off) ..................... 78
Radiator Cap (Coolant Pressure Cap) ....... 116,118
Remote Control Starting System ....................... 8
Remote Starting System ..................... 8
Resetting Perform Service Indicator ........... 140
Seat Belts Reminder ........................... 24
Selection of Coolant (Antifreeze) .......... 116,134
Shifting ............................... 52
Automatic Transmission ................ 54
Manual Transmission .................. 75
168 INDEX