Page 383 of 496

MAINTENANCE PROCEDURES
The pages that follow contain therequiredmaintenance
services determined by the engineers who designed your
vehicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items that should
operate satisfactorily without periodic maintenance.
However, if a malfunction of these items does occur, it
could adversely affect the engine or vehicle performance.
These items should be inspected if a malfunction is
observed or suspected.
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. The best time to check
the oil level is before starting the engine after it has been
parked overnight. When checking oil after operating the engine, first ensure the engine is at full operating tem-
perature, then wait at least 15 minutes after engine
shutdown to check the oil.
Checking the vehicle while it’s on level ground will also
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 quarts (1.9 liters).
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could dam-
age your engine.
MAINTAINING YOUR VEHICLE 383
7
Page 388 of 496

CAUTION!
Overtightening may distort the threads or damage
the filter element seal.
Install the filter as specified by the filter manufacturer.
Turn the filter 3/4 to one full turn after making contact
with the gasket.
Check the condition of the threads and sealing surface on
the oil pan and drain plug.
Install the drain plug and sealing washer and tighten to
37 ft-lbs. (50 N·m).
Use only high-quality multi-grade lubricating oil in your
Cummins Diesel Engine. Choose the correct oil for your
operating conditions as outlined in the Selection of
Engine Oil. Cummins Turbo Diesel
Fill the engine with the correct grade of new oil. The
engine capacity is 11 quarts (10.4 liters) in the crankcase
and 1 quart (.95 liter) in the lubricating oil filter.
Start the engine and operate it at idle for several minutes.
Check for leaks at the lubricating oil filter and oil pan
drain plug.
Run the engine until it has reached operating tempera-
ture, stop the engine. Wait approximately 15 minutes to
let the oil in the upper parts of the engine drain back to
the pan. Check the oil level again.
Add oil as necessary to bring the level to the “SAFE”
mark on the dipstick.
388 MAINTAINING YOUR VEHICLE
Page 487 of 496

Noise Control Maintenance .......................... 417
Tampering Prohibited ................... 418
Noise Emission Warranty ...............417,419
Occupant Restraints ....................... 31
Occupant Restraints (2500/3500/Mega Cab Only) . . 31
Odometer .......................... 182,186
Trip ............................. 182,186
Off-Pavement Driving (Off-Road) ............ 289
Off-Road Driving (Off-Pavement) ............ 289
Oil, Engine ............................ 446
Capacity ............................ 445
Change Interval ....................... 384
Dipstick ............................. 383
Disposal ............................ 389
Filter ......................... 383,386,446
Materials Added to ..................... 386
Pressure Gauge ....................... 180 Recommendation
...................... 385
Viscosity ............................ 385
Oil Filter, Change ........................ 386
Onboard Diagnostic System ................ 379
Opener, Garage Door (HomeLink ) ........... 143
Operating Precautions .................... 379
Out of Park Sense Alarm .................. 273
Outside Rearview Mirrors .................. 83
Overdrive ............................. 270
Overdrive OFF Switch .................... 270
Overhead Console .................... 136,137
Overhead Travel Information Center .......... 137
Owner’s Manual (Operator Manual) .......... 474
Panic Alarm ............................ 22
Parking Brake .......................... 290
Passenger Airbag On/Off Switch ............. 51
Passing Light ........................... 128
Pedals, Adjustable ....................... 132
INDEX 487
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Page 491 of 496

Steering Linkage ............................. 398
Power ........................... 294,397
Wheel Lock ........................... 15
Wheel, Tilt ........................... 130
Steering Wheel Mounted Sound System Controls ............................. 231
Storage, Behind the Seat ................... 159
Storage Compartment, Center Seat .........159,160
Storage, Vehicle ......................... 431
Storing Your Vehicle ...................... 431
Sun Roof .............................. 149
Supplemental Tire Pressure Information ........ 313
Synthetic Engine Oil ...................... 262
System, Navigation ...................... 225
Tachometer ............................ 179
Tailgate ............................... 171
Tether Anchor, Child Restraint .............62,66 Tilt Steering Column
..................... 130
Tire and Loading Information Placard ......300,313
Tire Identification Number (TIN) ............. 299
Tire Markings .......................... 295
Tire Safety Information .................... 295
Tires ............................ 74,304,475
Aging (Life of Tires) .................... 311
Air Pressure .......................... 304
Alignment ........................... 312
Chains .............................. 313
Changing ............................ 356
Compact Spare ........................ 308
Dual ............................ 316,364
General Information .................... 304
High Speed .......................... 306
Inflation Pressures ..................... 305
Jacking ............................. 357
Life of Tires .......................... 311
Load Capacity ..................... 300,301
INDEX 491
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