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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