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).
Never operate the engine with oil level below the “ADD”
mark or above the upper “SAFE” mark.Change Engine Oil
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could dam-
age your engine.
Road conditions as well as your kind of driving affect the
interval at which your oil should be changed. Check the
following to determine if any apply to you:
•Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190° F (66° C ) coolant temperature).
•Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32° F (0°
C).
380 MAINTAINING YOUR VEHICLE
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.
Disposing Of Used Engine Oil And Filter
Care should be taken in disposing of the used engine
fluids from your vehicle. Used fluids, indiscriminately
discarded, can present a problem to the environment.
384 MAINTAINING YOUR VEHICLE
Manual, Service......................... 474
Manual Transmission..................272,406
Fluid Level Check...................... 406
Lubricant Selection..................... 439
Mirrors................................ 78
Automatic Dimming..................... 79
Electric Powered....................... 80
Outside.............................. 79
Rearview............................. 78
Trailer Towing......................81,334
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................375,473
Multi-Function Control Lever............... 124
New Vehicle Break-In Period................ 69
Noise Control
Maintenance.......................... 411
Tampering Prohibited................... 412
Noise Emission Warranty............... 411,413Occupant Restraints....................... 30
Occupant Restraints (2500/3500/Mega Cab Only) . . 30
Odometer..........................180,184
Trip .............................180,184
Off-Pavement Driving (Off-Road)............ 346
Off-Road Driving (Off-Pavement)............ 346
Oil, Engine............................ 438
Capacity............................ 437
Change Interval....................... 380
Dipstick............................. 379
Disposal............................ 384
Filter.........................379,382,438
Pressure Gauge....................... 178
Recommendation...................... 381
Viscosity............................ 381
Oil Filter, Change........................ 382
Onboard Diagnostic System................ 375
Opener, Garage Door (HomeLink) ........... 141
Operating Precautions.................... 375
486 INDEX
