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recommended for all operating temperatures. This en-
gine oil improves low temperature starting and vehicle
fuel economy.
Materials Added To Engine Oil
The manufacturer strongly recommends against the ad-
dition of any additives (other than leak detection dyes) to
the engine oil. Engine oil is an engineered product and
its performance may be impaired by supplemental addi-
tives.
Engine Oil Filter
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information. The
engine oil filter should be changed at every engine oil
change.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your authorized dealer, service
station or governmental agency for advice on how and
where used oil and oil filters can be safely discarded in
your area.
Engine Air Cleaner Filter
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
CAUTION!
All air entering the engine intake must be filtered.
The abrasive particles in unfiltered air will cause
rapid wear to engine components.
74 MAINTAINING YOUR VEHICLE 
     
        
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MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures will influence when the “Oil
Change Required” message is displayed. Severe Operat-
ing Conditions can cause the change oil message to
illuminate as early as 3,500 miles (5,600 km) since last
reset. Have your vehicle serviced as soon as possible,
within the next 500 miles (805 km).Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Driver Informa-
tion Display (DID)” in “Understanding Your Instrument
Panel” for further information.
NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
98 MAINTENANCE SCHEDULE 
     
        
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Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Completely fill the Diesel Exhaust Fluid tank.
• Drain water from fuel filter assembly.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system
turns on.
• Inspect battery and clean and tighten terminals as required.
• Inspect automatic transmission fluid if equipped with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
100 MAINTENANCE SCHEDULE 
     
        
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WARNING!
•You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your ve-
hicle could result in a component malfunction and
effect vehicle handling and performance. This
could cause an accident.
Additional Maintenance — B6 To B20 Biodiesel
NOTE:
• Under no circumstances should oil change intervals
exceed 8,000 miles (12 875 km) or six months, which-
ever comes first when using Biodiesel blends greater
than 5% (B5).
• The owner is required to monitor mileage for B6-B20
biodiesel, the automatic oil change indicator system
does not reflect the use of biofuels.
6
MAINTENANCE SCHEDULE 103 
     
        
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GaugesVoltmeter ..............................37
Gross Axle Weight Rating ....................48
Gross Vehicle Weight Rating ..................47
Hitches Trailer Towing ..........................51
Instrument Cluster .........................12
Intervention Regeneration Strategy ...........23, 83
Maintenance Procedures .....................71
Maintenance Schedule .......................98
Manual Transmission Lubricant Selection .......................95
New Vehicle Break-In Period ...................9 Oil, Engine
......................... .21, 72, 93
Capacity ..............................92
Change Interval .........................73
Dipstick ...............................72
Disposal ..............................74
Filter ............................. .74, 93
Filter Disposal ..........................74
Materials Added To ......................74
Recommendation ........................72
Viscosity ..............................73
Power Steering Fluid .......................95
Radiator Cap (Coolant Pressure Cap) ..........85, 88
Remote Starting System ......................8
Schedule, Maintenance ......................98
Selection Of Coolant (Antifreeze) ...............93
110 INDEX