Page 297 of 395
MAINTAINING YOUR VEHICLE
CONTENTS
mEngine Compartment ± 6.1L...............300
mOnboard Diagnostic System Ð OBD II........301
NLoose Fuel Filler Cap Message............302
mEmissions Inspection And Maintenance
Programs............................302
mReplacement Parts......................304
mDealer Service.........................304
mMaintenance Procedures..................305
NEngine Oil..........................305NEngine Oil Filter......................308
NDrive Belts Ð Check Condition And
Tensioner...........................309
NSpark Plugs.........................309
NEngine Air Cleaner Filter................310
NFuel Filter..........................310
NCatalytic Converter....................310
NMaintenance-Free Battery................312
NAir Conditioner Maintenance.............313
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Engine Oil Viscosity Chart
The proper SAE viscosity grade of engine oil should be
selected based on the following recommendation and be
within the operating temperature shown in the engine oil
viscosity chart.
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
it's performance may be impaired by supplemental ad-
ditives.
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 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 Oil Filter
The engine oil filter should be replaced at every engine
oil change.
308 MAINTAINING YOUR VEHICLE
Page 309 of 395

Engine Oil Filter Selection
The manufacturer's engines have a full-flow type oil
filter. Use a filter of this type for replacement. The quality
of replacement filters varies considerably. Only high
quality filters should be used to assure most efficient
service. Mopar Engine Oil Filters are a high quality oil
filter and are recommended.
Drive Belts Ð Check Condition and Tensioner
Belt tension is controlled by means of an automatic
tensioner. No belt tension adjustments are required.
However, belt and belt tensioner condition should be
inspected at the specified intervals, and replaced if re-
quired. See your authorized dealer for service.
At the mileage indicated on the appropriate ªMainte-
nance Schedule,º all belts and tensioner should be
checked for condition. Improper belt tension can cause
belt slippage and failure.Belts should be inspected for evidence of cuts, cracks,
glazing, or frayed cords and replaced if there is indication
of damage which could result in belt failure. Low gen-
erator belt tension can cause battery failure.
Also check belt routing to make sure there is no interfer-
ence between the belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the specified mileage. The entire set should be
replaced if there is any malfunction due to a faulty spark
plug. Malfunctioning spark plugs can damage the cata-
lytic converter. For proper type of replacement spark
plugs, refer to the ªVehicle Emission Control Informa-
tionº label in the engine compartment.
MAINTAINING YOUR VEHICLE 309
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Page 346 of 395
FLUID CAPACITIES
U.S. Metric
Fuel (Approximate)21 Gallons 79 Liters
Engine Oil with Filter
6.1 Liter Engine (SAE 0W-40, API Certified) 7 Qts 6.6 Liters
Cooling System *
6.1 Liter Engine (MopartEngine Coolant/Antifreeze 5 Year/
100,000 Mile Formula)14.8 Qts 14 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
346 MAINTAINING YOUR VEHICLE
Page 347 of 395
FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology)
Engine Oil (6.1L Engine) Use API Certified SM/CF synthetic engine oil. SAE 0W-40 is recommended,
meeting the requirements of DaimlerChrysler Material Standard MS-10725.
Oil Filter (6.1L Engine) MopartOil Filter (P/N 05281090) or equivalent.
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine com-
partment.
Fuel Selection (6.1L Engine) Premium Unleaded 91 Octane Only or higher.
MAINTAINING YOUR VEHICLE 347
7
Page 352 of 395
Once a Month
²Check the tire pressure and look for unusual wear or
damage.
²Inspect the battery and clean and tighten the terminals
as required.
²Check the fluid levels of the coolant reservoir, brake
master cylinder, and add as needed.
²Check all lights and all other electrical items for correct
operation.At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect brake hoses.
²Check the engine coolant/anti-freeze level, hoses, and
clamps.
352 MAINTENANCE SCHEDULES
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Miles 3,000 6,000 9,000 12,000 15,000
(Kilometers) (5 000) (10 000) (15 000) (20 000) (25 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Inspect the engine air cleaner filter, replace if nec-
essary.X
Drain and refill the front and rear axles. X
Inspect the brake linings. X
354 SCHEDULE ªBº
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Page 355 of 395
Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (30 000) (35 000) (40 000) (45 000) (50 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Inspect the engine air cleaner filter, replace if nec-
essary.X
Inspect the PCV Valve, replace if necessary.LX
Drain and refill the front and rear axles. X
Inspect the brake linings. X
Drain the transfer case and refill.X
SCHEDULE ªBº 355
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