Page 383 of 490
MAINTAINING YOUR VEHICLE
CONTENTS
mEngine Compartment ± 3.7L...............386
mEngine Compartment ± 4.7L...............387
mEngine Compartment ± 5.7L...............388
mEngine Compartment ± 3.0L Diesel..........389
mOnboard Diagnostic System Ð OBD II........390
NLoose Fuel Filler Cap Message............391
mEmissions Inspection And Maintenance
Programs............................391
mReplacement Parts......................393mDealer Service.........................393
mMaintenance Procedures..................394
NEngine Oil..........................394
NDrive Belts Ð Check Condition And Tension . . 398
NSpark Plugs.........................398
NSpark Plug Wires.....................398
NEngine Air Cleaner Filter................398
NCatalytic Converter....................399
NCrankcase Emission Control System........400
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Page 396 of 490

Engine Oil Viscosity (3.7L/4.7L/5.7L Engines)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your vehicle. For information on
engine oil filler cap location, see the ªEngine Compart-
mentº illustration in this section.
NOTE:Vehicles equipped with a 5.7L engine must use
SAE 5W-20 oil. Failure to do so may result in improper
operation of the Multiple Displacement System (MDS).
Refer to ªMulti Displacement Systemº in Section 5 for
more details.
Lubricants which do not have both, the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
Engine Oil Viscosity (3.0L Diesel Engine)
CAUTION!
Your vehicle is equipped with an advanced technol-
ogy Diesel Engine and an emission device designed
to limit Diesel Particulate Emissions from being
released into the atmosphere. The durability of your
engine and life expectancy of this diesel particulate
filter emission device is highly dependent on the use
of the correct engine oil.
In order to protect your engine and emission system, use
only SAE 5W-30 Synthetic Engine Oil that meets
DaimlerChrysler Material Standard MS-11106, Mercedes
Benz MB 229.31 or MB 229.51, and ACEA C3 qualified
engine oils.
396 MAINTAINING YOUR VEHICLE
Page 397 of 490

Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes
are followed.
Materials Added to Engine Oils
The manufacturerstrongly recommendsagainst 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 theenvironment. Contact your local authorized dealer, ser-
vice 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 with a new filter
at every oil change.
Engine Oil Filter Selection
The manufacturer's engines have a full-flow type dispos-
able 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. Mopartengine oil filters are high quality oil
filters and are recommended.
MAINTAINING YOUR VEHICLE 397
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Page 440 of 490
FLUIDS AND CAPACITIES
U.S. Metric
Fuel (Approximate)
3.7/4.7/5.7L Gasoline Engines 21 Gallons 79 Liters
3.0L Diesel Engine 22 Gallons 83 Liters
Engine Oil with Filter
3.7 Liter Engine (SAE 5W-20, API Certified) 5 Qts 4.7 Liters
4.7 Liter Engine (SAE 5W-20, API Certified) 6 Qts 5.7 Liters
5.7 Liter Engine (SAE 5W-20, API Certified) 7 Qts 6.6 Liters
3.0 Liter Diesel Engine (SAE 5W-30 Synthetic, API Certified Low Ash) 10 Qts 9.5 Liters
Cooling System *
3.7 Liter Engine (MopartEngine Coolant/Antifreeze 5 Year/100,000 Mile Formula) 9 Qts 10 Liters
4.7 Liter Engine (MopartEngine Coolant/Antifreeze 5 Year/100,000 Mile Formula) 14.5 Qts 13.7 Liters
5.7 Liter Engine (MopartEngine Coolant/Antifreeze 5 Year/100,000 Mile Formula) 14.5 Qts 13.7 Liters
3.0 Liter Diesel Engine (MopartAntifreeze/Engine Coolant 5 Year/100,000 Mile
Formula)14 Qts 13.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
440 MAINTAINING YOUR VEHICLE
Page 441 of 490

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hy-
brid Organic Additive Technology)
Engine Oil (3.7L/4.7L/5.7L Engines) Use API Certified SAE 5W-20 Engine Oil, meeting the requirements of
DaimlerChrysler Material Standard MS-6395. Refer to your engine oil
filler cap for correct SAE grade.
Engine Oil (3.0L Diesel Engine)
Use API Certified SAE 5W-30 Synthetic Low Ash Engine Oil, meeting the
requirements of DaimlerChrysler Material Standard MS-11106, Mercedes
Benz MB 229.31 or 229.51, and ACEA C3 qualified engine oils.
Oil Filter (3.7/4.7/5.7L Gasoline Engines) MopartOil Filter (P/N 05281090)
Oil Filter (3.0L Diesel Engine) MopartOil Filter (P/N 05175571AA)
Spark Plugs (3.7L Engine) ZFR6F-11G (Gap 0.043º)
Spark Plugs (4.7L Engine) Upper Bank Ð FR8TE2 (Gap 0.040º) Lower Bank Ð FR8T1332 (Gap
0.050º)
Spark Plugs (5.7L Engine) REC14MCC4 (Gap 0.043º)
Fuel Selection (3.7L and 4.7L Engines) 87 Octane
MAINTAINING YOUR VEHICLE 441
7
Page 446 of 490
At Each Oil Change
²Change the engine oil filter.
²Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Required Maintenance Intervals
NOTE:** Vehicles built with the 4.7L engine are
equipped with sixteen spark plugs, one set is located on
the top of the engine under the coils and the second set is
located on the side of the engine.
The spark plugs located under the coils are a standard
plug and must be change every 30,000 miles (50 000 km)
The spark plugs located on the side of the engine are a
premium plug and must be changed every 102,000 miles
(170 000 km).
446 MAINTENANCE SCHEDULES
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Perform Maintenance Every(Where time and mile-
age are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Change the engine oil and engine oil filter. 6,000 10 000 6
Rotate tires. 6,000 10 000 6
If using your vehicle for any of the following: Dusty or off-road
conditions. Inspect the engine air cleaner filter, replace if neces-
sary.12,000 20 000 12
Inspect the brake linings, replace if necessary. 12,000 20 000 12
Inspect the front & rear axle fluid, change if using your vehicle for
police, taxi, fleet, off-road or frequent trailer towing.18,000 30 000 18
Inspect the CV joints. Perform the first inspection at 12,000 miles (20
000 km) or 12 months.24,000 40 000 24
Inspect exhaust system. Perform the first inspection at 12,000 miles
(20 000 km) or 12 months.24,000 40 000 24
Inspect the front suspension, tie rod ends and boot seals, replace if
necessary.24,000 40 000 24
Replace the engine air cleaner filter.30,000 50 000 30
MAINTENANCE SCHEDULES 447
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Page 451 of 490
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.
²Inspect engine accessory drive belts. Replace as neces-
sary.
²Inspect for the presence of water in the fuel filter/
water separator unit.
MAINTENANCE SCHEDULES 451
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