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MAINTAINING YOUR VEHICLE
CONTENTS
2.7L Engine Compartment................414
3.5L Engine Compartment................415
5.7L Engine Compartment................416
Onboard Diagnostic System — OBD II........417
▫Loose Fuel Filler Cap..................417
Emissions Inspection And Maintenance
Programs............................418
Replacement Parts......................419
Dealer Service.........................420Maintenance Procedures..................420
▫Engine Oil..........................421
▫Engine Oil Filter......................425
▫Drive Belts — Check Condition And Tension . . 425
▫Spark Plugs.........................426
▫Engine Air Cleaner Filter................426
▫Fuel Filter..........................426
▫Catalytic Converter....................427
▫Maintenance-Free Battery................428
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2.7L ENGINE COMPARTMENT
1 — Fuses (Front Power Distribution Center) 6 — Air Cleaner Filter
2 — Engine Oil Dipstick 7 — Coolant Pressure Cap
3 — Brake Fluid Reservoir Access Cover 8 — Engine Oil Fill
4 — Coolant Bottle 9 — Remote Jump-Start Positive Battery Post
5 — Power Steering Fluid 10 — Washer Fluid Bottle 414 MAINTAINING YOUR VEHICLE
Page 415 of 519
3.5L ENGINE COMPARTMENT
1 — Fuses (Front Power Distribution Center) 6 — Coolant Bottle
2 — Air Cleaner Filter 7 — Engine Oil Fill
3 — Brake Fluid Reservoir Access Cover 8 — Engine Oil Dipstick
4 — Coolant Pressure Cap 9 — Washer Fluid Bottle
5 — Power Steering Fluid 10 — Remote Jump-Start Positive Battery PostMAINTAINING YOUR VEHICLE 415
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5.7L ENGINE COMPARTMENT
1 — Fuses (Front Power Distribution Center) 6 — Air Cleaner Filter
2 — Coolant Pressure Cap 7 — Engine Oil Fill
3 — Brake Fluid Reservoir Access Cover 8 — Engine Oil Dipstick
4 — Coolant Bottle 9 — Remote Jump-Start Positive Battery Post
5 — Power Steering Fluid 10 — Washer Fluid Bottle 416 MAINTAINING YOUR VEHICLE
Page 421 of 519
These items should be inspected if a malfunction is
observed or suspected.
Engine Oil
Checking Oil Level — 2.7L, 3.5L Engines
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop.
The best time to check the engine oil level is about 5
minutes after a fully warmed engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain
the oil level between the MIN and MAX markings on the
dipstick. Adding 1.0 quart (1.0L) of oil when the reading
is at the MIN mark will result in a MAX reading on these
engines.
CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 421
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Checking Oil Level — 5.7L Engine
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop.
The best time to check the engine oil level is about 5
minutes after a fully warmed engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain
the oil level in the “SAFE” range. Adding 1.0 quart (1.0L)
of oil when the reading is at the bottom of the “SAFE”
range will result in an oil level at the top of the “SAFE”
range on these engines.
CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Engine Oil Dipstick
422 MAINTAINING YOUR VEHICLE
Page 423 of 519

Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
Refer to “Maintenance Schedule” in Section 8 of this
manual for information on this system.
NOTE: Under no circumstances should oil change
intervals exceed 6,000 miles (10 000 km) or 6 months,
whichever occurs first.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacture only
recommends engine oils that are API certified and meet
the requirements of DaimlerChrysler Material Standard
MS-6395.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacture only recommends
API Certified engine oils.
Engine Oil Viscosity (SAE Grade) — 2.7L and 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.
MAINTAINING YOUR VEHICLE 423
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The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to the “Engine Com-
partment” 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 “Multi Displacement System” under “Starting
and Operating” for more details.
Lubricants, which do not have both, the engine oil
certification mark and the correct SAE viscosity grade
number should not be used.
Engine Oil Viscosity (SAE Grade) — 3.5L Engine
SAE 10W-30 engine oil is preferred for use in 3.5L
Engines for all operating temperatures.The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to the “Engine Com-
partment” illustration in this section.
Lubricants, which do not have both, the engine oil
certification mark and the correct SAE viscosity grade
number should not be used.
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 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.
424 MAINTAINING YOUR VEHICLE