2007 DODGE MAGNUM oil

control to maximum heat, the Mode control to floor, and
the fan control to HI. This allows the heater core to act as
a supplement to the radiator and aids in removing heat
from the engine cooling system.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If temperature gauge reads “H”, pull
over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the “H”, turn the engine off immediately, and call for
service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, see Section 7, Maintenance, of this
manual. Follow the warnings under the Cooling
System Pressure Cap paragraph.
WHAT TO DO IN EMERGENCIES 285
6

MAINTAINING YOUR VEHICLE
CONTENTS

2.7L Engine Compartment...............303

3.5L Engine Compartment...............304

5.7L Engine Compartment...............305

Onboard Diagnostic System — OBD II......306
▫Loose Fuel Filler Cap..................306

Emissions Inspection And Maintenance
Programs
............................307

Replacement Parts.....................308

Dealer Service........................308

Maintenance Procedures.................309
▫Engine Oil..........................309
▫Engine Oil Filter......................314▫Drive Belts — Check Condition And Tension . . 314
▫Spark Plugs.........................314
▫Engine Air Cleaner Filter................314
▫Fuel Filter..........................315
▫Catalytic Converter....................315
▫Maintenance-Free Battery................316
▫Air Conditioner Maintenance.............318
▫A/C Air Filter — If Equipped............319
▫Power Steering — Fluid Check............319
▫Front & Rear Suspension Ball Joints........320
▫Steering Linkage......................320
7

WARNING!
You can be badly injured working on or around a
motor vehicle. Only do service work for which you
have the knowledge and the proper equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
MAINTENANCE PROCEDURES
The pages that follow contain therequiredmaintenance
services determined by the engineers who designed your
vehicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items that should
operate satisfactorily without periodic maintenance.
However, if a malfunction of these items does occur, it
could adversely affect the engine or vehicle performance.
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 or before
starting the engine after it has sat overnight.
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.
MAINTAINING YOUR VEHICLE 309
7

CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
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 or before
starting the engine after it has sat overnight.
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.
Engine Oil Dipstick
Engine Oil Dipstick
310 MAINTAINING YOUR VEHICLE

CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affect the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
•Day or night temperatures are below 32°F (0°C).
•Stop and Go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, Police, or delivery service (commercial service).
•Off-Road or desert operation.
NOTE:IfANYof these apply to you, then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow schedule “B” in the
Maintenance Schedulesin this manual.
If none of these applies to you, then change your engine
oil at every interval shown on scheduleAin the
Maintenance Schedulesin this manual.
NOTE:Under no circumstances should oil change
intervals exceed 6,000 miles (10 000 km) or 6 months,
whichever comes 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.
MAINTAINING YOUR VEHICLE 311
7

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.
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 improperoperation of the Multiple Displacement System (MDS).
Refer to “Multi Displacement System” under “Starting
and Operating” for details.
In areas where these grades are not generally available,
higher SAE grades may be used. Lubricants that have
both an SAE grade number and the API Certification
Symbol or ACEA category shown on the container
should be used.
Lubricants that do not have both the engine oil certifica-
tion 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 within the operating temperatures shown in the
engine oil viscosity chart. SAE 5W-30 Engine Oil is
allowed for use in the 3.5L Engine during cold weather
only to improve cold weather starting.
312 MAINTAINING YOUR VEHICLE

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.
In areas where these grades are not generally available,
higher SAE grades may be used. Lubricants that have
both an SAE grade number and the API Certification
Symbol or ACEA category shown on the container
should be used.Lubricants that do not have both the engine oil certifica-
tion 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.
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.
10W-30 OIL VISCOSITY CHART
MAINTAINING YOUR VEHICLE 313
7

Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
Engine Oil Filter Selection
This 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. MoparEngine Oil Filters are a high quality oil
filter and are recommended.
Drive Belts — Check Condition and Tension
Belt tension is controlled by means of an automatic
tensioner. Therefore, no belt tension adjustments are
required. However, belt and belt tensioner condition
should be inspected at the specified intervals and re-
placed if required. Improper belt tension can cause belt
slippage and failure. Low generator belt tension can
cause battery failure.
At the mileage indicated in the maintenance schedule,
inspect belt and belt tensioner condition. Inspect belts for
evidence of cuts, cracks, glazing, or frayed cords and
replaced if there is indication of damage, which couldresult in belt failure. Also, check belt routing to make sure
there is no interference between the belts and other
engine components. See your authorized dealer for ser-
vice.
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 “Vehicle Emission Control Informa-
tion” label in the engine compartment.
Engine Air Cleaner Filter
For normal driving conditions, inspect and replace the
engine air cleaner filter at the intervals shown on Sched-
ule “A.” For vehicles driven frequently in dusty or under
severe conditions, inspect and replace the engine air
cleaner filter at the intervals shown on Schedule “B.”
314 MAINTAINING YOUR VEHICLE