oil JEEP COMMANDER 2009 1.G User Guide

Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant, during summer, to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50%
concentration is recommended. Refer to Fluids, Lubri-
cants, and Genuine Parts in Section 7 for the proper
coolant type.
When using the air conditioner in extremely heavy traffic, in
hot weather, especially when towing a trailer, additional
engine cooling may be required. If this situation is encoun-
tered, operate the transmission in a lower gear to increase
engine RPM, coolant flow and fan speed. When stopped inheavy traffic, it may be necessary to shift into NEUTRAL
and depress the accelerator slightly for fast idle operation to
increase coolant flow and fan speed.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months, make
sure the air intake, located directly in front of the wind-
shield, is free of ice, slush, snow, or other obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will ensure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
284 UNDERSTANDING YOUR INSTRUMENT PANEL

▫General Information................... 366
Fuel Requirements..................... 367
▫3.7/4.7L Engine (If Equipped)............ 367
▫5.7L Engine (If Equipped)............... 367
▫Reformulated Gasoline................. 368
▫Gasoline/Oxygenate Blends............. 368
▫E-85 Usage In Non-Flex Fuel Vehicles...... 369
▫MMT In Gasoline.................... 369
▫Materials Added To Fuel............... 370
▫Fuel System Cautions.................. 370
▫Carbon Monoxide Warnings............. 371
Flexible Fuel (4.7L Engine Only) —
If Equipped........................... 372▫E-85 General Information............... 372
▫Ethanol Fuel (E-85)................... 373
▫Fuel Requirements.................... 373
▫Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles...... 374
▫Starting........................... 374
▫Cruising Range...................... 374
▫Replacement Parts.................... 375
Adding Fuel......................... 375
▫Fuel Filler Cap (Gas Cap)............... 375
Vehicle Loading....................... 378
▫Certification Label.................... 378
290 STARTING AND OPERATING

release the accelerator pedal, turn the ignition switch to the
LOCK position, wait 10 to 15 seconds, then repeat the
normal starting procedure.
CAUTION!
To prevent damage to the starter, wait 10 to 15 sec-
onds before trying again.
After Starting
The idle speed is controlled automatically and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the heater cord to a
ground-fault interrupter protected 110-115 Volt AC electrical
outlet with a grounded, three-wire extension cord.
Use the heater when temperatures below 0°F (-18°C) are
expected to last for several days.The block heater must be plugged in at least one hour to
have an adequate warming effect on the coolant.
The engine block heater cord is located:
•3.7L/4.7L Engine — coiled and strapped to the engine
oil dipstick tube.
•5.7L Engine — bundled and fastened to the injector
harness.
WARNING!
Remember to disconnect the cord before driving.
Damage to the 110-115 Volt AC electrical cord could
cause electrocution.
296 STARTING AND OPERATING

and/or the flow rate is reduced. If you must cross
flowing water avoid depths in excess of 9 in (23 cm). The
flowing water can erode the streambed causing your
vehicle to sink into deeper water. Determine exit point(s)
that are downstream of your entry point to allow for
drifting.
Standing Water
Avoid driving in standing water deeper than 20 in
(51 cm), and reduce speed appropriately to minimize
wave effects. Maximum speed in 20 in (51 cm) of water is
less than 5 mph (8 km/h).
Maintenance
After driving through deep water, inspect your vehicle
fluids and lubricants (engine oil, transmission oil, axle,
transfer case) to assure the fluids have not been contami-
nated. Contaminated fluid (milky, foamy in appearance)
should be flushed/changed as soon as possible to pre-
vent component damage.Driving In Snow, Mud And Sand
In heavy snow, when pulling a load, or for additional
control at slower speeds, shift the transmission to a low
gear and shift the transfer case to 4WD LOW if necessary.
Refer to “Four-Wheel Drive Operation” in this section.
Do not shift to a lower gear than necessary to maintain
forward motion. Over-revving the engine can spin the
wheels and traction will be lost.
Avoid abrupt downshifts on icy or slippery roads, be-
cause engine braking may cause skidding and loss of
control.
Hill Climbing
NOTE:Before attempting to climb a hill, determine the
conditions at the crest and/or on the other side.
Before climbing a steep hill,shift the transmission to a
lower gear and shift the transfer case to 4WD LOW. Use
first gear and 4WD LOW for very steep hills.
314 STARTING AND OPERATING

WARNING!
Tires and the spare tire should be replaced after six
years, regardless of the remaining tread. Failure to
follow this warning can result in sudden tire failure.
You could lose control and have an accident resulting
in serious injury or death.
Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed. (Refer to the paragraph on
“Tread Wear Indicators”). Refer to the “Tire and Loading
Information” placard for the size designation of your
tires. The service description and load identification will
be found on the original equipment tire. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle. We recommend
that you contact your original equipment or an autho-
rized tire dealer with any questions you may have on tire
specifications or capability.
STARTING AND OPERATING 353
5

E-85 Usage In Non-Flex Fuel Vehicles
Non-FFV vehicles are compatible with gasoline contain-
ing 10% ethanol (E10). Gasoline with higher ethanol
content may void the vehicle’s warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•operate in a lean mode
•OBD II “Malfunction Indicator Light” on
•poor engine performance
•poor cold start and cold drivability
•increased risk for fuel system component corrosion
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
•drain the fuel tank (see your authorized dealer)
•change the engine oil and oil filter
•disconnect and reconnect the battery to reset the
engine controller memory
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emission system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer if the
gasoline contains MMT.
STARTING AND OPERATING 369
5

For best results, a refueling pattern that avoids alternat-
ing between E-85 and unleaded gasoline is recom-
mended.
When you do switch fuel types it is recommended that:
•you do not add less than 5 gal (19 L) when refueling
•you drive the vehicle immediately after refueling for at
least 5 mi (8 km)
Observing these precautions will avoid possible hard
starting and/or significant deterioration in drivability
during warm up.
NOTE:Use seasonally adjusted E-85 fuel (ASTM
D5798). With non-seasonally adjusted E-85 fuel, you may
experience hard starting and rough idle following start
up even if the above recommendations are followed,
especially when the ambient temperature is below 32°F
(0°C).
Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) and Gasoline Vehicles
Whether operating the vehicle on an E-85 ethanol fuel or
unleaded gasoline, the engine oil requirements are the
same. Refer to “Maintenance Procedures” in Section 7 of
this manual for the proper quality and viscosity engine
oil.
Starting
The characteristics of E-85 fuel make it unsuitable for use
when ambient temperatures fall below 0°F (-18°C). In the
range of 0° to 32°F (-18° to 0°C), you may experience an
increase in the time it takes for your engine to start, and
a deterioration in drivability (sags and/or hesitations)
until the engine is fully warmed up.
Cruising Range
Because E-85 fuel contains less energy per gallon/liter
than gasoline, you will experience an increase in fuel
374 STARTING AND OPERATING

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.7L.............. 415
Engine Compartment – 4.7L.............. 416
Engine Compartment – 5.7L.............. 417
Onboard Diagnostic System — OBD II....... 418
▫Loose Fuel Filler Cap Message........... 418
Emissions Inspection And Maintenance
Programs............................ 419
Replacement Parts..................... 421
Dealer Service........................ 421Maintenance Procedures................. 422
▫Engine Oil......................... 422
▫Engine Air Cleaner Filter............... 424
▫Maintenance-Free Battery............... 425
▫Air Conditioner Maintenance............ 426
▫Body Lubrication..................... 427
▫Windshield Wiper Blades............... 428
▫Adding Washer Fluid.................. 428
▫Exhaust System...................... 429
7

ENGINE COMPARTMENT – 3.7L
1 — Engine Coolant Reservoir 6 — Washer Fluid Reservoir
2 — Power Distribution Center 7 — Engine Oil Dipstick
3 — Brake Fluid Reservoir 8 — Engine Oil Fill
4 — Integrated Power Module 9 — Coolant Pressure Cap
5 — Battery 10 — Air Cleaner FilterMAINTAINING YOUR VEHICLE 4157

ENGINE COMPARTMENT – 4.7L
1 — Engine Coolant Reservoir 7 — Battery
2 — Automatic Transmission Dipstick 8 — Washer Fluid Reservoir
3 — Engine Oil Dipstick 9 — Engine Oil Fill
4 — Power Distribution Center 10 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 11 — Air Cleaner Filter
6 — Integrated Power Module 416 MAINTAINING YOUR VEHICLE