oil temperature JEEP COMMANDER 2006 1.G Owners Manual

13. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.CAUTION!
Driving with a hot engine 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”, and you hear continuous chimes, 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. If you decide to look under the hood your-
self, refer to Section 7 of this manual. Follow the
warnings under “Cooling System Pressure Cap.”
182 UNDERSTANDING YOUR INSTRUMENT PANEL

After Starting
The idle speed will automatically decrease as the engine
warms up.
CAUTION!
Long periods of engine idling, especially at high
engine speeds can cause excessive exhaust tempera-
tures which can damage your vehicle. Do not leave
your vehicle unattended with the engine running.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms engine coolant and
permits quicker starts in cold weather. Connect the cord
to a standard 110-115 volt AC electrical outlet with
grounded, three wire extension cord.
Use the heater when temperatures below 0°F (-18°C) are
expected to last for several days.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.
STARTING AND OPERATING 255
5

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
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 level range. Adding 1 U.S. Quart
(0.95L) of oil when the level is at the bottom of the SAFE
range will result in the level being at the top of the SAFE
range.
CAUTION!
Overfilling or underfilling the crankcase will cause
aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
Road conditions as well as your kind of driving affect the
interval at which your oil should be changed. Check the
following to determine 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 (16.2 km)
352 MAINTAINING YOUR VEHICLE

American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils that
meet the requirements of
DaimlerChrysler Material Stan-
dard MS-6395. Use Moparor an
equivalent oil meeting the specifi-
cation MS-6395.
Engine Oil Viscosity (3.7L and 4.7L Engines)
SAE 5W-30 engine oil is recommended for all operating
temperatures. This engine oil improves low tempera-
ture starting and vehicle fuel economy. Your engine oil
filler cap also shows the recommended engine oil
viscosity for your vehicle.
Engine Oil Viscosity (5.7L Engines)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low tempera-
ture starting and vehicle fuel economy. Your engine oil
filler cap also shows the recommended engine oil
viscosity for your vehicle.
For information on engine oil filler cap location, see the
Engine Compartment illustration in this section.
Lubricants which do not have both, the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
NOTE:Vehicles equipped with 5.7L engines must use
5W–20 oil. Failure to do so may result in improper
operation of the Multiple Displacement System (MDS).
Refer to “Multi Displacement System” in Section 5 of this
manual.
354 MAINTAINING YOUR VEHICLE

5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the “HOT”
(upper) reference holes on the dipstick at normal operat-
ing temperature. The fluid level is only valid if there is a
solid coating of oil is seen on both sides of the dipstick. If
the fluid is low, add as required into the dipstick tube.Do
not overfill.After adding any quantity of oil through the
oil fill tube, wait a minimum of two (2) minutes for the oil
to fully drain into the transmission before rechecking the
fluid level.
NOTE:If it is necessary to check the transmissionbelow
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at approximately 70°F (21°C) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the “HOT”(upper) reference holes when the transmission reaches
180°F (82°C). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50°F
(10°C) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release parking brake.
To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
374 MAINTAINING YOUR VEHICLE

Schedule “B”
Follow this schedule if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Excessive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Trailer towing
•Heavy loading
•Taxi, police, or delivery service (commercial service)
•Off-road or desert driving
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you, change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance rec-
ommendations in “Maintenance Schedule B.”
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first, and follow
“Schedule B” of the “Maintenance Schedules” section of
this manual.
SCHEDULE “B” 395
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Block Heater......................... 255
Break-In Recommendations................ 68
Compartment......................... 346
Cooling ............................. 365
Exhaust Gas Caution.................. 69,308
Fails to Start.......................... 254
Flooded, Starting...................... 254
Fuel Requirements..................305,388
Jump Starting......................... 338
Oil ..............................352,388
Oil Change Interval.................... 352
Oil Disposal.......................... 355
OilFilter ............................ 355
Oil Filter Disposal...................... 355
Oil Selection.......................... 388
Overheating.......................... 331
Starting............................. 253
Temperature Gauge..................... 182
Engine Oil Viscosity...................... 354Engine Oil Viscosity Chart................. 354
Enhanced Accident Response Feature.......... 55
Entry System, Illuminated.................. 18
Event Data Recorder...................... 56
Exhaust Gas Caution................... 69,308
Exhaust System......................... 364
Extender, Seat Belt........................ 41
ExteriorFinishCare ...................... 377
Filters
Air Cleaner.......................... 358
Engine Oil........................... 355
FinishCare ............................ 377
Flashers.............................. 330
Hazard Warning....................... 330
Turn Signal.......................... 178
Flipper Glass, Liftgate..................... 28
Flooded Engine Starting................... 254
Fluid Capacities......................... 388
424 INDEX

Fluid Leaks............................. 71
Fluid Level Checks
Automatic Transmission...............372,373
Engine Oil........................... 352
Power Steering........................ 361
Fluids, Lubricants and Genuine Parts.......... 389
Fog Lights..........................126,185
Fold and Tumble Rear Seat................. 109
Folding Rear Seat.....................109,113
Four Wheel Drive....................... 264
Operation........................... 264
Systems............................. 264
Four Wheel Drive Operation................ 264
Four-Way Hazard Flasher.................. 330
Freeing A Stuck Vehicle................... 263
Front Axle (Differential)................... 376
Fuel................................. 305
Filler Cap (Gas Cap).................... 309
Filler Door (Gas Cap)................... 309Gasoline............................ 305
Gauge.............................. 184
Materials Added....................... 307
Octane Rating........................ 305
Requirements......................... 388
Tank Capacity........................ 388
Fuel System Caution...................307,310
Fuses................................ 381
Garage Door Opener (HomeLink) ........... 152
Gas Cap (Fuel Filler Cap)...............309,348
Gasoline (Fuel)......................... 305
Gasoline, Reformulated................... 306
Gasoline/Oxygenate Blends................ 306
Gauges
Coolant Temperature.................... 182
Fuel................................ 184
Speedometer......................... 178
Tachometer.......................... 180
INDEX 425
10

Oil ................................ 353
Speed Control (Cruise Control).............. 148
Speedometer........................... 178
Starting............................... 253
Automatic Transmission................. 253
Cold Weather......................254,255
Emergency (Jump Starting)............... 338
Engine Block Heater.................... 255
Engine Fails to Start.................... 254
Steering
Power...........................274,361
Wheel, Tilt........................... 131
Steering Wheel Mounted Sound System
Controls............................. 230
Storage............................... 386
Storage, Vehicle......................246,386
Storing Your Vehicle...................... 386
Sun Roof.............................. 159
Sun Visor Extension....................... 82Supplemental Restraint System - Airbag........ 42
Tachometer............................ 180
Temperature Control, Automatic (ATC)........ 237
Temperature Gauge, Engine Coolant.......... 182
Tether Anchor, Child Restraint............... 63
Tilt Steering Column..................... 131
Time Delay, Headlight.................... 127
Tire and Loading Information Placard......... 285
Tire Identification Number (TIN)............. 284
Tire Markings.......................... 281
Tire Safety Information.................... 281
Tires ............................ 71,289,417
Air Pressure.......................... 290
Alignment and Balance.................. 296
Chains.............................. 303
Changing............................ 332
General Information.................... 289
High Speed.......................... 292
434 INDEX