oil viscosity JEEP COMMANDER 2008 1.G Owners Manual

For the outboard seating positions, route the tether over
the head rests, and attach the hook to the tether anchor
located on the back of the seat.
WARNING!
An incorrectly anchored tether strap could lead to
increased head motion and possible injury to the
child. Use only the anchor positions directly behind
the child seat to secure a child restraint top tether
strap.
Transporting Pets
Airbags deploying in the front seat could harm your pet.
An unrestrained pet will be thrown about and possibly
injured, or injure a passenger during panic braking or in
a collision. Pets should be restrained in the rear seat in
pet harnesses or pet carriers that are secured by seat belts.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine in
your new vehicle.
Drive moderately during the first 300 miles (500 km).
After the initial 60 miles (100 km), speeds up to 50 or 55
mph (80 or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration, within the
limits of local traffic laws, contributes to a good break-in.
Wide-open throttle acceleration in low gear can be detri-
mental and should be avoided.
The engine oil installed in the engine at the factory is a
high quality energy conserving type lubricant. Oil
changes should be consistent with anticipated climate
conditions under which vehicle operations will occur.
The recommended viscosity and quality grades are
shown in Section 7 of this manual. NON-DETERGENT
OR STRAIGHT MINERAL OILS MUST NEVER BE
USED.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69
2

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 ªMaintenance Proceduresº 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 0ÉF (-18ÉC). In the
range of 0ÉF (-18ÉC) to 32ÉF (0ÉC), 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 than
gasoline, you will experience an increase in fuel con-
sumption. You can expect your MPG and your driving
range to decrease by about 30% compared to gasoline
operation.
Replacement Parts
Many components in your Flexible Fuel Vehicle (FFV) are
designed to be compatible with ethanol. Always be sure
that your vehicle is serviced with correct ethanol com-
patible parts.
340 STARTING AND OPERATING

CAUTION!
Overfilling or underfilling the crankcase will cause
aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
Refer to the Maintenance Schedule for recommended
engine oil change intervals.
Engine Oil Selection
For best performance and maximum protection for all
engines under all types of operating conditions, the
manufacturer 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
manufacturer only recommends
API Certified engine oils.
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, refer to the ªEngine Compartmentº illustration
in this section.
390 MAINTAINING YOUR VEHICLE

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.
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) toengine oil. Engine oil is an engineered product and it's
performance may be impaired by supplemental addi-
tives.
Disposing of Used Engine Oil and Oil Filters
Care should be taken in disposing of the 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 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.
MAINTAINING YOUR VEHICLE 391
7

Starting............................. 277
Temperature Gauge..................... 191
Engine Oil Viscosity...................... 390
Engine Oil Viscosity Chart................. 390
Enhanced Accident Response Feature.......... 56
Entry System, Illuminated.................. 21
Event Data Recorder...................... 58
Exhaust Gas Caution.................38,70,337
Exhaust System......................... 401
Extender, Seat Belt........................ 48
Exterior Finish Care...................... 415
Filters
Air Cleaner.......................... 393
Engine Oil........................... 391
Engine Oil Disposal.................... 391
Finish Care............................ 415
Flashers.............................. 366
Hazard Warning....................... 366Turn Signal.....................187,430,432
Flexible Fuel Vehicles
Cruising Range........................ 340
Engine Oil........................... 340
Fuel Requirements..................337,339
Replacement Parts..................... 340
Starting............................. 340
Flipper Glass, Liftgate..................... 35
Flooded Engine Starting................... 279
Fluid Capacities......................... 435
Fluid Leaks............................. 72
Fluid Level Checks
Automatic Transmission............... 411,412
Engine Oil........................... 389
Power Steering........................ 398
Fluids, Lubricants and Genuine Parts.......... 436
Fog Light Service........................ 431
Fog Lights.......................128,194,431
Fold and Tumble Rear Seat................. 113
INDEX 463
10

Modifications/Alterations, Vehicle............. 9
Monitor, Tire Pressure System............... 323
Mopar Parts.........................388,451
MP3 Player............................ 239
Multi-Displacement Engine System........... 306
Multi-Function Control Lever............... 124
Navigation Radio........................ 242
Navigation System....................... 242
New Vehicle Break-In Period................ 69
Occupant Restraints....................... 38
Octane Rating, Gasoline (Fuel)............333,334
Odometer..........................192,193
Trip ................................ 192
Off-Pavement Driving (Off-Road)..........296,414
Off-Road Driving (Off-Pavement)..........296,414
Oil Change Indicator..................... 200
Oil Change Indicator, Reset................. 200Oil, Engine............................ 389
Capacity............................ 435
Change Interval....................... 390
Dipstick............................. 389
Disposal............................ 391
Filter............................... 391
Filter Disposal........................ 391
Identification Logo..................... 390
Materials Added to..................... 391
Pressure Warning Light.................. 189
Recommendation...................390,435
Synthetic............................ 391
Viscosity..........................390,435
Onboard Diagnostic System..............385,386
Opener, Garage Door (HomeLinkt) ........... 159
Outside Rearview Mirrors.................. 79
Overdrive............................. 286
Overdrive OFF Switch.................... 286
Overhead Console....................... 158
INDEX 469
10

Maintenance.......................... 411
Range Indicator....................... 194
Shifting............................. 281
Transmitter Battery Service (Remote Keyless
Entry)................................. 25
Transmitter, Garage Door Opener (HomeLinkt) . . 159
Transmitter Programming (Remote Keyless
Entry)................................. 21
Transmitter, Remote Keyless Entry (RKE)........ 21
Tread Wear Indicators.................... 319
Turn Signals...................129,187,430,432
UCI Connector......................... 244
UConnectŸ (Hands-Free Phone).............. 82
Underhood Fuses.....................422,425
Uniform Tire Quality Grades................ 454
Universal Consumer Interface (UCI) Connector . . . 244
Universal Serial Bus (USB) Port.............. 239
Universal Transmitter..................... 159Upholstery Care........................ 417
USB Port.............................. 239
Vacuum/Vapor Harnesses................. 406
Vanity Mirrors........................... 81
Variance, Compass....................... 204
Vehicle Identification Number (VIN)............ 8
Vehicle Loading......................312,344
Vehicle Modifications/Alterations.............. 9
Vehicle Storage.......................270,426
Video Entertainment System (Rear Seat Video
System)............................... 253
Viscosity, Engine Oil...................... 390
Warning Flasher, Hazard.................. 366
Warning, Roll Over........................ 5
Warnings and Cautions..................... 8
Warranty Information..................... 451
Washer, Adding Fluid..................... 177
476 INDEX