2008 JEEP LIBERTY oil viscosity

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.A new engine may consume some oil during its first few
thousand miles (kilometers) of operation. This should be
considered as a normal part of the break-in and not
interpreted as an indication of difficulty.
SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO
AREA.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 79
2

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 ªMaintenance Scheduleº 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 manufacturer recom-
mends 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
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 ªEngine Com-
partmentº illustration in this section.
404 MAINTAINING YOUR VEHICLE

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.
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.
Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
Engine Oil Filter Selection
All of this manufacturer's engines have a full-flow type
disposable oil filter. Use a filter of this type for replace-
ment. The quality of replacement filters varies consider-
ably. Only high quality filters should be used to assure
most efficient service. MopartEngine Oil Filters are high
quality oil filters and are recommended.
MAINTAINING YOUR VEHICLE 405
7

Overheating.......................... 384
Starting............................. 277
Temperature Gauge..................... 198
Engine Oil Viscosity...................... 404
Engine Oil Viscosity Chart................. 404
Enhanced Accident Response Feature.......... 65
Entry System, Illuminated.................. 20
Ethanol............................... 356
Event Data Recorder...................... 67
Exhaust Gas Caution..............80,81,358,415
Exhaust System.......................80,415
Exterior Finish Care...................... 429
Exterior Folding Mirrors................... 90
Exterior Lights.......................... 82
Fabric Care.........................431,432
Filler Location Fuel...................... 359
Filters
Air Cleaner.......................... 406Air Conditioning....................271,412
Engine Fuel.......................... 407
Engine Oil........................405,448
Engine Oil Disposal.................... 405
Finish Care............................ 429
Flashers
Turn Signal................82,136,194,444,445
Flash-To-Pass........................... 137
Flooded Engine Starting................... 278
Floor Console.......................... 173
Fluid, Brake........................... 449
Fluid Capacities......................... 447
Fluid Leaks............................. 82
Fluid Level Checks....................426,428
Automatic Transmission................. 425
Brake............................... 423
Cooling System....................... 416
Engine Oil........................... 403
Manual Transmission................... 426
476 INDEX

Electric Remote........................ 90
Exterior Folding........................ 90
Heated.............................. 91
Outside.............................. 89
Rearview............................. 88
Vanity............................... 91
Modifications/Alterations, Vehicle............. 8
Monitor, Tire Pressure System............... 346
Mopar Parts.........................402,463
MP3 Player............................ 237
MTBE/ETBE........................... 356
Multi-Function Control Lever............... 133
Navigation Radio........................ 237
Navigation System....................... 237
New Vehicle Break-In Period................ 79
Occupant Restraints....................... 41
Octane Rating, Gasoline (Fuel)............355,448Odometer
Trip ................................ 199
Off-Pavement Driving (Off-Road)............ 304
Off-Road Driving (Off-Pavement)............ 304
Oil Change Indicator..................201,209
Oil Change Indicator, Reset..............201,209
Oil, Engine.........................403,448
Capacity............................ 447
Change Interval..................201,209,404
Checking............................ 403
Dipstick............................. 403
Disposal............................ 405
Filter............................405,448
Filter Disposal........................ 405
Identification Logo..................... 404
Materials Added to..................... 405
Recommendation...................404,447
Synthetic............................ 405
Viscosity..........................404,447
INDEX 483
10

Transmitter Programming (Remote Keyless
Entry)................................. 20
Transmitter, Remote Keyless Entry (RKE)........ 20
Tread Wear Indicators.................... 341
Trip Odometer.......................... 200
Trip Odometer Reset Button................ 199
Turn Signals................133,136,194,444,445
UConnectŸ (Hands-Free Phone)...........92,237
Uniform Tire Quality Grades................ 466
Universal Serial Bus (USB) Port.............. 237
Universal Transmitter..................... 155
Unleaded Gasoline....................... 355
Untwisting Procedure, Seat Belt.............. 47
Upholstery Care........................ 431
USB Port.............................. 237
Vacuum/Vapor Harnesses................. 421
Vanity Mirrors........................... 91Variance, Compass....................204,213
Vehicle Certification Label................. 361
Vehicle Identification Number (VIN)............ 7
Vehicle Loading......................334,361
Vehicle Modifications/Alterations.............. 8
Vehicle Storage......................... 270
Vehicle Theft Alarm (Security Alarm).......... 18
Viscosity, Engine Oil...................... 404
Warning Lights (Instrument Cluster
Description)........................... 190
Warning, Roll Over........................ 4
Warnings and Cautions..................... 7
Warranty Information..................... 463
Washer, Adding Fluid..................145,181
Washers, Windshield................140,145,414
Water
Driving Through...................... 304
Waxing and Polishing..................... 429
INDEX 491
10