oil viscosity JEEP GRAND CHEROKEE 2008 WK / 3.G SRT Owners Manual

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
Exhaust Gas
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO) which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing (CO)
follow the safety tips below.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Engine Oil Viscosity
SAE 0W-40 engine oil is preferred for use within the
operating temperatures shown in the engine oil viscosity
chart. SAE 5W-40 engine oil is also allowed. The proper
SAE viscosity grade of engine oil should be selected
based on the following recommendation and be within
the operating temperature shown in the engine oil vis-
cosity chart.
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.
314 MAINTAINING YOUR VEHICLE

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology)
Engine Oil (6.1L Engine) For best performance and maximum protection under all types of operating
conditions, the manufacturer only recommends full synthetic engine oils that
meet the American Petroleum Institute (API) categories of SM or SM/CF, and
meet the requirements of DaimlerChrysler Material Standard MS-10725. The
manufacturer recommends the use of a full synthetic engine oil, such as Mo-
bil 1 SAE 0W-40 or equivalent. For additional information, refer to the ªEn-
gine Oil Selectionº and ªEngine Oil Viscosity (SAE Grade)º in the ªMainte-
nance Proceduresº section of this manual.
Oil Filter (6.1L Engine) MopartOil Filter (P/N 05281090) or equivalent.
Spark Plugs PLZTR5AÐ13 (Gap 0.050º)
Fuel Selection (6.1L Engine) Premium Unleaded 91 Octane Only or higher.
MAINTAINING YOUR VEHICLE 353
7

Air Cleaner Filter...................... 316
Break-In Recommendations................ 66
Checking Oil Level..................... 311
Compartment......................... 306
Compartment Identification............... 306
Coolant (Antifreeze).................... 324
Cooling............................. 324
Exhaust Gas Caution..................66,281
Fails to Start.......................... 244
Fuel Requirements..................278,352
Oil .............................. 311,352
Oil Change Interval.................... 312
Oil Selection.......................313,352
Overheating.......................... 299
Starting............................. 242
Temperature Gauge..................... 178
Engine Oil Viscosity...................... 314
Engine Oil Viscosity Chart................. 314
Enhanced Accident Response Feature.......... 52Entry System, Illuminated.................. 19
Ethanol............................... 279
Event Data Recorder...................... 54
Exhaust Gas Caution................66,281,323
Exhaust System......................... 323
Exterior Finish Care...................... 334
Fabric Care............................ 336
Filters
Air Cleaner.......................... 316
Engine Fuel.......................... 317
Engine Oil........................... 315
Engine Oil Disposal.................... 315
Finish Care............................ 334
Flashers.............................. 298
Hazard Warning....................... 298
Turn Signal.....................174,349,350
Flipper Glass, Liftgate..................... 33
Flooded Engine Starting................... 244
390 INDEX

MP3 Player............................ 212
MTBE/ETBE........................... 279
Multi-Function Control Lever............... 119
Navigation Radio........................ 215
Navigation System....................... 215
New Vehicle Break-In Period................ 66
Occupant Restraints....................... 34
Octane Rating, Gasoline (Fuel).............. 278
Odometer..........................179,180
Trip ................................ 179
Oil, Engine............................ 311
Capacity............................ 352
Change Interval....................... 312
Checking............................ 311
Disposal............................ 315
Filter............................... 315
Filter Disposal........................ 315Materials Added to..................... 315
Pressure Warning Light.................. 176
Recommendation...................313,352
Viscosity............................ 352
Onboard Diagnostic System..............307,308
Opener, Garage Door (HomeLinkt) ........... 148
Outside Rearview Mirrors.................. 75
Overhead Console....................... 147
Overheating, Engine...................179,299
Owner's Manual (Operator Manual).......... 380
Paint Care............................. 333
Paint Damage.......................... 333
Panic Alarm............................ 22
Park Sense System, Rear................... 142
Parking Brake.......................... 253
Passing Light........................... 124
Pedals, Adjustable....................... 130
Personal Settings........................ 190
396 INDEX

Automatic........................247,333
Range Indicator....................... 181
Shifting............................. 245
Transmitter Battery Service (Remote Keyless
Entry)................................. 23
Transmitter, Garage Door Opener (HomeLinkt) . . 148
Transmitter Programming (Remote Keyless
Entry)................................. 19
Transmitter, Remote Keyless Entry (RKE)........ 19
Tread Wear Indicators.................... 272
Turn Signals...................124,174,349,350
UCI Connector......................... 217
UConnectŸ (Hands-Free Phone).............. 77
Underhood Fuses.....................341,344
Uniform Tire Quality Grades................ 382
Universal Consumer Interface (UCI) Connector . . . 217
Universal Serial Bus (USB) Port.............. 212
Universal Transmitter..................... 148Unleaded Gasoline....................... 278
Upholstery Care........................ 336
USB Port.............................. 212
Vanity Mirrors........................... 77
Variance, Compass....................... 189
Vehicle Identification Number (VIN)............ 7
Vehicle Loading......................... 264
Vehicle Modifications/Alterations.............. 8
Vehicle Storage.......................237,345
Video Entertainment System (Rear Seat Video
System)............................... 225
Viscosity, Engine Oil...................... 314
Warning Flasher, Hazard.................. 298
Warning, Roll Over........................ 4
Warnings and Cautions..................... 7
Warranty Information..................... 379
Washer, Adding Fluid..................... 168
402 INDEX