2006 JEEP LIBERTY octane

2.8L Turbo Diesel Engines
Rotate the tires every 6,000 miles (10 000 km).
NOTE: The Premium Tire Pressure Monitor System will
automatically locate the pressure values displayed in the
correct vehicle position following a tire rotation.
The suggested rotation method is the “forward-cross”
shown in the following diagram.FUEL REQUIREMENTS (GASOLINE ENGINES)
Your engine is designed to meet all emis-
sions regulations and provide excellent
fuel economy and performance when us-
ing high quality unleaded gasoline having
an octane rating of 87. The use of premium
gasoline is not recommended. The use of
premium gasoline will provide no benefit over high
quality regular gasoline, and in some circumstances may
result in poorer performance.
Mid-grade gasoline (89 octane) will enhance engine per-
formance during the following conditions (3.7L Only):
•Hot weather
•Towing
•Hard accelerations
•Hilly terrain
276 STARTING AND OPERATING

CAUTION!
DO NOT use gasoline containing METHANOL.
Gasoline containing methanol may damage critical
fuel system components.
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 whether
or not his/her gasoline contains MMT. It is even more important to look for gasoline without
MMT in Canada because MMT can be used at levels
higher than allowed in the United States. MMT is pro-
hibited in Federal and California reformulated gasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
278 STARTING AND OPERATING

•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
damage the emission control system.
•An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
•The use of fuel additives which are now being sold as
octane enhancers is not recommended. Most of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas which can kill.
Never run the engine in a closed area, such as a
garage, and never sit in a parked vehicle with the
engine running for an extended period. If the vehicle is
stopped in an open area with the engine running for
more than a short period, adjust the ventilation system
to force fresh, outside air into the vehicle.
•Guard against carbon monoxide with proper mainte-
nance. Have the exhaust system inspected every time
STARTING AND OPERATING 279
5

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant Mopar Antifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Ad-
ditive Technology)
Engine Oil (3.7L Engines) Use API Certified SAE 5W-30 Engine Oil, meeting the requirements of DaimlerChrysler Material Standard MS-6395.
Engine Oil (2.8L Diesel En-
gines) Use SAE 0W-40 Synthetic Engine Oil that meets API Categories SM/CF, and the re-
quirements of DaimlerChrysler Material Standard MS-10725. If SAE 0W-40 is not avail-
able, SAE 5W-40 Synthetic Engine Oil is acceptable.
Oil Filter (3.7L Engine) Mopar Oil Filter (P/N 4781452AA or 4781452BB)
Oil Filter (2.8L Diesel Engine) Mopar Oil Filter (P/N 5003558AA)
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine compartment.
Fuel Selection (Gasoline En-
gines Only) 87 Octane (89 Octane should be used for trailer towing purposes - 3.7L Only).
Fuel Selection (Diesel Engines
Only) Use good quality diesel fuel from a reputable supplier. For most year-round service,
No. 2 diesel fuel meeting ASTM specification D-975 will provide good performance.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting
ASTM specification D-975.
MAINTAINING YOUR VEHICLE 363
7

Octane Rating........................ 276
Requirements ................... 276,280,362
Tank Capacity ........................ 362
Fuel System Caution ................... 278,282
Fuses ................................ 349
Garage Door Opener (HomeLink ) ........... 145
Gas Cap (Fuel Filler Cap) ...............281,316
Gasoline (Fuel) ......................... 276
Gasoline, Reformulated ................... 277
Gasoline/Oxygenate Blends ................ 277
Gauges Coolant Temperature .................... 176
Fuel ................................ 179
Odometer ........................... 176
Speedometer ......................... 173
Tachometer .......................... 173
Gear Ranges ........................ 226,228
General Information ...................... 274 Glass Cleaning
.......................... 348
Glow Plug Light ........................ 181
Gross Axle Weight Rating .................. 283
Gross Vehicle Weight Rating ................ 283
Hands-Free Phone (UConnect™) .............. 83
Hazard Warning Flasher ................... 300
Head Restraints ......................... 108
Head Rests ............................ 108
Headlights ............................ 116
Bulb Replacement ...................... 356
High Beam ........................... 173
Lights On Reminder .................... 118
Passing ............................. 117
Replacing ............................ 356
Switch .............................. 116
Heated Mirrors .......................... 82
Heated Seats ........................... 110
Heater, Engine Block ..................... 223
408 INDEX

Diesel.............................. 384
Light Duty Schedule “A” ..............379,391
Light Duty Schedule “B” ..............369,386
Schedule “A” ...................... 379,391
Schedule “B” ...................... 369,386
Maintenance, Sunroof ..................... 153
Malfunction Indicator Light (Check Engine) . . 174,317
Manual, Service ......................... 398
Manual Transmission .................. 224,342
Fluid Level Check ...................... 342
Lubricant Selection ..................... 342
Shift Speeds .......................... 226
Map/Reading Lights ..................... 136
Master Cylinder (Brakes) .................. 338
Mini-Trip Computer ...................... 141
Mirrors ................................ 79
Automatic Dimming ..................... 80
Electric Remote ........................ 81
Heated .............................. 82 Outside
.............................. 80
Rearview ............................. 79
Vanity ............................... 82
Modifications/Alterations, Vehicle ............. 8
Monitor, Tire Pressure System ............... 268
Mopar Parts ......................... 318,397
Multi-Function Control Lever ............... 116
Navigation System ....................... 199
New Vehicle Break-In Period ................ 71
Occupant Classification System (OCS) .......... 54
Occupant Restraints ....................... 34
Octane Rating, Gasoline (Fuel) .............. 276
Odometer ............................. 176
Trip ................................ 176
Off-Pavement Driving (Off-Road) ..........249,344
Off-Road Driving (Off-Pavement) ..........249,344
Oil, Engine ............................ 319
412 INDEX