2006 JEEP GRAND CHEROKEE fuel additives

MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase the octane num-
ber. Gasolines blended with MMT offer no performance
advantage beyond gasolines of the same octane number
without MMT. Gasolines blended with MMT have shown
to reduce spark plug life and reduce emission system
performance in some vehicles. The manufacturer recom-
mends using gasolines without MMT. Since the MMT
content of gasoline may not be indicated on the pump,
you should ask your gasoline retailer whether or not
his/her gasoline contains MMT.
It is even more important to look for gasolines without
MMT in Canada, because MMT can be used at levels
higher than those allowed in the United States.
MMT is prohibited in Federal and California reformu-
lated gasolines.
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 are not needed under
normal conditions and would result in additional cost.
Therefore you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
or damage the emission control system.
270 STARTING AND OPERATING

•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 are 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 are 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.
STARTING AND OPERATING 271
5

ABS (Anti-Lock Brake System)............177,243
Adding Engine Coolant (Antifreeze).......... 316
Adding Washer Fluid..................... 169
Additives, Fuel......................... 270
Adjustable Pedals....................... 144
Air Conditioner Maintenance............... 309
Air Conditioning Refrigerant............... 310
Air Pressure, Tires....................... 258
Airbag................................ 42
Airbag Deployment....................... 55
Airbag Light.......................57,71,177
Airbag Maintenance....................... 56
Alarm (Security Alarm).................25,178
Alarm System (Security Alarm)............... 25
Alignment and Balance................... 264
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 218
Antifreeze (Engine Coolant)..............315,341
Disposal............................ 317Anti-Lock Brake System (ABS)............131,243
Anti-Lock Warning Light.................. 177
Anti-Theft System.....................25,178
Appearance Care........................ 324
Auto Down Power Windows................ 30
Automatic Dimming Mirror................. 78
Automatic Door Locks..................... 19
Automatic Headlights.................... 121
Automatic Temperature Control (ATC)......... 222
Automatic Transmission.............236,323,324
Adding Fluid......................... 324
Fluid and Filter Changes................. 324
Fluid Change......................... 324
Fluid Level Check...................... 323
Autostick............................. 239
Auxiliary Electrical Outlet (Power Outlet)...... 160
Auxiliary Power Outlet................... 160
Battery............................... 307
374 INDEX

Temperature Gauge..................... 180
Engine Oil Viscosity...................... 303
Engine Oil Viscosity Chart................. 303
Enhanced Accident Response Feature.......... 56
Entry System, Illuminated.................. 16
Event Data Recorder...................... 57
Exhaust Gas Caution................70,271,313
Exhaust System......................... 313
Exterior Finish Care...................... 325
Filters
Air Cleaner.......................... 305
Engine Fuel.......................... 305
Engine Oil........................... 304
Engine Oil Disposal.................... 304
Finish Care............................ 325
Flashers.............................. 288
Hazard Warning....................... 288
Turn Signal.....................176,337,339Flipper Glass, Liftgate..................... 27
Flooded Engine Starting................... 235
Fluid Capacities......................... 341
Fluid Leaks............................. 72
Fluid Level Checks
Brake............................... 321
Cooling System....................... 314
Engine Oil........................... 301
Power Steering........................ 310
Fluids, Lubricants and Genuine Parts.......... 342
Fog Light Service........................ 338
Fog Lights.......................124,183,338
Folding Rear Seat........................ 109
Four-Way Hazard Flasher.................. 288
Freeing A Stuck Vehicle................... 238
Fuel................................. 268
Additives............................ 270
Clean Air............................ 269
Filler Cap (Gas Cap).................... 272
378 INDEX