2011 JEEP GRAND CHEROKEE fuel additives

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 emissions 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
the 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 those allowed in the
United States. MMT is prohibited in Federal and Califor-
nia 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 and they 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 perfor-
mance and damage the emissions control system.(Continued)
5
STARTING AND OPERATING 427

CAUTION! (Continued)
•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 authorized 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 concentra-
tions 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 the emissions con-
trol system 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.
(Continued)
428 STARTING AND OPERATING

When you do switch fuel types it is recommended that:
•you do not switch when the fuel gauge indicates less
than 1/4 full
•you do not add less than 5 gallons (19 Liters) when
refueling
•you operate the vehicle immediately after refueling for
a period of at least 5 minutes
Observing these precautions will avoid possible hard
starting and/or significant deterioration in driveability
during warm up.
NOTE:
•When the ambient temperature is above 90° F (32° C),
you may experience hard starting and rough idle
following start up even if the above recommendations
are followed.
•Some additives used in regular gasoline are not fully
compatible with E-85 and may form deposits in your
engine. To eliminate driveability issues that may be
caused by these deposits, a supplemental gasoline
additive, such as MOPAR Injector Cleanup or
Techron may be used.
Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) and Gasoline Vehicles
FFV vehicles operated on E-85 require specially formu-
lated engine oils. These special requirements are included
in MOPAR engine oils, and in equivalent oils meeting
Chrysler Specification MS-6395. The manufacturer re-
quires engine oils that are API Certified and meet the
requirements of Material Standard MS-6395. MS-6395
contains additional requirements, developed during ex-
tensive fleet testing, to provide additional protection to
Chrysler Group LLC engines. Use MOPAR or an
equivalent oil meeting the specification MS-6395.5
STARTING AND OPERATING 431

Adaptive Cruise Control (ACC) (Cruise Control) . . 167
Adding Fuel........................... 433
Additives, Fuel ......................... 427
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 492
Air Conditioner Maintenance ............... 495
Air Conditioning ........................ 324
Air Conditioning Controls ................. 324
Air Conditioning Refrigerant ............... 496
Air Conditioning System ................324,328
Air Conditioning, Operating Tips ............ 334
Air Filter .............................. 492
Air Pressure, Tires ....................... 404
Air Suspension ......................... 365
Airbag .............................. 68,77
Airbag Deployment ....................... 78
Airbag Light ................... 75,76,81,98,248
Airbag Maintenance ....................... 80
Airbag, Side ........................ 71,74,77
Airbag, Window (Side Curtain) ...........72,74,77Alarm (Security Alarm)
.................21,256
Alarm, Panic ............................ 26
Alterations/Modifications, Vehicle ............. 9
Antenna, Satellite Radio ................... 309
Anti-Lock Brake System (ABS) .............. 381
Anti-Lock Warning Light .................. 255
Anti-Theft System ....................... 256
Antifreeze (Engine Coolant) ................ 533
Appearance Care ........................ 515
Arming Theft System (Security Alarm) ......... 21
Assist, Hill Start ........................ 387
Auto Down Power Windows ................ 42
Automatic Dimming Mirror ................ 109
Automatic Door Locks ..................... 34
Automatic Headlights .................... 147
Automatic Temperature Control (ATC) ......... 328
Automatic Transmission ................350,511
Adding Fluid ......................... 514
Fluid and Filter Changes ................. 511
564 INDEX

Fluid Level Check................... 512,513
Fluid Type ........................... 511
Special Additives ...................... 512
Torque Converter ...................... 356
Autostick ............................. 352
Auxiliary Electrical Outlet (Power Outlet) ...... 221
Auxiliary Power Outlet ................... 221
B-Pillar Location ........................ 399
Battery ............................... 493
Keyless Transmitter Replacement (RKE) ....... 26
Belts, Seat ............................ 52,98
Blind Spot Monitoring .................... 112
Body Mechanism Lubrication ............... 496
Brake Assist System ...................... 382
Brake Control System, Electronic ............. 381
Brake Fluid ............................ 508
Brake System ........................... 507
Anti-Lock (ABS) ....................... 381 Fluid Check
.......................... 508
Master Cylinder ....................... 508
Parking ............................. 379
Warning Light ........................ 253
Brake/Transmission Interlock ............... 350
Break-In Recommendations, New Vehicle ........ 95
Bulb Replacement ..................... 526,527
Bulbs, Light ............................ 100
Calibration, Compass ..................... 278
Camera, Rear ........................... 204
Capacities, Fluid ........................ 533
Caps, Filler Fuel ............................... 433
Power Steering ........................ 378
Radiator (Coolant Pressure) ............... 505
Car Washes ............................ 515
Carbon Monoxide Warning ...............97,428
Cargo (Vehicle Loading) ................... 436
10
INDEX 565

Power Steering........................ 378
Fluids, Lubricants and Genuine Parts .......... 534
Fog Light Service ........................ 528
Fog Lights .......................... 250,528
Folding Rear Seat ........................ 137
Four Wheel Drive ..................... 357,363
Operation ........................... 357
Systems ............................. 357
Four Wheel Drive Operation ................ 357
Four-Way Hazard Flasher .................. 462
Front Axle (Differential) ................... 509
Fuel ................................. 424
Additives ............................ 427
Clean Air ............................ 425
Conserving .......................... 273
Ethanol ............................. 425
Filler Cap (Gas Cap) ................. 433,436
Gasoline ............................ 424
Gauge .............................. 256 Light
............................... 268
Materials Added ....................... 427
Methanol ............................ 425
Requirements ......................... 533
Saver Mode .......................... 273
Tank Capacity ........................ 533
Fuel Optimizer ......................... 273
Fuel Saver ............................. 273
Fuel System Caution ..................... 434
Fuel, Flexible ........................... 429
Fuses ................................ 520
Garage Door Opener (HomeLink®) ........... 208
Gas Cap (Fuel Filler Cap) ............433,436,485
Gasoline (Fuel) ......................... 424
Conserving .......................... 273
Gasoline, Clean Air ...................... 425
Gasoline, Reformulated ................... 425
570 INDEX