fuel additives JEEP GRAND CHEROKEE 2012 Owner handbook (in English)

Telltale Lightwill flash on and off for 75 sec-
onds and then turn off, and the Electronic
Vehicle Information Center (EVIC) will display
the “SERVICE TPM SYSTEM” message. The
EVIC will also display pressure values in place
of the dashes. On the next ignition switch cycle
the SERVICE TPM SYSTEM message will no
longer be displayed as long as no system fault
exists.
General InformationTransmitter and receivers operate on a carrier
frequency of 433.92 MHz as required by EEC
regulations. These devices must be certified to
conform to specific regulations in each indi-
vidual country. Two sets of regulations are
involved: ETS (European Telecommunication
Standard) 300–220, which most countries use,
and German BZT federal regulation 225Z125,
which is based on ETC 300–220 but has addi-
tional unique requirements. Other defined re-
quirements are noted in ANNEX VI of COMMIS-
SION DIRECTIVE 95/56/EC. Operation is
subject to the following conditions:
• This device may not cause harmful interfer-
ence. •
This device must accept any interference
received, including interference that may
cause undesired operation.
FUEL REQUIREMENTS —
GASOLINE ENGINE
3.6L Engine
These engines are designed to meet all emis-
sions regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline with a minimum re-
search octane rating of 91. The use of premium
gasoline is not recommended, as it will not
provide any benefit over regular gasoline in
these engines.
5.7L EngineTheses engines are designed to meet all emis-
sions regulations and provide satisfactory fuel
economy and performance when using high-
quality unleaded gasoline having an octane
range of 91 to 95. The manufacturer recom-
mends the use of 95 octane for optimum per-
formance. The use of premium gasoline is not
recommended, as it will not provide any benefit
over regular gasoline in these engines. Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you
experience these symptoms, try another brand
of gasoline before considering service for the
vehicle.
Over 40 auto manufacturers worldwide have
issued and endorsed consistent gasoline
specifications (the Worldwide Fuel Charter,
WWFC) which define fuel properties necessary
to deliver enhanced emissions, performance,
and durability for your vehicle. The manufac-
turer recommends the use of gasoline that
meets the WWFC specifications if they are
available.
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
are recommended. Using gasolines that have
these additives may help improve fuel
economy, reduce emissions, and maintain ve-
hicle performance.
262

Materials Added to Fuel
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
are recommended. Using gasolines that have
these additives will help improve fuel economy,
reduce emissions, and maintain vehicle perfor-
mance.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these ma-
terials intended for gum and varnish removal
may contain active solvents or similar ingredi-
ents. These can harm fuel system gasket and
diaphragm materials.
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to pre-
vent carbon monoxide poisoning:(Continued)
WARNING!(Continued)
• 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 ve-
hicle is stopped in an open area with the
engine running for more than a short pe-
riod, adjust the ventilation system to force
fresh, outside air into the vehicle.
• Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle is
raised. Have any abnormal conditions re-
paired promptly. Until repaired, drive with
all side windows fully open.
• Keep the liftgate closed when driving your
vehicle to prevent carbon monoxide and
other poisonous exhaust gases from enter-
ing the vehicle.FUEL REQUIREMENTS — DIESEL
ENGINE
Use good quality diesel fuel from a reputable
supplier. For most year-round service, No. 2
diesel fuel, meeting ASTM specification D-975
Grade S15, will provide good performance. If
the vehicle is exposed to extreme cold (below
20° F or -7° C), or is required to operate at
colder-than-normal conditions for prolonged
periods, use climatized No. 2 diesel fuel or
dilute the No. 2 diesel fuel with 50% No. 1
diesel fuel. This will provide better protection
from fuel gelling or wax-plugging of the fuel
filters. This vehicle must only use premium
diesel fuel that meets the requirements of
EN 590. Biodiesel blends that meet EN 590
may also be used.
CAUTION!
The manufacturer requires that you must fuel
this vehicle with Ultra Low Sulfur Highway
Diesel fuel (15 ppm Sulfur maximum) and
prohibits the use of Low Sulfur Highway Die-
sel fuel (500 ppm Sulfur maximum) to avoid
damage to the emissions control system.
264

Adaptive Cruise Control (ACC)
(Cruise Control)..............117
Adding Fuel ................265
Additives, Fuel ...............264
Air Cleaner, Engine
(Engine Air Cleaner Filter) .........304
Air Conditioner Maintenance .......305
Air Conditioning Refrigerant .......305
Air Conditioning System ..........205
Air Conditioning, Operating Tips .....208
Air Filter ...................304
Air Pressure, Tires .............253
Air Suspension ...............236
Airbag .................. 37,43
Airbag Deployment .............44
Airbag Light ........... 42,45,56,159
Airbag Maintenance ............45
Airbag, Side ............. 39,41,43
Airbag, Window (Side Curtain) . . . 39,41,43
Alarm (Security Alarm) ..........164
Alarm System (Security Alarm) ......16
Alterations/Modifications, Vehicle ......8
Anti-Lock Brake System (ABS) ......245
Anti-Lock Warning Light ..........163
Anti-Theft System .............164
Antifreeze (Engine Coolant) ........326
Appearance Care .............315 Assist, Hill Start
..............249
Auto Down Power Windows ........25
Automatic Dimming Mirror .........67
Automatic Door Locks ...........21
Automatic Headlights ...........105
Automatic Temperature Control (ATC) . . 205
Automatic Transmission .....222,226,313
Adding Fluid ...............315
Fluid and Filter Changes ........313
Fluid Level Check .........314,315
Fluid Type ................313
Special Additives ............314
Autostick ................ 225,230
Auxiliary Electrical Outlet
(Power Outlet) ...............142
Auxiliary Power Outlet ...........142
Battery ...................304
Keyless Transmitter Replacement
(RKE) ...................19
Belts, Seat ................ 30,56
Blind Spot Monitoring ............69
Body Mechanism Lubrication .......305
Brake Assist System ............246
Brake Control System, Electronic .....245
Brake Fluid .................312 Brake System
...............311
Anti-Lock
(ABS) .............245
Fluid Check ...............312
Master Cylinder .............312
Parking ..................244
Warning Light ..............162
Brake/Transmission Interlock .......222
Break-In Recommendations, New
Vehicle ....................55
Bulb Replacement .............322
Bulbs, Light .................58
Calibration, Compass ...........179
Camera, Rear ...............136
Capacities, Fluid ..............326
Caps, Filler Fuel ....................265
Power Steering .............243
Radiator (Coolant Pressure) ......310
Car Washes ................316
Carbon Monoxide Warning .........56
Cargo Area Cover .............148
Cargo Area Features ...........146
Cargo Compartment ............146
Light ...................147
Cargo Light .................147
366

Jump Starting..............287
Engine Air Cleaner ................304
Break-In Recommendations .......55
Compartment .........298,299,300
Compartment Identification . . 298,299,300
Cooling ..................308
Exhaust Gas Caution .........29,56
Fails to Start ...............218
Flooded, Starting ............218
Fuel Requirements .........262,326
Jump Starting ..............287
Multi-Displacement ...........244
Oil .................. 302,326
Oil Change Interval ...........302
Oil Disposal ...............304
Oil Filter .................304
Oil Selection .......... 302,303,326
Oil Synthetic ...............303
Overheating ...............282
Starting ..................216
Temperature Gauge ...........164
Engine Oil Viscosity ............303
Engine Oil Viscosity Chart ........303
Enhanced Accident Response Feature . . 44
Entry System, Illuminated ..........17
Ethanol ...................263 Event Data Recorder
............46
Exhaust Gas Caution ........29,56,307
Exhaust System ............ 56,307
Exterior Finish Care ............316
Exterior Lights ................58
Filters Air Cleaner ................304
Engine Oil ................304
Finish Care .................316
Flashers ..................282
Hazard Warning .............282
Turn Signal ......... 58,160,323,324
Flipper Glass, Liftgate ...........27
Flooded Engine Starting .........218
Fluid Capacities ..............326
Fluid Leaks .................58
Fluid Level Checks Automatic Transmission ....313,314,315
Brake ...................312
Engine Oil ................302
Power Steering .............243
Fluids, Lubricants and Genuine Parts . . 327
Fog Light Service .............323
Fog Lights ............ 108,160,323
Fog

Lights, Rear ..............164 Folding Rear Seat
.............100
Forward Collision Warning . . . 129,170,180
Four Wheel Drive ........... 231,234
Operation ................231
Systems .................231
Four Wheel Drive Operation .......231
Four-Way Hazard Flasher .........282
Freeing A Stuck Vehicle ..........289
Front Axle (Differential) ..........312
Fuel .....................262
Additives .................264
Conserving ................173
Diesel ..................264
Filler Cap (Gas Cap) ........265,266
Gasoline .................262
Gauge ..................163
Light ...................170
Octane Rating ..............262
Requirements ..............326
Saver Mode ...............173
Tank Capacity ..............326
Fuel Optimizer ...............173
Fuel Saver .................173
Fuel System Caution ............265
Fuses ....................318
368