2013 JEEP GRAND CHEROKEE fuel additives

FUEL REQUIREMENTS —
GASOLINE ENGINE
3.6L EngineThese 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 pro-
vide 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 speci-
fications (the Worldwide Fuel Charter, WWFC)
which define fuel properties necessary to de-
liver enhanced emissions, performance, and
durability for your vehicle. The manufacturer
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, re-
duce emissions, and maintain vehicle perfor-
mance.Poor quality gasoline can cause problems such
as hard starting, stalling and stumble. If you
experience these problems, try another brand
of gasoline before considering service for the
vehicle.
Methanol(Methyl or Wood Alcohol) is used in a variety of
concentrations when blended with unleaded
gasoline. You may find fuels containing 3% or
more methanol along with other alcohols called
cosolvents. Problems that result from using
methanol/gasoline or E-85 Ethanol blends are
not the responsibility of the manufacturer. While
MTBE is an oxygenate made from Methanol, it
does not have the negative effects of Methanol.
CAUTION!
Do not use gasolines containing Methanol or
E-85 Ethanol. Use of these blends may result
in starting and driveability problems and may
damage critical fuel system components.
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EthanolThe manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 10% ethanol. Purchasing your fuel from a
reputable supplier may reduce the risk of ex-
ceeding this 10% limit and/or of receiving fuel
with abnormal properties. It should also be
noted that an increase in fuel consumption
should be expected when using ethanol-
blended fuels, due to the lower energy content
of ethanol. Problems that result from using
methanol/gasoline or E-85 ethanol blends are
not the responsibility of the manufacturer. While
MTBE is an oxygenate made from Methanol, it
does not have the negative effects of Methanol.
CAUTION!
Use of fuel with Ethanol content higher than
10% may result in engine malfunction, start-
ing and operating difficulties, and materials
degradation. These adverse effects could
result in permanent damage to your vehicle.
Clean Air GasolineMany gasolines are now being blended to con-
tribute to cleaner air, especially in those areas
where air pollution levels are high. These new
blends provide a cleaner burning fuel and some
are referred to as “reformulated gasoline.”
The manufacturer supports these efforts toward
cleaner air. You can help by using these blends
as they become available.
MMT In GasolineMMT 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 indi-
cated on the gasoline pump; therefore, you
should ask your gasoline retailer whether or not
his/her gasoline contains MMT.
Materials Added To FuelBesides 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, re-
duce 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.
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SAE 5W-30 Synthetic Low Ash Engine Oil is
recommended for all operating temperatures.
This engine oil improves low temperature start-
ing and vehicle fuel economy.
The engine oil filler cap also shows the recom-
mended engine oil viscosity for your engine. For
information on engine oil filler cap location, refer
to “Engine Compartment” in “Maintaining Your
Vehicle” for further information.
Synthetic Engine OilsYou may use synthetic engine oils provided the
recommended oil quality requirements are met,
and the recommended maintenance intervals
for oil and filter changes are followed.
Materials Added To Engine OilThe manufacturer strongly recommends
against the addition of any additives (other than
leak detection dyes) to the engine oil. Engine oil
is an engineered product and its performance
may be impaired by supplemental additives.
Disposing Of Used Engine Oil And
Oil Filters
Care should be taken in disposing of used
engine oil and oil filters from your vehicle. Used
oil and oil filters, indiscriminately discarded, can
present a problem to the environment. Contact
your authorized dealer, service station or gov-
ernmental agency for advice on how and where
used oil and oil filters can be safely discarded in
your area.
Engine Oil FilterThe engine oil filter should be replaced with a
new filter at every engine oil change.
Engine Oil Filter Selection
This manufacturer’s engines have a full-flow
type disposable oil filter. Use a filter of this type
for replacement. The quality of replacement
filters varies considerably. Only high quality
filters should be used to assure most efficient
service. MOPAR® engine oil filters are high
quality oil filters and are recommended.
Engine Air Cleaner FilterRefer to the “Maintenance Schedule” for the
proper maintenance intervals.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in
the case of engine backfire. Do not remove
the air induction system (air cleaner, hoses,
etc.) unless such removal is necessary for
repair or maintenance. Make sure that no
one is near the engine compartment before
starting the vehicle with the air induction
system (air cleaner, hoses, etc.) removed.
Failure to do so can result in serious per-
sonal injury.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner
filters varies considerably. Only high quality
filters should be used to assure most efficient
service. MOPAR® engine air cleaner filters are
a high quality filter and are recommended.
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Adaptive Cruise Control (ACC)(Cruise Control) ..............119
Adding Engine Coolant (Antifreeze) . . . .322
Adding Fuel ................. .276
Additives, Fuel ................274
Airbag ...................41, 46
Airbag Deployment ..............47
Airbag Light ...........45, 49, 60, 162
Airbag Maintenance ..............48
Airbag, Side ..............43, 44, 46
Airbag, Window (Side Curtain) . . . .43, 44, 46
Air Cleaner, Engine (Engine Air Cleaner Filter) ...............315
Air Conditioner Maintenance ........316
Air Conditioning Filter ............317
Air Conditioning Refrigerant .........317
Air Conditioning System ...........209
Air Pressure, Tires ..............260
Air Suspension ................241
Alarm (Security Alarm) ............167
Alarm System (Security Alarm) ........16
Alterations/Modifications, Vehicle .......8
Antifreeze (Engine Coolant) ......322, 340
Disposal .................323
Anti-Lock Brake System (ABS) .......252
Anti-Lock Warning Light ...........166
Anti-Theft Security Alarm (Theft Alarm) . . .16 Anti-Theft System
..............167
Appearance Care ...............328
Assist, Hill Start ................256
Auto Down Power Windows .........26
Automatic Dimming Mirror ..........70
Automatic Door Locks .............22
Automatic Headlights .............107
Automatic Oil Change Indicator .......177
Automatic Temperature Control (ATC) . . .209
Automatic Transmission .....226, 231, 328
Adding Fluid ...............328
Fluid and Filter Changes ........328
Fluid Change ..............328
Fluid Level Check .........326, 327
Fluid T

ype................326
Special Additives ............327
Autostick ................ .230, 235
Auxiliary Electrical Outlet (Power Outlet) . .146
Auxiliary Power Outlet ............146
Battery .................... .316
Keyless Transmitter
Replacement (RKE) ...........20
Belts, Seat ................ .33, 60
Body Mechanism Lubrication ........318
Brake Assist System .............252
Brake Control System, Electronic ......252Brake Fluid
................. .324
Brake System .................324
Anti-Lock (ABS) .............252
Fluid Check ...............324
Master Cylinder .............324
Parking ................. .250
Warning Light ..............165
Brake/Transmission Interlock ........226
Bulb Replacement ..............336
Bulbs, Light ...................61
Calibration, Compass ............184
Camera, Rear .................139
Capacities, Fluid ...............340
Caps, Filler Fuel ....................276
Power Steering .............250
Radiator (Coolant Pressure) ......323
Carbon Monoxide Warning ..........60
Cargo Area Cover ..............152
Cargo Area Features .............151
Cargo Compartment .............151
Light ...................151
Cargo Light ................. .151
Cargo Tie-Downs ...............153
Car Washes ................. .329
Cellular Phone ............. .72,

209
394

Compartment
Identification.........309, 310, 311
Cooling ................. .321
Exhaust Gas Caution .........30, 60
Fails to Start ...............222
Flooded, Starting ............222
Fuel Requirements ........273, 340
Jump Starting ..............300
Oil ..................313, 340
Oil Change Interval ........177, 313
Oil Selection ............314, 340
Oil Synthetic ...............315
Overheating ...............294
Starting ................. .220
Temperature Gauge ...........167
Engine Oil Viscosity .............314
Engine Oil Viscosity Chart ..........314
Enhanced Accident Response Feature . . .47
Entry System, Illuminated ...........18
Ethanol ....................273
Event Data Recorder .............49
Exhaust Gas Caution ...........30, 60
Exhaust System .............60, 320
Exterior Lights .................61 Filters
Air Cleaner ................315
Air Conditioning .............317
Engine Oil ................315
Engine Oil Disposal ...........315
Flashers ....................294
Hazard Warning .............294
Turn Signal ........61, 163, 337, 338
Flipper Glass, Liftgate .............28
Flooded Engine Starting ...........222
Fluid Capacities ...............340
Fluid Leaks ...................61
Fluid Level Checks Automatic Transmission .........327
Brake ...................324
Engine Oil ............... .313
Power

Steering .............250
Fluids, Lubricants and Genuine Parts . . .341
Fog Lights .............109, 163, 337
Fog Light Service ...............337
Fog Lights, Rear ...............168
Folding Rear Seat ..............100
Forward Collision Warning . . . .131, 174, 185
Four-Way Hazard Flasher ..........294Four Wheel Drive
............237, 240
Operation .................237
Systems .................237
Four Wheel Drive Operation .........237
Freeing A Stuck Vehicle ...........302
Front Axle (Differential) ...........325
Fuel ..................... .273
Adding ................. .276
Additives .................274
Conserving ................178
Diesel ...................275
Ethanol ................. .273
Filler Cap (Gas Cap) .......276, 278
Gasoline .................273
Gauge ................. .167
Light ...................174
Octane Rating ..............273
Requirements ..............340
Saver Mode ...............178
Tank Capacity ..............340
Fueling ....................276
Fuel Optimizer ................178
Fuel Saver ................. .178
Fuel System Caution .............277
Fuses .................... .331
396