octane JEEP WRANGLER 2014 JK / 3.G Owners Manual

General Information
This device complies with part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
• This device must accept any interference received,
including interference that may cause undesired op-
eration.
The tire pressure sensors are covered under one of the
following licenses:
United States MRXC4W4MA4
Canada 2546A-C4W4MA4
FUEL REQUIREMENTS
3.6L Engine
This engine is designed to meet all emis-
sions regulations and provide excellent
fuel economy and performance when us-
ing high-quality unleaded “regular” gaso-
line having an octane rating of 87. The use
of premium gasoline is not recommended, as it will not
provide any benefit over regular gasoline in these en-
gines.
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 experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
5
STARTING AND OPERATING 521

E-85 Usage In Non-Flex Fuel Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible with gaso-
line containing 10% ethanol (E10). Gasoline with higher
ethanol content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•Operate in a lean mode.
• OBD II “Malfunction Indicator Light” on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion.
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
• Drain the fuel tank (see your authorized dealer). •
Change the engine oil and oil filter.
• Disconnect and reconnect the battery to reset the
engine controller memory.
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (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. MMT is
prohibited in Federal and California reformulated gasoline.
5
STARTING AND OPERATING 523

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)
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 ser-
vice. 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 concentrations
of methanol. Fuel system damage or vehicle perfor-
mance problems resulting from the use of such
fuels or additives is not the responsibility of the
manufacturer.
NOTE: Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
524 STARTING AND OPERATING

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use MOPAR® Antifreeze/Coolant 10 Year/
150,000 Mile Formula OAT (Organic Additive Technology) or equivalent
meeting the requirements of Chrysler Material Standard MS-12106.
Engine Oil We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of Chrysler Material Standard MS-6395 such as MOPAR®,
Pennzoil®, and Shell Helix®. Refer to your engine oil filler cap for correct
SAE grade.
Engine Oil Filter We recommend you use MOPAR® Engine Oil Filter or equivalent.
Spark Plugs We recommend you use MOPAR® Spark Plugs (Gap 0.043 in [1.1 mm])
Fuel Selection 87 Octane
7
MAINTAINING YOUR VEHICLE 633

Four Wheel Drive Operation.................439
Freeing A Stuck Vehicle .....................570
Front Axle (Differential) .....................611
Fuel .................................. .521
Adding ............................. .526
Additives ............................ .524
Clean Air ............................ .522
Ethanol ............................. .522
Filler Cap (Gas Cap) .....................526
Gasoline ............................. .521
Gauge .............................. .308
Materials Added ....................... .524
Methanol ............................ .522
Octane Rating ......................... .521
Requirements ......................... .521
Tank Capacity ......................... .632
Fueling ............................... .526
Fuses ................................. .619Gas Cap (Fuel Filler Cap)
...................526
Gasoline, Clean Air ....................... .522
Gasoline (Fuel) .......................... .521
Gasoline, Reformulated .....................522
Gauges Coolant Temperature .....................313
Fuel ................................ .308
Odometer ............................ .316
Speedometer ......................... .308
Tachometer ........................... .312
Gear Ranges ............................ .424
Gear Select Lever Override ..................572
General Information ...................... .149
Glass Cleaning .......................... .615
Gross Axle Weight Rating ...................531
Gross Vehicle Weight Rating ..................530
GVWR ................................ .528
Hands-Fr

ee Phone (Uconnect®) ...............118
662 INDEX

Door.................................40
Power Door ............................42
Steering Wheel ..........................17
Lubrication, Body ........................ .593
Lug Nuts .............................. .557
Maintenance Free Battery ....................588
Maintenance Procedures ....................583
Maintenance Schedule ..................... .636
Malfunction Indicator Light (Check Engine) .......319
Manual, Service ......................... .652
Manual Transmission ..................... .422
Fluid Level Check ...................... .609
Lubricant Selection ..................... .609
Shift Speeds .......................... .424
Master Cylinder (Brakes) ....................604
Methanol .............................. .522
Mini-Trip Computer ...................... .322
Mirrors ................................115 Automatic Dimming
.....................116
Electric Powered ........................117
Electric Remote .........................117
Heated ...............................118
Outside ..............................115
Rearview .............................115
Vanity ...............................118
Modifications/Alterations, Vehicle ...............9
Modular Hard Top ....................... .206
Monitor, Tire Pressure System ................509
MOPAR® Parts .......................... .582
MTBE/ETBE ........................... .522
New Vehicle Break-In Period .................102
Occupant Restraints ........................50
Octane Rating, Gasoline (Fuel) ................521
Odometer .............................. .316
Trip ................................ .314
666 INDEX