2014 JEEP GRAND CHEROKEE octane

be driven for up to 20 minutes above 15 mph (24 km/h)
in order for the TPMS to receive this information.
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 TPM sensors are regulated under one of the follow-
ing licenses:
United States MRXC4W4MA4
Canada 2546A-C4W4MA4
FUEL REQUIREMENTS
3.6L Engine — If Equipped
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
engines.
5.7L Engine — If Equipped
This engine is designed to meet all emis-
sions regulations and provide satisfactory
fuel economy and performance when us-
ing high-quality unleaded gasoline having
498 STARTING AND OPERATING

an octane range of 87 to 89. The manufacturer recom-
mends the use of 89 octane for optimum performance.
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 experi-
ence 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 World-
wide Fuel Charter, WWFC) which define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasolines that meet the WWFC speci-
fications if they are available.Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasoline contain oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer supports the use of reformulated gaso-
line. Properly blended reformulated gasoline will pro-
vide excellent performance and durability of engine and
fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as Ethanol. Fuels blended with oxygenates
may be used in your vehicle.
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•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.
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.
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STARTING AND OPERATING 501

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.
• 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.
(Continued)
CAUTION! (Continued)
•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.
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features that are common between Flexible Fuel and
gasoline-only powered vehicles.
CAUTION!
Only vehicles with the E-85 fuel filler door label can
operate on E-85.
Ethanol Fuel (E-85)
E-85 is a mixture of approximately 85% fuel ethanol and
15% unleaded gasoline.
WARNING!
Ethanol vapors are extremely flammable and could
cause serious personal injury. Never have any smok-
ing materials lit in or near the vehicle when remov-
ing the fuel filler tube cap (gas cap) or filling the
tank. Do not use E-85 as a cleaning agent and never
use it near an open flame.
Fuel Requirements
If your vehicle is E-85 compatible, it will operate on
unleaded gasoline with an octane rating of 87, or E-85
fuel, or any mixture of these two fuels.
E-85 Badge
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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).
Engine Oil – 3.6L Engine 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 – 5.7L Engine 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 – 3.6L Engine We recommend you use MOPAR® Spark Plugs.
Spark Plugs – 5.7L Engine We recommend you use MOPAR® Spark Plugs.
Fuel Selection – 3.6L Engine 87 Octane
Fuel Selection – 5.7L Engine 87 Octane Acceptable - 89 Octane Recommended
7
MAINTAINING YOUR VEHICLE 627

Adding............................. .507
Additives ............................ .501
Clean Air ............................ .499
Economy Mode ....................... .403
Ethanol ............................. .499
Gasoline ............................. .498
Gauge .............................. .287
Materials Added ....................... .501
Methanol ............................ .499
Octane Rating ......................... .498
Requirements ......................... .498
Tank Capacity ......................... .625
Fuel, Flexible ........................... .503
Fueling ............................... .507
Fuses ................................. .608
Garage Door Opener (HomeLink®) ............237
Gasoline, Clean Air ....................... .499
Gasoline (Fuel) .......................... .498Gasoline, Reformulated
.....................499
Gauges Coolant Temperature .....................285
Fuel ................................ .287
Speedometer ......................... .283
Tachometer ........................... .282
Gear Ranges ............................ .405
General Information ...................... .209
Glass Cleaning .......................... .607
Gross Axle Weight Rating ...................513
Gross Vehicle Weight Rating ..................512
GVWR ................................ .510
Hazard Warning Flasher ....................538
Headlights ............................. .619
Bulb Replacement ...................... .619
Cleaning ............................ .606
On With Wipers ....................... .165
Passing ............................. .173
658 INDEX

Memory Seat........................... .157
Memory Seats and Radio ....................157
Methanol .............................. .499
Mirrors ............................... .120
Electric Powered ....................... .128
Electric Remote ........................ .128
Exterior Folding ....................... .127
Heated .............................. .129
Outside ............................. .127
Rearview ............................ .120
Vanity .............................. .130
Modifications/Alterations, Vehicle ...............9
Monitor, Tire Pressure System ................490
Mopar Parts ............................ .573
MTBE/ETBE ........................... .499
Multi-Function Control Lever .................163
New Vehicle Break-In Period .................106Occupant Restraints
........................48
Occupant Restraints (Sedan) ..................70
Octane Rating, Gasoline (Fuel) ................498
Odometer .............................. .289
Trip ................................ .289
Off-Pavement Driving (Off-Road) ..............431
Off-Road Driving (Off-Pavement) ..............431
Oil, Engine ............................. .574
Capacity ............................ .625
Change Interval ....................... .575
Dipstick ............................. .574
Disposal ............................. .578
Filter ............................... .578
Filter Disposal ........................ .578
Identification Logo ..................... .576
Materials Added to ..................... .578
Recommendation ...................... .576
Synthetic ............................ .577
Viscosity ............................ .576
662 INDEX