(2) This device must accept any interference received,
including interference that may cause undesired opera-
tion.
NOTE:Changes or modifications not expressly approved
by the party responsible for compliance could void the
user ’s authority to operate the equipment.
FUEL REQUIREMENTS
6.4L Engine
This engines is designed to meet all emis-
sions regulations and provide satisfactory
fuel economy and performance when us-
ing high quality unleaded gasoline having
a posted octane number range of 87 to 89
as specified by the (R+M)/2 method. The use of 89 octane
“Plus” gasoline is recommended for optimum perfor-
mance and fuel economy. While operating on gasoline with an octane number of
87, hearing a light knocking sound from the engine is not
a cause for concern. However, if the engine is heard
making a heavy knocking sound, see your dealer imme-
diately. Use of gasoline with an octane number lower
than 87 can cause engine failure and may void or not be
covered by the New Vehicle Limited Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience these
symptoms, try another brand of gasoline before consid-
ering service for the vehicle.Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline”.
Reformulated gasoline contains oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
494 STARTING AND OPERATING
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
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. Designated TOP TIER Detergent Gasoline con-
tains a higher level of detergents to further aide in
minimizing engine and fuel system deposits. When avail-
able the usage of Top Tier Detergent gasoline is recom-
mended. Visit www.toptiergas.com for a list of TOP TIER
Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning agents should
be avoided. Many of these materials intended for gum
and varnish removal may contain active solvents or
similar ingredients. These can harm fuel system gasket
and diaphragm materials.
496 STARTING AND OPERATING
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gasoline is prohibited by Federal
law. Using leaded gasoline can impair engine per-
formance and damage the emissions control sys-
tem.
• 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 and may void or not be covered
under the New Vehicle Limited Warranty.
NOTE: Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
5
STARTING AND OPERATING 497
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 – 6.4L Engine For best performance and maximum protection under all types
of operating conditions, the manufacturer only recommends full
synthetic engine oils that meet the American Petroleum Institute
(API) categories of SN. The manufacturer recommends the use
of Pennzoil Ultra 0W-40 or equivalent MOPAR engine oil meet-
ing the requirements of FCA Material Standard MS-12633 for
use in all operating temperatures.
Engine Oil Filter – 6.4L Engine We recommend you use MOPAR Engine Oil Filters.
Spark Plugs – 6.4L Engine We recommend you use MOPAR Spark Plugs.
Fuel Selection – 6.4L Engine 89 Octane Recommended - 87 Octane Acceptable, 0-15% Etha-
nol.
622 MAINTAINING YOUR VEHICLE
Fluid Level ChecksAutomatic Transmission ..................594
Brake ............................... .590
Power Steering ........................ .434
Fluids, Lubricants And Genuine Parts ...........622
Fog Lights ....................... .163, 257, 617
Four-Way Hazard Flasher ...................532
Four Wheel Drive ........................ .419
Freeing A Stuck Vehicle .....................549
Front Axle (Differential) .....................591
Fuel .................................. .494
Adding ............................. .498
Additives ............................ .496
Clean Air ............................ .494
Ethanol ............................. .495
Filler Cap (Gas Cap) .....................499
Filter ............................... .622
Gasoline ............................. .494
Light ............................... .254Materials Added
....................... .496
Methanol ............................ .495
Octane Rating ......................... .494
Requirements ......................... .494
Tank Capacity ......................... .621
Fuses ................................. .603
Gas Cap (Fuel Filler Cap) ................499, 560
Gasoline, Clean Air ....................... .494
Gasoline (Fuel) .......................... .494
Gasoline, Reformulated .....................494
Gear Ranges ............................ .405
Gear Select Lever Override ..................551
Glass Cleaning .......................... .602
Grocery Bag Retainer ...................... .222
Gross Axle Weight Rating ...................503
Gross Vehicle Weight Rating ..................502
Guide,
Body Builders ........................6
652 INDEX
Lug Nuts....................... .533, 541, 543
Maintenance Free Battery ....................572
Maintenance Procedures ....................563
Maintenance Schedule ..................... .626
Malfunction Indicator Light (Check Engine) . . .248, 561
Manual, Service ......................... .640
Manual Transmission Fluid Level Check ...................... .593
Memory Seat ........................... .151
Methanol .............................. .495
Mirrors ............................... .124
Electric Powered ....................... .134
Heated .............................. .136
Memory ............................. .151
Outside ............................. .132
Rearview ......................... .124, 132
Trailer Towing ........................ .137
Modifications/Alterations, Vehicle ...............7Monitor, Tire Pressure System
................484
MOPAR Parts ........................ .562, 639
MTBE/ETBE ........................... .495
Multi-Function Control Lever .................168
Navigation System (Uconnect GPS) .............201
New Vehicle Break-In Period ..............112,113
Occupant Restraints ........................49
Octane Rating, Gasoline (Fuel) ................494
Oil, Engine ......................... .564, 622
Capacity ............................ .621
Change Interval ....................... .565
Dipstick ............................. .564
Disposal ............................. .566
Filter ............................ .566, 622
Filter Disposal ........................ .566
Identification Logo ..................... .565
Pressure Warning Light ...................243
656 INDEX