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. Gaso-
line 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.
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 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 service.
Contact an 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 metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer 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.
9
TECHNICAL SPECIFICATIONS 395
FLUIDS AND LUBRICANTS
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 & 5.7L Engine We recommend you use API Certified SAE 5W-20 Engine Oil,
meeting the requirements of FCA Material Standard MS-6395
such as Mopar, Pennzoil, and Shell Helix. Refer to your en-
gine oil filler cap for correct SAE grade.
Engine Oil – 6.4L Engine For best performance and maximum protection under all
types of operating conditions, the manufacturer only recom-
mends full synthetic engine oils.
The manufacturer recommends the use of Pennzoil Ultra
Platinum 0W-40 or equivalent Mopar engine oil meeting the
requirements of FCA Material Standard MS-12633 for use in
all operating temperatures.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 3.6 Engine 87 Octane, 0-15% Ethanol.
Fuel Selection – 5.7 Engine With Automatic Trans-
mission
89 Octane recommended – 87 Octane acceptable, 0-15% Ethanol.
Fuel Selection – 6.4L Engine & 5.7 Engine With
Manual Transmission 91 Octane or higher, 0-15% Ethanol.
398 TECHNICAL SPECIFICATIONS
Seats............................ .39, 41, 42, 44
Adjustment .......................... .39, 41
Head Restraints ....................... .46, 47
Heated .................................42
Height Adjustment ........................41
Power .................................41
Rear Folding ......................... .39, 45
Seatback Release ...................... .39, 45
Tilting ........................... .39, 41, 44
Vented .................................43
Ventilated ...............................43
Security Alarm ......................... .31, 110
Arm The System ..........................31
Selection Of Coolant (Antifreeze) ...............398
Sentry Key Key Programming .........................30
Sentry Key (Immobilizer) ......................29
Sentry Key Replacement ....................22, 30
Service Assistance ......................... .492
Service Contract .......................... .494
Service Manuals .......................... .496
Shift Indicator Light ........................ .207
Shifting ................................ .207
Automatic Transmission ................207, 209
Shoulder Belts ............................ .150Side View Mirror Adjustment
...................51
Signals, Turn ....................... .58, 117, 191
Siri .................................... .483
SiriusXM Guardian Vehicle Health Alert ...................... .481
Snow Chains (Tire Chains) ....................379
Snow Tires .............................. .375
Spare Tires .....................291, 375, 376, 377
Spark Plugs ............................. .398
Specifications Fuel (Gasoline) ......................... .398
Oil.................................. .398
Speed Control Accel/Decel ........................ .220, 221
Cancel ............................... .222
Resume .............................. .222
S
et .................................. .220
Speed Control (Cruise Control) ..........219, 220, 222
Sport Mode .............................. .218
Starting ............................. .196, 197
Automatic Transmission ....................196
Button .................................23
Cold Weather .......................... .199
Engine Fails To Start ..................... .199
Starting And Operating ...................196, 197
12
INDEX 509
