2008 DODGE CHALLENGER octane

FUEL REQUIREMENTS
6.1L Engine
The 6.1L engine is designed to meet all
emissions regulations and provide excel-
lent fuel economy and performance when
using high-quality premium unleaded
gasoline with an octane rating of 91 or
higher.
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 gasolines contain oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer supports the use of reformulated gaso-
lines. Properly blended reformulated gasolines will pro-
vide excellent performance and durability of engine and
fuel system components.
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Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as 10% ethanol, MTBE, and ETBE. Oxygen-
ates are required in some areas of the country during the
winter months to reduce carbon monoxide emissions.
Fuels blended with these oxygenates may be used in
your vehicle.
CAUTION!
DO NOT use gasolines containing Methanol or E85
Ethanol. Use of these blends may result in starting
and driveability problems and may damage critical
fuel system components.
Problems that result from using methanol/gasoline or E85
ethanol blends are not the responsibility of the manufac-
turer. While MTBE is an oxygenate made from methanol,
it does not have the negative effects of methanol.
MMT In Gasoline
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. It is even more important to
look for gasoline without MMT in Canada, because MMT
can be used at levels higher than those allowed in the
United States. MMT is prohibited in Federal and Califor-
nia reformulated gasoline.
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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 performance
and damage the emissions control system.
•An out-of-tune engine or certain fuel or ignition mal-
functions 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 malfunc-
tioning and may require immediate service. 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 performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE: Intentional tampering with the emissions con-
trol system can result in civil penalties being assessed
against you.
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FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluids, Lubricants, and Genuine Parts
Engine Coolant MOPARAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid
Organic Additive Technology) or equivalent
Engine Oil (6.1L) 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 SM or SM/CF, and
meet the requirements of Chrysler Material Standard MS-10725. The manu-
facturer recommends the use of a full synthetic engine oil, such as Mobil 1 
SAE 0W-40 or equivalent. For additional information, refer to the “Engine Oil
Selection” and “Engine Oil Viscosity (SAE Grade)” in the “Maintenance Pro-
cedures” section of this manual.
Oil Filter (6.1L) MOPAR 05281090 or equivalent
Spark Plugs (6.1L) PLZTR5A-13 (Gap.050 in [1.27 mm])
Fuel Selection (6.1L) Premium Unleaded 91 Octane Only or higher
342 MAINTAINING YOUR VEHICLE
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FlashersHazard Warning ....................... 280
Turn Signal ...................... 70,119,152
Flash-To-Pass ........................... 120
Flooded Engine Starting ................... 218
Fluid, Brake ........................... 343
Fluid Capacities ......................... 341
Fluid Leaks ............................. 70
Fluid Level Checks Automatic Transmission ................. 322
Brake ............................... 321
Cooling System ....................... 314
Engine Oil ........................... 301
Power Steering ........................ 310
Fluids ................................ 342
Fluids, Lubricants and Genuine Parts .......... 342
Fog Lights .......................... 118,154
Folding Rear Seat ........................ 113
Freeing A Stuck Vehicle ................... 289 Front Suspension Ball Joints
................ 311
Front Wheel Bearings ..................... 324
Fuel ................................. 270
Adding ............................. 274
Additives ............................ 272
CleanAir ............................ 270
Ethanol ............................. 271
Filler Cap (Gas Cap) .................... 274
Filter ............................... 304
Gasoline ............................ 270
Gauge .............................. 150
Hoses .............................. 319
Materials Added ....................... 272
Methanol ............................ 271
Octane Rating ...................... 270,342
Requirements ......................... 270
Specifications ......................... 342
Tank Capacity ........................ 341
Fuel System Caution ..................... 274
368 INDEX
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Maintenance Free Battery.................. 307
Maintenance, General ..................... 300
Maintenance Procedures ................... 300
Maintenance Schedule .................... 346
Maintenance, Sunroof ..................... 139
Malfunction Indicator Light (Check Engine) . . 158,298
Manual, Service ......................... 357
Map/Reading Lights .................. 120,129
Master Cylinder (Brakes) .................. 321
Methanol ............................. 271
Mini-Trip Computer ...................... 163
Mirrors ................................ 75 Automatic Dimming ..................... 75
Electric Powered ....................... 76
Electric Remote ........................ 76
Exterior Folding ........................ 76
Heated .............................. 77
Outside .............................. 75
Vanity ............................... 77 Modifications/Alterations, Vehicle
............. 7
Monitor, Tire Pressure System ............... 264
Mopar Parts ......................... 299,356
MP3 Player ............................ 191
MTBE/ETBE ........................... 271
Multi-Function Control Lever ............... 119
Navigation Radio ........................ 191
Navigation System ....................... 191
New Vehicle Break-In Period ................ 67
Occupant Restraints ....................... 37
Octane Rating, Gasoline (Fuel) ............270,342
Odometer ............................. 150
Trip ................................ 150
Oil Change Indicator ..................... 162
Oil Change Indicator, Reset ................. 162
Oil, Engine ......................... 301,342
Capacity ............................ 341
INDEX 373
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