2015 DODGE CHALLENGER octane

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.
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.
5.7L Engine (With Automatic Transmission)
The 5.7L engine (with automatic transmis-
sion) is designed to meet all emissions
regulations and provide satisfactory fuel
economy and performance when using
high-quality unleaded gasoline having an
octane range of 87 to 89. The manufacturer recommends
the use of 89 octane for optimum performance. The use of
5
STARTING AND OPERATING 425

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.
5.7L Engine (With Manual Transmission)
The 5.7L engine (with manual transmis-
sion) is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using
high-quality premium unleaded gasoline
with an octane rating of 91 or higher.
6.4L Engine
The 6.4L engine is designed to meet all emis-
sions regulations and provide excellent 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
426 STARTING AND OPERATING

Problems that result from using methanol/gasoline or
E-85 ethanol blends are not the responsibility of the
manufacturer. While MTBE is an oxygenate made from
methanol, it does not have the negative effects of metha-
nol.
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
428 STARTING AND OPERATING

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.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as
a garage, and never sit in a parked vehicle with the
engine running for an extended period. If the
vehicle is stopped in an open area with the engine
running for more than a short period, adjust the
ventilation system to force fresh, outside air into
the vehicle.
(Continued)
430 STARTING AND OPERATING

ComponentFluid, Lubricant, or Genuine Part
Engine Oil – 6.4L EngineFor best performance and maximum protection under
all types of operating conditions, the manufacturer
only recommends full synthetic engine oils.
The manufacturer recommends the use of Pennzoil
UltraTM 0W-40 or equivalent MOPAR® engine oil
meeting the requirements of Chrysler Material Stan-
dard MS-12633 for use in all operating temperatures.
Engine Oil FilterWe recommend you use MOPAR® Engine Oil Filters.
Spark Plugs – 3.6L EngineWe recommend you use MOPAR® Spark Plugs.
Spark Plugs – 5.7L EngineWe recommend you use MOPAR® Spark Plugs.
Spark Plugs – 6.4L EngineWe recommend you use MOPAR® Spark Plugs.
Fuel Selection 3.6L EngineWe recommend you use 87 Octane
Fuel Selection (5.7L Engine – Automatic Transmission) 89 Octane recommended — 87 Octane acceptable
Fuel Selection (5.7L Engine – Manual Transmission) We recommend you use 91 Octane or higher.
Fuel Selection 6.4LWe recommend you use 91 Octane or higher.
550 MAINTAINING YOUR VEHICLE

Filters
Air Cleaner...........................501
Air Conditioning.......................325
Engine Oil............................501
Engine Oil Disposal.....................500
Flashers................................453
Hazard Warning........................453
Turn Signal............................97
Flash-To-Pass............................144
Flooded Engine Starting....................352
Fluid, Brake.............................552
Fluid Capacities..........................548
Fluid Leaks..............................97
Fluid Level Checks
Automatic Transmission..................522
Brake................................518
Cooling System.........................512
Engine Oil............................496
Fluids, Lubricants and Genuine Parts...........549
Fog Lights..............................142
Folding Rear Seat.........................134
Forward Collision Warning..................183
Freeing A Stuck Vehicle.....................479
Fuel...................................425
Adding..............................431
Additives.............................429
Clean Air.............................427
Ethanol..............................427
Filler Cap (Gas Cap).....................431
Gasoline..............................425
Gauge...............................229
Materials Added........................429
Methanol.............................427
Octane Rating..........................425
Requirements..........................425
Specifications..........................549
Tank Capacity..........................548
Fueling................................431
586 INDEX

Maintenance Free Battery....................502
Maintenance Procedures....................495
Maintenance Schedule......................554
Malfunction Indicator Light (Check Engine).......224
Manual, Service..........................576
Manual Transmission......................355
Fluid Level Check.......................520
Map/Reading Lights.......................144
Master Cylinder (Brakes)....................518
Methanol...............................427
Mirrors................................105
Electric Remote.........................113
Exterior Folding........................113
Heated...............................114
Outside..............................112
Rearview.............................105
Vanity...............................114
Modifications/Alterations, Vehicle...............7
Monitor, Tire Pressure System................417
MOPAR® Parts...........................494
MTBE/ETBE............................427
Multi-Function Control Lever.................143
New Vehicle Break-In Period..................90
Occupant Restraints........................41
Octane Rating, Gasoline (Fuel)................425
Odometer...............................226
Tr i p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..226
Oil, Engine..............................236
Capacity.............................548
Change Interval........................497
Checking.............................496
Dipstick..............................496
Disposal..............................500
Filter................................501
Filter Disposal.........................500
Identification Logo......................49810
INDEX 591