2019 DODGE CHALLENGER SRT fuel additives

While operating on gasoline with the required octane
number, 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 immedi-
ately. Use of gasoline with a lower than recommended
octane number 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 consider-
ing 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 specifi-
cally blended to reduce vehicle emissions and improve air
quality.
The use of reformulated gasoline is recommended. Prop-
erly blended reformulated gasoline will provide improved
performance and durability of engine and fuel system
components.
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 performance.Designated TOP TIER Detergent Gaso-
line contains 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 recommended. 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 dia-
phragm materials.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxygen-
ates such as ethanol.
9
TECHNICAL SPECIFICATIONS 393

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

About Your Brakes..................... .221, 390
Adaptive Cruise Control (ACC) (Cruise Control) . . . .247
Adding Engine Coolant (Antifreeze) .............353
Adding Washing Fluid .......................338
Additives, Fuel ............................393
Adjust Forward ............................ .44, 47
Rearward ............................44, 47
AirBag ................................ .173
Advance Front Air Bag ....................173
Air Bag Operation ........................175
Air Bag Warning Light .....................172
Enhanced Accident Response .............182, 329
Event Data Recorder (EDR) .................329
FrontAirBag .......................... .173
If Deployment Occurs .....................180
Knee Impact Bolsters ..................... .176
Maintaining Your Air Bag System .............183
Maintenance ............................183
Redundant Air Bag Warning Light ............173
Side Air Bags .......................... .176
Transporting Pets ........................205
Air Bag Light .......................118, 172, 206
Air Cleaner, Engine (Engine Air Cleaner Filter) ......342
Air Conditioner Maintenance ..................343 Air Conditioner Refrigerant
................343, 344
Air Conditioner System ..................... .343
Air Conditioning ........................ .70, 75
Air Conditioning Filter ....................77, 344
Air Conditioning, Operating Tips ................76
Air Conditioning System ......................70
Air Filter ............................... .342
Air Pressure Tires................................. .371
Alarm Arm The System .......................36, 37
Panic ..................................23
Rearm The System ........................37
Security Alarm ........................35, 1
19
Alarm System Security Alarm ...........................35
Alterations/Modifications Vehicle .................................5
Android Auto ............................ .471
Antifreeze (Engine Coolant) ................352, 397
Disposal ...............................354
Anti-Lock Brake System (ABS) .................134
Anti-Lock Warning Light .....................125
Apple CarPlay ............................472
482 INDEX

Arming SystemSecurity Alarm ...........................35
Assist, Hill Start .......................... .141
Audio Systems (Radio) .......................403
Auto Down Power Windows ...................79
Automatic Door Locks ........................43
Automatic Headlights ........................63
Automatic High Beams .......................62
Automatic Temperature Control (ATC) ............75
Automatic Transmission ..................... .229
Adding Fluid .....................359, 398, 400
Fluid And Filter Change ...................359
Fluid Change .......................... .359
Fluid Level Check .....................358, 359
Fluid Type .......................358, 398, 400
Special Additives ........................ .358
Automatic Transmission Limp Home Mode .....43, 234
AutoPark ............................... .217
Autostick Operation ............................. .235
Axle Fluid ............................398, 400
Axle Lubrication ........................398, 400
Back-Up .................................272
Battery ...............................120, 338 Charging System Light
....................120
Keyless Key Fob Replacement ................23
Location ...............................338
Belts, Seat ............................... .206
Blind Spot Monitoring .......................144
Body Mechanism Lubrication ..................347
B-Pillar Location .......................... .366
Brake Assist System ........................ .135
Brake Control System ........................135
Brake Fluid ........................356, 398, 400
Brake System ..........................356, 390
Fluid Check ..................... .356, 398, 400
Master Cylinder ........................ .356
Parking ...............................221
W arning

Light .......................118,390
Brake/Transmission Interlock ..................229
Brightness, Interior Lights .....................66
Bulb Replacement ..........................288
Bulbs, Light .......................... .208, 288
Camera, Rear ............................ .272
Capacities, Fluid .......................... .397
Caps, Filler Fuel ................................. .274
Oil (Engine) ........................ .337, 341
12
INDEX 483

Compartment Identification.................337
Coolant (Antifreeze) ...................351, 398
Cooling ...............................351
Exhaust Gas Caution ...................205, 396
Fails To Start ............................218
Flooded, Starting ........................ .218
Fuel Requirements ........................392
Jump Starting ....................319, 320, 321
Oil ............................340, 397, 398
Oil Filler Cap ........................337, 341
Oil Filter ...............................342
Oil Selection ............................397
Oil Synthetic ............................341
Overheating ............................322
Starting ............................214, 215
Engine Oil Viscosity ........................ .341
Enhanced Accident Response Feature .........182, 329
Ethanol ................................. .393
Exhaust Gas Cautions ....................205, 396
Exhaust System ........................205, 349
Exterior Lighting ............................61
Exterior Lights ..........................61, 208
Filler Location Fuel ........................ .274Filters
Air Cleaner ............................ .342
Air Conditioning ..................... .77, 344
Engine Oil ..........................342, 398
Engine Oil Disposal .......................342
Flashers .................................283
Hazard Warning ........................ .283
Turn Signals ..................... .64, 126, 208
Flash-To-Pass ..............................62
Flooded Engine Starting ..................... .218
Fluid, Brake .......................... .398, 400
Fluid Capacities ............................397
Fluid Leaks ...............................209
Fluid Level

Checks
Brake .................................356
Cooling System ..........................351
Engine Oil ............................ .338
Fluids And Lubricants .......................398
Fog Lights ................................64
Fold-Flat Seats .......................... .44, 45
Forward Collision Warning ....................151
Freeing A Stuck Vehicle ..................... .325
Fuel ................................... .392
Additives ............................. .393
486 INDEX