2019 CHRYSLER 300 engine overheat

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.
410 TECHNICAL SPECIFICATIONS

Electronic Stability Control (ESC)...............149
Electronic Throttle Control Warning Light .........133
Emergency, In Case Of Freeing Vehicle When Stuck .................335
Hazard Warning Flasher ...................300
Jacking ........................... .321, 373
Jump Starting .......................... .329
Towing ............................... .336
Emission Control System Maintenance ............143
Engine .............................. .348, 349
Air Cleaner ............................ .355
Block Heater ........................... .225
Break-In Recommendations .................225
Checking Oil Level ...................... .350
Compartment ....................... .348, 349
Compartment Identification .................348
Coolant (Antifreeze) ...................365, 415
Cooling .............................. .364
Exhaust Gas Caution ...................212, 411
Fails To Start ........................... .224
Flooded, Starting ........................ .224
Fuel Requirements ....................407, 414
Jump Starting .......................... .329
Oil ........................... .353, 414, 415
Oil Filler Cap ....................... .348, 354Oil Filter
.............................. .355
Oil Selection ........................ .353, 414
Oil Synthetic ........................... .354
Overheating ........................... .332
Starting ........................... .220, 221
Engine Oil Viscosity .....................353, 354
Engine Oil Viscosity Chart ....................353
Enhanced Accident Response Feature .........194, 339
Ethanol ............................. .409, 411
Exhaust Gas Cautions ................... .212, 411
Exhaust

System ....................... .212, 362
Exterior Lighting ............................66
Exterior Lights ......................... .66, 215
Filters Air Cleaner ............................ .355
Air Conditioning ..................... .86, 357
Engine Oil ......................... .355, 415
Engine Oil Disposal ...................... .355
Flashers ................................ .300
Hazard Warning ........................ .300
Turn Signals ..................... .70, 141, 215
Flash-To-Pass ..............................68
Flexible Fuel Vehicles Cruising Range ......................... .413
476 INDEX

Octane Rating, Gasoline (Fuel)...........407, 408, 415
Oil Change Indicator ....................... .124
Reset ................................ .124
Oil, Engine ........................... .353, 415
Capacity .............................. .414
Change Interval ........................ .353
Checking ............................. .350
Dipstick .............................. .350
Disposal .............................. .355
Filter ............................. .355, 415
Filter Disposal .......................... .355
Identification Logo ...................... .353
Materials Added To ...................... .354
Pressure Warning Light ....................134
Recommendation .....................353, 414
Synthetic ............................. .354
Viscosity ....................... .353, 354, 414
Oil Filter, Change ......................... .355
Oil Filter, Selection ......................... .355
Oil Pressure Light ......................... .134
Onboard Diagnostic System ...................142
Operating Precautions ...................... .142
Operator Manual Owner’s Manual .......................5,470
Outside Rearview Mirrors .....................61 Overheating, Engine
....................... .332
Owner ’s Manual (Operator Manual) ...............5
Paddle Shifters ........................... .237
Paddle Shift Mode ......................... .237
Paint Care ............................... .398
Panic Alarm ...............................22
Parking Brake ............................ .226
ParkSense System, Rear ..................... .264
Passive Entry ..............................39
Personalized Main Menu .....................421
Pets ................................... .212
Pinch Protection ............................
93
Placard, Tire And Loading Information ...........379
Power Brakes ............................... .405
Deck Lid Release .........................95
Distribution Center (Fuses) ..................316
Door Locks ..............................38
Mirrors ................................62
Outlet (Auxiliary Electrical Outlet) ............113
Seats ..................................46
Steering .............................. .239
Sunroof ................................90
Tilt/Telescoping Steering Column ..............58
12
INDEX 481