cooling DODGE CHALLENGER SRT 2018 User Guide

Cooling System
WARNING!
•You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never open a cooling system pressure cap
when the radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from
the radiator cooling fan when the hood is raised. The
fan starts automatically and may start at any time,
whether the engine is running or not.
• When working near the radiator cooling fan, discon-
nect the fan motor lead or turn the ignition to the
OFF mode. The fan is temperature controlled and can
start at any time the ignition is in the ON mode.
Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). If the engine coolant (antifreeze) is dirty, the system
should be drained, flushed, and refilled with fresh OAT
coolant (conforming to MS.90032) by an authorized dealer. Check the front of the A/C condenser for any accumula-
tion of bugs, leaves, etc. If dirty, clean by gently spraying
water from a garden hose vertically down the face of the
condenser.
Check the coolant recovery bottle and/or the supercharger
coolant recovery bottle (if equipped with the 6.2L Super-
charged engine) tubing for brittle rubber, cracking, tears,
cuts, and tightness of the connection at the bottle and
radiator. Inspect the entire system for leaks. DO NOT
REMOVE THE COOLANT PRESSURE CAP WHEN THE
COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
NOTE:
Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed to
be added to the system please contact an authorized dealer.
If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
OAT coolant (antifreeze) (conforming to MS.90032).
NOTE: If equipped with the 6.2L Supercharged engine the
intercooler must be vacuum flushed and filled. If any
coolant is needed to be added to the system please contact
an local authorized dealer.
336 SERVICING AND MAINTENANCE

Refer to the “Maintenance Plan” in this section for the
proper maintenance intervals.
Selection Of Coolant
Refer to “Fluids And Lubricants” in “Technical Specifica-
tions” for further information.
NOTE:
•Mixing of engine coolant (antifreeze) other than speci-
fied Organic Additive Technology (OAT) engine coolant
(antifreeze), may result in engine damage and may
decrease corrosion protection. Organic Additive Tech-
nology (OAT) engine coolant is different and should not
be mixed with Hybrid Organic Additive Technology
(HOAT) engine coolant (antifreeze) or any “globally
compatible” coolant (antifreeze). If a non-OAT engine
coolant (antifreeze) is introduced into the cooling system
in an emergency, the cooling system will need to be
drained, flushed, and refilled with fresh OAT coolant
(conforming to MS.90032), by an authorized dealer as
soon as possible. •
Do not use water alone or alcohol-based engine coolant
(antifreeze) products. Do not use additional rust inhibi-
tors or antirust products, as they may not be compatible
with the radiator engine coolant and may plug the
radiator.
• This vehicle has not been designed for use with propyl-
ene glycol-based engine coolant (antifreeze). Use of
propylene glycolbased engine coolant (antifreeze) is not
recommended.
• Some vehicles require special tools to add coolant prop-
erly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed
to be added to the system please contact an authorized
dealer.
Adding Coolant
Your vehicle has been built with an improved engine
coolant (OAT coolant conforming to MS.90032) that allows
extended maintenance intervals. This engine coolant (anti-
freeze) can be used up to ten years or 150,000 miles
(240,000 km) before replacement. To prevent reducing this
extended maintenance period, it is important that you use
the same engine coolant (OAT coolant conforming to
MS.90032) throughout the life of your vehicle.
8
SERVICING AND MAINTENANCE 337

Please review these recommendations for using Organic
Additive Technology (OAT) engine coolant (antifreeze)
that meets the requirements of FCA Material Standard
MS.90032. When adding engine coolant (antifreeze):
•We recommend using Mopar Antifreeze/Coolant 10
Year/150,000 Mile (240,000 km) Formula OAT (Organic
Additive Technology) that meets the requirements of
FCA Material Standard MS.90032.
• Mix a minimum solution of 50% OAT engine coolant
that meets the requirements of FCA Material Standard
MS.90032 and distilled water. Use higher concentrations
(not to exceed 70%) if temperatures below 34°F (37°C)
are anticipated. Please contact an authorized dealer for
assistance.
• Use only high purity water such as distilled or deionized
water when mixing the water/engine coolant (anti-
freeze) solution. The use of lower quality water will
reduce the amount of corrosion protection in the engine
cooling system. NOTE:
•
It is the owner’s responsibility to maintain the proper
level of protection against freezing according to the
temperatures occurring in the area where the vehicle is
operated.
• Some vehicles require special tools to add coolant prop-
erly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed
to be added to the system, please contact a local autho-
rized dealer.
• Mixing engine coolant (antifreeze) types is not recom-
mended and can result in cooling system damage. If
HOAT and OAT coolant are mixed in an emergency,
have a authorized dealer drain, flush, and refill with
OAT coolant (conforming to MS.90032) as soon as pos-
sible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
338 SERVICING AND MAINTENANCE

NOTE:Be sure you do not mix the engine coolant system
pressure cap with the intercooler system pressure cap.
These caps are not interchangeable.
WARNING!
• Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to cool an
overheated engine. Heat causes pressure to build up
in the cooling system. To prevent scalding or injury,
do not remove the pressure cap while the system is
hot or under pressure.
• Do not use a pressure cap other than the one speci-
fied for your vehicle. Personal injury or engine
damage may result.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is a regu-
lated substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol-based coolant in open contain-
ers or allow it to remain in puddles on the ground. If
ingested by a child or pet, seek emergency assistance
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the engine coolant (antifreeze) level is
adequate. With the engine OFF and cold, the level of the
engine coolant (antifreeze) in the bottle should be between
the ranges indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing engine
coolant (antifreeze). Advise your service attendant of this.
As long as the engine operating temperature is satisfactory,
the coolant bottle need only be checked once a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the coolant
bottle. Do not overfill.
Points To Remember
NOTE: When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
8
SERVICING AND MAINTENANCE 339

If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
•Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible
brake damage. You would not have your full braking
capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
Check the fluid level in the master cylinder immediately if
the brake system warning light indicates system failure.
Check the fluid level in the master cylinder when perform-
ing underhood services.
340 SERVICING AND MAINTENANCE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
91 Octane or higher, 0-15% Ethanol 18.5 Gallons70 Liters
Engine Oil With Filter
SAE 0W-40, Synthetic API Certified 7 Quarts6.6 Liters
Cooling System *
6.2 Supercharged & 6.4L Engine (Mopar Antifreeze/Engine Coolant
(OAT coolant conforming to MS.90032) 10 Year/150,000 Mile Formula
or equivalent) 15.2 Quarts
14.4 Liters
6.2 Supercharged Intercooler (Mopar Antifreeze/Engine Coolant (OAT
coolant conforming to MS.90032) 10 Year/150,000 Mile Formula or
equivalent) 4.5 Quarts
4.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
9
TECHNICAL SPECIFICATIONS 381

CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine dam-
age and may decrease corrosion protection. Organic
Additive Technology (OAT) engine coolant is differ-
ent and should not be mixed with Hybrid Organic
Additive Technology (HOAT) engine coolant (anti-
freeze) or any “globally compatible” coolant (anti-
freeze). If a non-OAT engine coolant (antifreeze) is
introduced into the cooling system in an emergency,
the cooling system will need to be drained, flushed,
(Continued)
CAUTION! (Continued)
and refilled with fresh OAT coolant (conforming to
MS.90032), by an authorized dealer as soon as pos-
sible.
• Do not use water alone or alcohol-based engine
coolant (antifreeze) products. Do not use additional
rust inhibitors or antirust products, as they may not
be compatible with the radiator engine coolant and
may plug the radiator.
• This vehicle has not been designed for use with
propylene glycol-based engine coolant (antifreeze).
Use of propylene glycol-based engine coolant (anti-
freeze) is not recommended.
9
TECHNICAL SPECIFICATIONS 383

CargoVehicle Loading ......................... .268
Car Washes .............................. .369
Cellular Phone ........................... .442
Certification Label ......................... .268
Chains, Tire ............................. .365
Changing A Flat Tire ....................... .344
Chart, Tire Sizing .......................... .346
Check Engine Light (Malfunction Indicator Light). . . .124
Checking Your Vehicle For Safety ...............199
Checks, Safety ............................ .199
Child Restraint ........................... .180
Child Restraints Booster Seats ........................... .184
Child Seat Installation .....................196
How To Stow An unused ALR Seat Belt ........192
Infant And Child Restraints .................182
Lower Anchors And Tethers For Children .......186
Older Children And Child Restraints ...........183
Seating Positions ........................ .185
Clean Air Gasoline ........................ .377
Cleaning Wheels ............................... .364
Climate Control ............................67
Cold Weather Operation ......................211 Compact Disc (CD) Maintenance
................459
Compact Spare Tire ........................ .362
Contract, Service .......................... .464
Cooling Pressure Cap (Radiator Cap) ............338
Cooling System ........................... .336
Adding Coolant (Antifreeze) .................337
Coolant Level ....................... .336, 339
Cooling Capacity ........................ .381
Disposal Of Used Coolant ..................339
Drain, Flush, And Refill ....................336
Inspection ............................. .339
Points To Remember ..................... .339
Pr

essure Cap ........................... .338
Radiator Cap .......................... .338
Selection Of Coolant (Antifreeze) .......337, 381, 382
Corrosion Protection ....................... .368
Cruise Control (Speed Control) ..............237, 240
Cruise Light ............................. .121
Customer Assistance ....................... .462
Customer Programmable Features ...............389
Cybersecurity ............................ .388
Daytime Running Lights ......................58
Dealer Service ............................ .324
470 INDEX

Compartment Identification.................320
Coolant (Antifreeze) ...................336, 382
Cooling .............................. .336
Exhaust Gas Caution ...................200, 380
Fails To Start ............................211
Flooded, Starting .........................211
Fuel Requirements ....................... .376
Jump Starting ....................... .303, 304
Oil ........................... .324, 381, 382
Oil Filler Cap ....................... .320, 325
Oil Filter .............................. .326
Oil Selection ........................... .381
Oil Synthetic ........................... .325
Overheating ........................... .306
Starting ........................... .208, 209
Engine Oil Viscosity ........................ .325
Enhanced Accident Response Feature .........177, 312
Ethanol ................................. .378
Exhaust Gas Cautions ....................200, 380
Exhaust System ....................... .200, 334
Exterior Lighting ............................57
Exterior Lights ......................... .57, 203
Filler Location Fuel ........................ .267Filters
Air Cleaner ............................ .326
Air Conditioning ..................... .74, 328
Engine Oil ......................... .326, 382
Engine Oil Disposal ...................... .326
Flashers ................................ .274
Hazard Warning ........................ .274
Turn Signals ..................... .61, 121, 203
Flash-To-Pass ..............................59
Flooded Engine Starting ......................211
Fluid, Brake .......................... .382, 384
Fluid Capacities ........................... .381
Fluid Leaks .............................. .203
Fluid Level Checks Brake ................................ .340
Cooling
System......................... .336
Engine Oil ............................ .322
Power Steering ......................... .236
Fluids And Lubricants ...................... .382
Fog Lights ................................61
Fold-Flat Seats .......................... .40, 46
Forward Collision Warning ....................145
Freeing A Stuck Vehicle ..................... .309
Fuel ................................... .376
Additives ............................. .377
472 INDEX