2020 DODGE CHALLENGER coolant

262SERVICING AND MAINTENANCE
(Continued)
Under normal operating conditions, the
catalytic converter will not require
maintenance. However, it is important to keep
the engine properly tuned to ensure proper
catalyst operation and prevent possible catalyst
damage.
NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
In unusual situations involving grossly
malfunctioning engine operation, a scorching
odor may suggest severe and abnormal catalyst
overheating. If this occurs, stop the vehicle, turn
off the engine and allow it to cool. Service,
including a tune-up to manufacturer's
specifications, should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
Do not shut off the engine or interrupt the
ignition when the transmission is in gear and
the vehicle is in motion.
Do not try to start the engine by pushing or
towing the vehicle.
Do not idle the engine with any spark plug
wires disconnected or removed, such as
when diagnostic testing, or for prolonged
periods during very rough idle or malfunc-
tioning operating conditions.
NOTE:
The vehicle exhaust system may be equipped
with an Electronic Exhaust Valve (EEV) system,
if the exhaust system is replaced with after -
market products a Malfunction Indicator Lamp
(MIL) will illuminate.
COOLING SYSTEM
Coolant Checks
Check engine coolant (antifreeze) protection
every 12 months (before the onset of freezing
weather, where applicable). If coolant is dirty or
rusty in appearance, the system should be
drained, flushed, and refilled with fresh coolant.
Check the front of the radiator for any
accumulation 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 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.
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 automati -
cally and may start at any time, whether the
engine is running or not.
When working near the radiator cooling fan,
disconnect 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.
WARNING! (Continued)

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SERVICING AND MAINTENANCE263
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.
Refer to the “Maintenance Plan” in this section
for the proper maintenance intervals.
Selection Of Coolant
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information. NOTE:
Mixing of engine coolant (antifreeze) other
than specified Organic Additive Technology
(OAT) engine coolant (antifreeze), may result
in engine damage and may decrease corro
-
sion protection. Organic Additive Technology
(OAT) engine coolant is different and should
not be mixed with Hybrid Organic Additive
Technology (HOAT) engine coolant (anti -
freeze) 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 inhibitors or antirust prod -
ucts, 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 (antifreeze) is
not recommended.
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.
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 (antifreeze) can
be used up to 10 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.
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):
7

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264SERVICING AND MAINTENANCE
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 (antifreeze) 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 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 a local autho -
rized dealer.
Mixing engine coolant (antifreeze) types is
not recommended 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
possible.
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 equipped).
The cap should be inspected and cleaned if
there is any accumulation of foreign material on
the sealing surfaces. NOTE:
Be sure you do not mix the engine coolant
system pressure cap with the intercooler
system pressure cap. These caps are not inter
-
changeable.
WARNING!
Do not open hot engine cooling system.
Never add engine coolant (antifreeze) when
the engine is overheated. 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 specified for your vehicle. Personal
injury or engine damage may result.

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SERVICING AND MAINTENANCE265
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze)
is a regulated 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 containers 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 compart
-
ment. This is normally a result of moisture from
rain, snow, or high humidity accumulating on
the radiator and being vaporized when the ther -
mostat opens, allowing hot engine coolant (anti -
freeze) to enter the radiator.
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) addi-
tions are required, the cooling system should
be pressure tested for leaks.
Maintain engine coolant (antifreeze) concen -
tration at a minimum of 50% OAT coolant
(conforming to MS.90032) and distilled
water for proper corrosion protection of your
engine which contains aluminum compo -
nents.
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 ther -
mostat. Other designs may result in unsatis -
factory engine coolant (antifreeze)
performance, poor gas mileage, and
increased emissions.
7

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TECHNICAL SPECIFICATIONS297
FLUID CAPACITIES — NON-SRT
USMetric
Fuel (Approximate)
3.6L Engine (87 Octane (R+M)/2 Method, 0-15% Ethanol) 18.5 Gallons70 Liters
5.7L Engine (Automatic Transmission: 87 Octane or 89 Octane (R+M)/2 Method, 0-15%
Ethanol. Manual Transmission: 91 Octane or higher, 0-15% Ethanol) 18.5 Gallons
70 Liters
6.4L Engine (91 Octane or higher (R+M)/2 Method, 0-15% Ethanol) 18.5 Gallons70 Liters
Engine Oil With Filter
3.6L Engine (SAE 5W-20, API Certified) 6 Quarts5.6 Liters
5.7L Engine (SAE 5W-20, API Certified) 7 Quarts6.6 Liters
6.4L Engine (SAE 0W-40, Synthetic API Certified) 7 Quarts6.6 Liters
Cooling System*
3.6L Engine (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile (240,000 km)
Formula or equivalent) 11.1 Quarts
10.5 Liters
5.7L Engine (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile (240,000 km)
Formula or equivalent) 14.7 Quarts
13.9 Liters
6.4L Engine (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile (240,000 km)
Formula or equivalent) 15.2 Quarts
14.4 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
8

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298TECHNICAL SPECIFICATIONS
FLUID CAPACITIES — SRT
USMetric
Fuel (Approximate)
91 Octane or higher (R+M)/2 Method, 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 (Mopar Antifreeze/Engine Coolant (OAT coolant conforming to
MS.90032) 10 Year/150,000 Mile (240,000 km) 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 (240,000 km) Formula or equivalent) 4.5 Quarts
4.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.

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TECHNICAL SPECIFICATIONS299
FLUIDS AND LUBRICANTS — NON-SRT
ENGINE
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000
Mile (240,000 km) Formula OAT (Organic Additive Technology).
Engine Oil – 3.6L & 5.7L Engine We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of FCA Material Standard MS-6395 such as Mopar SAE
5W-20, Pennzoil SAE 5W-20, and Pennzoil gold 5W-20 semi-synthetic oil.
Refer to your engine oil filler cap for correct SAE grade.
Engine Oil – 6.4L Engine For 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 Ultra Platinum
0W-40 or equivalent Mopar engine oil meeting the requirements of
FCA Material Standard MS-12633 for use in all operating temperatures.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 3.6 Engine 87 Octane (R+M)/2 Method, 0-15% Ethanol.
Fuel Selection – 5.7 Engine With Automatic Transmission 89 Octane recommended – 87 Octane acceptable (R+M)/2 Method,
0-15% Ethanol.
Fuel Selection – 6.4L Engine & 5.7 Engine With Manual Transmission 91 Octane or higher (R+M)/2 Method, 0-15% Ethanol.
8

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300TECHNICAL SPECIFICATIONS
(Continued)
(Continued)
CAUTION!
Mixing of engine coolant (antifreeze) other
than specified 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 autho -
rized dealer as soon as possible.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.
CAUTION! (Continued)
This vehicle has not been designed for use
with propylene glycol-based engine coolant
(antifreeze). Use of propylene glycol-based
engine coolant (antifreeze) is not recom -
mended.
CAUTION! (Continued)

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