2020 DODGE CHALLENGER coolant

234
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
3.6L AND 5.7L ENGINES
These engines are equipped with an automatic
oil change indicator system. The oil change
indicator system will remind you that it is time to
take your vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for the vehicle.
Operating conditions such as frequent
short-trips, trailer tow, and extremely hot or cold
ambient temperatures will influence when the
“Change Oil” or “Oil Change Required” message
is displayed. Severe Operating Conditions can
cause the change oil message to illuminate as
early as 3,500 miles (5,600 km) since last
reset. Have your vehicle serviced as soon as
possible, within the next 500 miles (805 km).
The “Oil Change Required” message will be
displayed in the instrument cluster and a single
chime will sound, indicating that an oil change
is necessary.An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change. If a scheduled oil change
is performed by someone other than an
authorized dealer, the message can be reset by
referring to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
further information.
NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for
fleet customers.
Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) or
350 hours of engine run time if the vehicle is
operated in a dusty and off-road environment,
or is operated predominantly at idle or only very
low engine RPM. This type of vehicle use is
considered Severe Duty.
Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check tire pressure and look for unusual
wear or damage. Rotate tires at the first sign
of irregular wear, even if it occurs before your
next scheduled service.
Check the fluid levels of the coolant reservoir,
brake master cylinder and fill as needed.
Check function of all interior and exterior
lights.
Maintenance Plan — 3.6L And 5.7L
Required Maintenance Intervals
Refer to the maintenance chart for the required
maintenance intervals.

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SERVICING AND MAINTENANCE237
Flush and replace the
engine coolant at 10 years or
150,000 miles (240,000 km)
whichever comes first. X
X
Change the manual transmission
fluid (if equipped) if using your
vehicle for any of the following: Most
of your driving is at sustained
speeds during hot weather, above
90°F (32°C), driving in dusty
conditions, or stop and go driving. X
X X
Change the transfer case fluid; if
using your vehicle for any of the
following: police, taxi, fleet, off-road,
or frequent trailer towing. (All Wheel
Drive Only). X
X
Mileage or time passed (whichever
comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
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SERVICING AND MAINTENANCE239
Heavy Duty Use Of The Vehicle
Change engine oil at 4,000 miles (6,500 km) or
350 hours of engine run time if the vehicle is
operated in a dusty and off road environment or
is operated predominately at idle or only very
low engine RPM. This type of vehicle use is
considered Severe Duty.
6.2L SUPERCHARGED AND 6.4L
E
NGINES
The scheduled maintenance services listed in
this manual must be done at the times or
mileages specified to protect your vehicle
warranty and ensure the best vehicle
performance and reliability. More frequent
maintenance may be needed for vehicles in
severe operating conditions, such as dusty
areas and very short trip driving. Inspection and
service should also be done anytime a
malfunction is suspected.
The oil change indicator system will remind you
that it is time to take your vehicle in for
scheduled maintenance.
An “Oil Change Required” message will be
displayed in the instrument cluster and a single
chime will sound, indicating that an oil change
is necessary. Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Have your vehicle serviced as soon as possible,
within the next 500 miles (805 km).
NOTE:
The oil change indicator message will not
monitor the time since the last oil change.
Change your vehicle's oil if it has been six
months since your last oil change, even if the
oil change indicator message is NOT illumi-
nated.
Change your engine oil more often if you drive
your vehicle off-road/track usage for an
extended period of time.
Under no circumstances should oil change
intervals exceed 6,000 miles (10,000 km) or
6 months, whichever comes first.
An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change. If a scheduled oil change
is performed by someone other than an
authorized dealer, the message can be reset by
referring to the steps described under
“Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further
information. At Each Stop For Fuel
Check the engine oil level. Refer to “Engine
Compartment” in this chapter for further
information.
Check the windshield washer solvent and
add if required.
Once A Month
Check tire pressure and look for unusual
wear or damage.
Inspect the battery, and clean and tighten the
terminals as required.
Check the fluid levels of the coolant reservoir,
brake master cylinder and add as needed.
Check all lights and other electrical items for
correct operation.
At Each Oil Change
Change the engine oil filter.
Inspect the brake hoses and lines.
Inspect the CV/Universal joints.
CAUTION!
Failure to perform the required maintenance
items may result in damage to the vehicle.
7

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244SERVICING AND MAINTENANCE
Inspect and replace
the PCV Valve if
necessary X
Replace the spark
plugs — 6.2L
Engine
2X X
Replace the spark
plugs — 6.4L
Engine
3X
Flush and replace
the engine coolant
at 120 months
if not done at
150,000 miles
(240,000 km). X
X
1. For race track usage it is recommended that the axle fluid be changed every 4 hours of on track time.
2. The spark plug change interval is mileage based only, yearly intervals do not apply.
3. The spark plug change interval is mileage based only, yearly intervals do not apply.
Miles:6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000
114,000
120,000
126,000
132,000
138,000
144,000
150,000

Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150

Or Kilometers:
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000

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246SERVICING AND MAINTENANCE
ENGINE COMPARTMENT
3.6L ENGINE
1 — Power Distribution Center (Fuses) 5 — Engine Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Washer Fluid Reservoir Cap
4 — Engine Coolant Pressure Reservoir

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SERVICING AND MAINTENANCE247
5.7L ENGINE
1 — Power Distribution Center (Fuses) 5 — Engine Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Washer Fluid Reservoir Cap
4 — Engine Coolant Pressure Reservoir
7

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248SERVICING AND MAINTENANCE
6.2L SUPERCHARGED ENGINE
1 — Intercooler Fluid Pressure Reservoir 5 — Engine Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Power Distribution Center (Fuses)
4 — Engine Coolant Pressure Reservoir 8 — Washer Fluid Reservoir Cap

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SERVICING AND MAINTENANCE249
6.4L ENGINE
1 — Power Distribution Center (Fuses) 5 — Engine Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Washer Fluid Reservoir Cap
4 — Engine Coolant Pressure Reservoir
7

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