2020 Ram 3500 Chassis Cab automatic transmission fluid

332SERVICING AND MAINTENANCE
Additional Maintenance

Replace engine air filter.
XX X X X

Replace spark plugs.
1
X

Flush and replace the engine coolant
at 10 years or
150,000 miles (240,000 km)
whichever comes first.
X
X

Change the automatic transmission
fluid (AS66RC Transmission Only).
X
X X

Change the automatic transmission
fluid and sump filter (AS66RC
Transmission Only).
X
X

Inspect the transfer case fluid, change
for any of the following: police, taxi,
fleet, or frequent trailer towing.
X
X X 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

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 332

SERVICING AND MAINTENANCE339
Change the transfer case fluid
(4x4). X
X
Change automatic transmission
fluid (AS69RC transmission
only). X
XXX X
Change the automatic
transmission fluid and sump
filter (AS69RC transmission
only). X
X
Change automatic transmission
fluid and filter(s) if using your
vehicle for any of the following:
police, fleet, or frequent trailer
towing (68RFE transmission
only). X
X
Mileage or time passed
(whichever comes first):
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months:6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
96
102
108
114
120
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000
7

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 339

340SERVICING AND MAINTENANCE
Change automatic transmission
fluid and filter(s). X
Replace Crankcase Ventilation
Filter (CCV). X
X
Mileage or time passed
(whichever comes first):
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months:6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
96
102
108
114
120
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 340

344SERVICING AND MAINTENANCE
6.7L Engine
1 — Battery 7 — Brake Fluid Reservoir Cap
2 — Engine Coolant Reservoir Cap 8 — Battery
3 — Engine Coolant Pressure Reservoir 9 — Power Distribution Center (Fuses)
4 — Engine Oil Fill 10 — Washer Fluid Reservoir Cap
5 — Engine Oil Dipstick 11 — Power Steering Fluid Reservoir Cap
6 — Automatic Transmission Dipstick 12 — Air Cleaner Filter

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 344

368SERVICING AND MAINTENANCE
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission
fluid to ensure optimum transmission perfor-
mance and life. Use only the manufacturer’s
specified transmission fluid. Refer to “Fluids
And Lubricants” in “Technical Specifications”. It
is important to maintain the transmission fluid
at the correct level using the recommended
fluid. No chemical flushes should be used in any
transmission; only the approved lubricant
should be used.
Special Additives
The manufacturer strongly recommends
against using any special additives in the trans -
mission. Automatic Transmission Fluid (ATF) is
an engineered product and its performance
may be impaired by supplemental additives.
Therefore, do not add any fluid additives to the
transmission. The only exception to this policy is
the use of special dyes for diagnosing fluid
leaks in six-speed transmissions. Avoid using
transmission sealers as they may adversely
affect seals.
Fluid Level Check — Eight-Speed
Transmission
The fluid level is preset at the factory and does
not require adjustment under normal operating
conditions. Routine fluid level checks are not
required, therefore the transmission has no dipstick. An authorized dealer can check your
transmission fluid level using special service
tools.
If you notice fluid leakage or transmission
malfunction, visit an authorized dealer immedi
-
ately to have the transmission fluid level
checked. Operating the vehicle with an
improper fluid level can cause severe transmis -
sion damage.
Fluid Level Check — Six-Speed Transmission
It is best to check the fluid level when the trans -
mission is at normal operating temperature
(158-176°F / 70-80°C). This normally occurs
after at least 15 miles (25 km) of driving. At
normal operating temperature the fluid cannot
be held comfortably between the fingertips. You
can read the transmission sump temperature in
the instrument cluster screen (refer to “Instru -
ment Cluster Display” in “Getting To Know Your
Instrument Panel” for further information).
CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift
quality and/or torque converter shudder, and
(for six-speed transmissions) will require
more frequent fluid and filter changes. Refer
to “Fluids And Lubricants” in “Technical
Specifications” for fluid specifications.
CAUTION!
Do not use chemical flushes in your
transmission as the chemicals can damage
your transmission components. Such damage
is not covered by the New Vehicle Limited
Warranty.
CAUTION!
If a transmission fluid leak occurs, visit an
authorized dealer immediately. Severe
transmission damage may occur. An
authorized dealer has the proper tools to
adjust the fluid level accurately.

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 368

TECHNICAL SPECIFICATIONS409
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – Eight-Speed Use only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid,
orequivalent. Failure to use the correct fluid may affect the function
orperformance of your transmission.
Automatic Transmission – Six-Speed Use only Mopar ASRC Automatic Transmission Fluid or equivalent. Failure
to use the proper fluid may affect the function or performance of your
transmission.
Transfer Case We recommend you use Mopar Transfer Case Lubricant for Borg Warner
44-44 and 44-45.
Front and Rear Axle Fluid (3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front & 11.5 Rear Axles. Use Mopar Synthetic Gear
Lubricant SAE 75W-140 (MS-8985) in 12.0 Rear axles. Limited slip
additive is required for limited slip axles
Front and Rear Axle Fluid (4500/5500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is required for limited slip axles
Brake Master Cylinder We recommend you use Mopar DOT 3 and SAE J1703.
Power Steering Reservoir We recommend you use Mopar Power Steering Fluid +4, Mopar ATF+4
Automatic Transmission Fluid.
8

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 409

412TECHNICAL SPECIFICATIONS
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission Only use Mopar ASRC Automatic Transmission Fluid or equivalent. Failure
to use the proper fluid may affect the function or performance of your
transmission.
Transfer Case We recommend you use Mopar BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid (3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front & 11.5 Rear Axles. Use Mopar Synthetic Gear
Lubricant SAE 75W-140 (MS-8985) in 12.0 Rear axles. Limited slip
additive is required for limited slip axles.
Front and Rear Axle Fluid (4500/5500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is required for limited slip axles.

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 412

504
INDEX
A
Accessories..........................................413Mopar.............................................413Adaptive Cruise Control (ACC) (Cruise
Control)...............................................232Adding Engine Coolant (Antifreeze)............364Adding Fuel..........................................269Additives, Fuel......................................400AdjustDown................................................31Forward.............................................31Rearward...........................................31Up....................................................31Adjustable Pedals....................................39Air BagAir Bag Operation...............................153Air Bag Warning Light..........................151Enhanced Accident Response.......158, 328Event Data Recorder (EDR)...................328If Deployment Occurs..........................157Knee Impact Bolsters..........................154Maintaining Your Air Bag System............158Maintenance.....................................158Transporting Pets...............................179Air Bag Light......................... 108, 151, 181Air Cleaner, Engine (Engine Air
Cleaner Filter)............................... 349, 371
Air Conditioner Maintenance.................... 351Air Conditioner Refrigerant............... 351, 352Air Conditioner System............................ 351Air Conditioning................................. 52, 62Air Conditioning Filter....................... 64, 352Air Conditioning System............................ 62Air Conditioning, Operating Tips.................. 63Air Filter.............................................. 349Air PressureTires............................................... 383AlarmPanic................................................ 14Security Alarm............................. 24, 110Alterations/ModificationsVehicle.............................................. 11Android Auto........................................ 496Antifreeze (Engine Coolant)...................... 364Capacites......................................... 405Disposal.......................................... 365Anti-Lock Brake System (ABS)................... 120Anti-Lock Warning Light........................... 114Apple CarPlay....................................... 497Assist, Hill Start..................................... 122Audio Systems (Radio)............................ 414Auto Down Power Windows........................ 65Auto Unlock, Doors................................ 216Automatic Door Locks............................... 29
Automatic Headlights............................... 46Automatic Temperature Control (ATC).......... 62Automatic Transmission................. 213, 370Adding Fluid..................................... 370Fluid And Filter Change....................... 370Fluid Change.................................... 370Fluid Level Check.............................. 368Fluid Type........................ 368, 409, 412Shifting........................................... 207Special Additives............................... 368Automatic Transmission Limp Home Mode.. 216AUX Camera................................. 261, 267Auxiliary Driving Systems........................ 129Axle Fluid.....................370, 371, 409, 412Axle Lubrication............................ 370, 371
B
Back-Up.............................................. 258Back-Up Camera................................... 258Battery....................................... 110, 346Blanket........................................... 196Charging System Light........................ 110Keyless Key Fob Replacement................ 14Battery Saver Feature.............................. 48Belts, Seat........................................... 180Body Builders Guide................................ 11Body Mechanism Lubrication................... 360

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 504