2020 Ram 2500 oil temperature

SERVICING AND MAINTENANCE417
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.
Use the following procedure to check the trans -
mission fluid level properly:

1. Monitor the transmission temperature using the instrument cluster display, and
operate the vehicle as required to reach the normal operating temperature. If the
transmission is not functioning properly, or
the vehicle cannot be driven, see the NOTE
and CAUTION below about checking the
fluid level at colder temperatures.

2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60 seconds, and leave the engine
running for the rest of this procedure.
4. Fully apply the parking brake, and press the brake pedal.
5. Place the gear selector momentarily into each gear position (allowing time for the
transmission to fully engage in each posi -
tion), ending with the transmission in PARK.
6. Remove the dipstick, wipe it clean and rein -
sert it until seated.
7. Remove the dipstick again and note the fluid level on both sides. The fluid level
reading is only valid if there is a solid
coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full
of fluid if the actual level is at or above the
hole. The fluid level should be between the
“HOT” (upper) reference holes on the dipstick at normal operating temperature. If
the fluid level is low, add fluid through the
dipstick tube to bring it to the proper level.
Do not overfill.
Use ONLY the specified fluid
refer to "Fluids And Lubricants" in “Tech -
nical Specifications” for fluid specifications.
After adding any quantity of oil through the
dipstick tube, wait a minimum of two
minutes for the oil to fully drain into the
transmission before rechecking the fluid
level.
NOTE:
If it is necessary to check the transmission
below the operating temperature, the fluid level
should be between the two “COLD” (lower)
holes on the dipstick with the fluid at 60-70°F /
16-21°C. Only use the COLD region of the
dipstick as a rough reference when setting the
fluid level after a transmission service or fluid
change. Re-check the fluid level, and adjust as
required, once the transmission reaches
normal operating temperature.
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.
7

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418SERVICING AND MAINTENANCE
8. Reinsert the dipstick. Check for leaks.
Release the parking brake.
NOTE:
If it is necessary to check the transmission
below the operating temperature, the fluid level
should be between the two COLD (lower) holes
on the dipstick with the fluid at 68-86°F /
20-30°C. Only use the COLD region of the
dipstick as a rough reference when setting the
fluid level after a transmission service or fluid
change. Re-check the fluid level, and adjust as
required, once the transmission reaches
normal operating temperature.Fluid And Filter Changes — Eight-Speed
Transmission
Under normal operating conditions, the fluid
installed at the factory will provide satisfactory
lubrication for the life of the vehicle.
Routine fluid and filter changes are not
required. However, change the fluid and filter if
the fluid becomes contaminated (with water,
etc.), or if the transmission is disassembled for
any reason.
Fluid And Filter Changes — Six Speed
Transmission
Refer to the “Maintenance Plan” for the proper
maintenance intervals.
In addition, change the fluid and filters if the
fluid becomes contaminated (with water, etc.),
or if the transmission is disassembled for any
reason.
Rear Axle And 4x4 Front Driving Axle Fluid
Level
For normal service, periodic fluid level checks
are not required. When the vehicle is serviced
for other reasons the exterior surfaces of the
axle assembly should be inspected. If gear oil
leakage is suspected inspect the fluid level.
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information. This
inspection should be made with the vehicle in a
level position.
For all 2500/3500 Model axles, the fluid level
should be 1/4 in ± 1/4 in (6.4 mm ± 6.4 mm)
below the fill hole on the 9.25 in front, 11.5 in
rear axle, and 12.0 in rear axle.
Drain And Refill
Refer to the “Maintenance Plan” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
NOTE:
The presence of water in the gear lubricant will
result in corrosion and possible failure of differ -
ential components. Operation of the vehicle in
CAUTION!
If the fluid temperature is below 50°F (10°C)
it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough
to produce an accurate reading. Run the
engine at idle, in PARK, to warm the fluid.
CAUTION!
If the fluid temperature is below 50°F (10°C)
it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough
to produce an accurate reading. Run the
engine at idle, in PARK, to warm the fluid.

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444
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA
Vehicle Identification Number
The Vehicle Identification Number (VIN) is found
on the left front corner of the instrument panel,
visible through the windshield.
Vehicle Identification Number

NOTE:
It is illegal to remove or alter the VIN.
BRAKE SYSTEM
If power assist is lost for any reason (for
example, repeated brake applications with the
engine off), the brakes will still function. However, you will experience a substantial
increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses
normal braking capability, the remaining
system will still function with some loss of
overall braking effectiveness. This will be
evident by increased pedal travel during appli
-
cation, greater pedal force required to slow or
stop, and activation of the “Brake Warning
Light” and/or the “ABS Warning Light” during
brake use.
Hydraulic Brake Assist — If Equipped
The brake system power assist is provided by a
hydro-boost unit which shares fluid with the
power steering system. You may experience
some clicking or hissing noises from the
hydro-boost system during hard braking condi -
tions.
NOTE:
Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid
reaches operating temperature.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to
the vehicle. Any time a wheel has been removed
and reinstalled on the vehicle, the lug nuts/
bolts should be torqued using a properly cali -
brated torque wrench using a high quality six
sided (hex) deep wall socket.
Torque Specifications
**Use only authorized dealer recommended lug nuts/
bolts and clean or remove any dirt or oil before tight -
ening.
Lug Nut/ Bolt
Torque Lug Nut/
Bolt Type **Lug
Nut/Bolt Size Lug Nut/
Bolt
Socket Size
130
Ft-Lbs
(176 N·m) Cone
M14 x 1.50 22 mm
140
Ft-Lbs
(190 N·m) Flanged

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450TECHNICAL SPECIFICATIONS
Bio-Diesel Fuel Properties — Low Ambient
Temperatures
Biodiesel fuel may gel or solidify at low ambient
temperatures, which may pose problems for
both storage and operation. Precautions can be
necessary at low ambient temperatures, such
as storing the fuel in a heated building or a
heated storage tank, or using cold temperature
additives.
Fuel In Oil Dilution — Must Adhere To
Required Oil Change Interval
Fuel dilution of lubricating oil has been
observed with the use of biodiesel fuel. Fuel in
oil must not exceed 5%. To ensure this limit is
met your oil change interval must be main -
tained to the following schedule:
Ram PickUp 2500/3500 Only — 15,000 Miles*
(*unless otherwise notified with a oil service
message)
CAUTION!
Under no circumstances should oil change
intervals exceed 15,000 miles (24 000 km)
pickup or 12,500 miles (20 000 km)
chassis cab if operation occurs with greater
than 5% biodiesel blends. Oil change inter -
vals should not exceed 6 months in either
case. Failure to comply with these Oil
Change requirements for vehicles operating
on biodiesel blends up to B20 may result in
premature engine wear. Such wear is not
covered by the New Vehicle Limited
Warranty.
B20 Biodiesel capable: The engine may
suffer severe damage if operated with
concentrations of Biodiesel higher than
20%.

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TECHNICAL SPECIFICATIONS451
FLUID CAPACITIES — GAS ENGINE
FLUID CAPACITIES — DIESEL ENGINE
USMetric
Fuel (Approximate)
2500/3500 Shortbed Models 31 Gallons117 Liters
2500/3500 Longbed Models 32 Gallons121 Liters
2500/3500 Crew Cab Longbed Models — If Equipped 50 Gallons189 Liters
Engine Oil With Filter
6.4L Engine (We recommend you use SAE 0W-40 engine oil meeting the requirements of
FCA Material Standard MS-12633 for use in all operating temperatures.) 7 Quarts
6.6 Liters
Cooling System
6.4L Engine – (We recommend you use Mopar® Antifreeze/Coolant 10 Year/
150,000 Mile Formula that meets the requirements of FCA Material Standard
MS.90032.) 16.6 Quarts
15.7 Liters
USMetric
Fuel (Approximate)
2500/3500 Standard Cab Longbed Models 28 Gallons106 Liters
2500/3500 Crew/Mega Cab Shortbed Models 31 Gallons117 Liters
2500/3500 Crew Cab Longbed Models 32 Gallons121 Liters
2500/3500 Crew Cab Longbed Models — If Equipped 50 Gallons189 Liters
8

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452TECHNICAL SPECIFICATIONS
FLUIDS AND LUBRICANTS — GAS ENGINE
Engine
Diesel Exhaust Fluid Tank 5.7 Gallons21 Liters
Engine Oil With Filter
6.7L Turbo Diesel Engine 12 Quarts11.4 Liters
Cooling System
6.7L Turbo Diesel Engine with 68RFE (Mopar Engine Coolant/Antifreeze 10 Year/
150,000 Mile Formula) 22.0 Quarts
20.8 Liters
USMetric
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/
150,000 Mile Formula OAT (Organic Additive Technology).
Engine Oil – 6.4L For best performance and maximum protection under all types of
operating conditions, the manufacturer only recommends full synthetic
engine oils that meet the American Petroleum Institute (API) categories of
SN. The manufacturer recommends the use of Pennzoil Ultra 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 brand Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 6.4L Engines 89 Octane Recommended - 87 Octane Acceptable (R+M)/2, 0-15% Ethanol
(Do not use E-85).

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TECHNICAL SPECIFICATIONS455
Engine Oil In ambient temperatures above 0°F (-18°C), we recommend you use
10W-30 engine oil such as Mopar, Shell Rotella and Shell Rimula that
meets FCA Material Standard MS-10902 and the API CK-4 engine oil
category is required. Products meeting Cummins CES 20081 may also be
used. The identification of these engine oils is typically located on the
back of the oil container.
In ambient temperatures below 0°F (-18°C), we recommend you use
5W-40
synthetic engine oil such as Mopar, Shell Rotella and Shell Rimula
that meets FCA Material Standard MS-10902 and the API CK-4 engine oil
category is required.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Fuel Filters We recommend you use Mopar Fuel Filter. Must meet 3 micron rating
(engine mounted filter). Must meet 5 micron rating (chassis mounted
filter).
Using a fuel filter that does not meet the manufacturers filtration
and water separating requirements can severely impact fuel system life
and reliability.
Crankcase Ventilation Filter We recommend you use Mopar CCV Filter.
ComponentFluid, Lubricant, or Genuine Part
8

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547
Seats
................................................. 32, 33, 34
Adjustment........................................... 32, 34
Easy Entry................................................... 37
Folding Floor............................................... 86
Head Restraints.......................................... 39
Memory....................................................... 35
Power.......................................................... 34Rear Folding................................................ 32
Reclining Rear............................................. 33
Tilting.......................................................... 32Security Alarm........................................ 25, 131
Selection Of Coolant (Antifreeze)......... 452, 454
Sentry Key Key Programming
........................................ 24
Sentry Key (Immobilizer).................................. 24Sentry Key Replacement................................. 24
Service Assistance......................................... 536
Service Contract............................................ 537
Service Manuals............................................ 539Shift Lever Override....................................... 365
Shifting.......................................................... 231
Automatic Transmission.................. 233, 237
Transfer Case............................................ 249
Transfer Case, Shifting Into Transfer CaseNeutral (N)
............................................ 333
Transfer Case, Shifting Out Of Transfer Case Neutral (N)
............................................ 334
Side Steps, Power............................................ 28
Signals, Turn................................. 52, 140, 210
Siri................................................................ 532
Sliding Rear Window, Power............................ 72
Snow Chains (Tire Chains)............................ 435
Snow Plow.................................................... 329
Snow Tires.................................................... 432
Spare Tires.......................................... 433, 434Spark Plugs................................................... 452
Speed ControlAccel/Decel
.............................................. 275Cancel...................................................... 275
Resume.................................................... 275
Speed Control (Cruise Control)............ 273, 275
Stabilizer/Sway Bar System.......................... 253
Starting....................................... 211, 212, 215Automatic Transmission.................. 211, 215
Button......................................................... 18
Cold Weather............................................ 215
Engine Block Heater........................ 218, 227Engine Fails To Start................................. 214
Starting And Operating.................................. 212
Starting Procedures............................. 212, 215
Starting Procedures (Diesel Engines)........... 215
Starting Procedures (Gas Engines)............... 211
SteeringTilt Column
.................................................. 41
Wheel, Heated...................................... 41, 42
Wheel, Tilt.................................................... 41
Steering Wheel Audio Controls...................... 525
Steering Wheel Mounted Sound System
Controls
........................................................ 525
Steps, Power Side............................................28
Storage............................................................82
Storage Compartment, Center Seat.................82
Storage, Vehicle..................................... 69, 439Storing Your Vehicle...................................... 439
Sun Roof...................................................72, 74
Sunglasses Storage.........................................92Sunshade Operation........................................74
Sway Control, Trailer..................................... 153
Synthetic Engine Oil...................................... 398
T
Tailgate
......................................................... 100
Tailgate, Electronic Lowering...........................75
Telescoping Steering Column...........................41
Temperature Control, Automatic (ATC).............68
TiltDown
...........................................................34
Up................................................................34
Tilt Steering Column.........................................41
Tip Start............................................... 211, 216Tire And Loading Information Placard........... 426
Tire Markings................................................ 422
Tire Safety Information.................................. 42211

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