coolant Ram 3500 2020 Service Manual

462TECHNICAL SPECIFICATIONS
(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.
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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464TECHNICAL SPECIFICATIONS
FLUIDS AND LUBRICANTS — DIESEL ENGINE
ENGINE
Component Fluid, Lubricant, or Genuine Part
Engine CoolantWe recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km) Formula OAT (Organic
Additive Technology).
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.

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552
INDEX
A
Adaptive Cruise Control (ACC)
(Cruise Control)
.............................................. 282Adding Engine Coolant (Antifreeze)............... 418Adding Fuel.......................................... 319, 320Additives, Fuel............................................... 454AdjustDown........................................................... 35Forward....................................................... 35Rearward..................................................... 35Up................................................................ 35Adjustable Pedals............................................ 42Air BagAir Bag Operation...................................... 185Air Bag Warning Light................................ 182Enhanced Accident Response......... 189, 384Event Data Recorder (EDR)....................... 384If Deployment Occurs................................ 188Knee Impact Bolsters................................ 185Maintaining Your Air Bag System.............. 190Maintenance............................................. 190Redundant Air Bag Warning Light.............183Transporting Pets...................................... 209Air Bag Light............................... 130, 182, 210Air Cleaner, Engine (Engine Air
Cleaner Filter)...................................... 403, 425
Air Conditioner Maintenance........................ 405Air Conditioner Refrigerant.................. 405, 406Air Conditioner System................................. 405Air Conditioning......................................... 57, 67Air Conditioning Filter..............................69, 406Air Conditioning System................................... 67Air Conditioning, Operating Tips....................... 68Air Filter........................................................ 403Air PressureTires......................................................... 436AlarmPanic........................................................... 15Security Alarm....................................25, 132Alterations/ModificationsVehicle......................................................... 12Android Auto................................................. 545Antifreeze (Engine Coolant)................. 418, 459Capacites................................................. 460Disposal................................................... 420Anti-Lock Brake System (ABS)...................... 144Anti-Lock Warning Light................................ 137Apple CarPlay................................................ 546Assist, Hill Start............................................. 151Audio Systems (Radio).................................. 467Auto Down Power Windows............................. 70Automatic Door Locks...................................... 30
Automatic Headlights.......................................50Automatic Tailgate Release.............................74Automatic Temperature Control (ATC)..............67Automatic Transmission....................... 235, 424Adding Fluid.............................................. 424Fluid And Filter Change............................. 424Fluid Change............................................. 424Fluid Level Check............................. 422, 423Fluid Type............................... 422, 463, 466Shifting..................................................... 239Special Additives...................................... 422Automatic Transmission Limp Home Mode... 238AUX Camera......................................... 311, 318Auxiliary Driving Systems.............................. 153Axle Fluid.....................................424, 463, 466Axle Lubrication............................................ 424
B
Back-Up......................................................... 309Back-Up Camera........................................... 309Bar, Stabilizer/Sway System......................... 260Battery................................................. 132, 400Blanket..................................................... 225Charging System Light.............................. 132Keyless Key Fob Replacement....................15Battery Saver Feature......................................53

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553
Belts, Seat
..................................................... 210Blind Spot Monitoring.................................... 153Body Builders Guide........................................ 12Body Mechanism Lubrication........................ 414B-Pillar Location............................................. 433Brake Assist System...................................... 145Brake Control System.................................... 145Brake Fluid.......................................... 421, 463Brake System...................................... 421, 452Fluid Check............................................... 421Master Cylinder......................................... 421Parking...................................................... 231Warning Light............................................ 131Brake/Transmission Interlock....................... 235Bulb Replacement......................................... 351Bulbs, Light.......................................... 212, 351
C
Cab Top Clearance Lights.............................. 357Camera.......................................................... 309Camera, AUX........................................ 311, 318Camera, Rear...................................... 309, 312Camper............................................................ 98Capacities, Antifreeze (Engine Coolant)......... 460Capacities, Fluid.................................. 459, 460Caps, Filler Oil (Engine)...................................... 396, 402Radiator (Coolant Pressure)...................... 419Car Washes................................................... 448Carbon Monoxide Warning.................. 209, 456
Cargo Light....................................................... 52Cellular Phone.............................................. 540Center High Mounted Stop Light................... 356Center Seat Storage Compartment.................. 81Charge Air Cooler.......................................... 421Chart, Tire Sizing........................................... 430Check Engine Light (Malfunction
Indicator Light).............................................. 143Checking Your Vehicle For Safety................. 209Checks, Safety.............................................. 209Child Restraint.............................................. 191Child RestraintsBooster Seats........................................... 194Child Seat Installation..................... 202, 204How To Stow An unused ALR Seat Belt.... 201Infant And Child Restraints....................... 192Locating The LATCH Anchorages.............. 199Lower Anchors And Tethers For Children.. 195Older Children And Child Restraints......... 193Seating Positions...................................... 195Clean Air Gasoline......................................... 454CleaningWheels..................................................... 442Climate Control................................................ 57Automatic.................................................... 61Manual........................................................ 57Cold Weather Operation............................... 217Compact Spare Tire...................................... 441Contract, Service.......................................... 549Cooling Pressure Cap (Radiator Cap)............ 419
Cooling System............................................. 417Adding Coolant (Antifreeze)...................... 418Coolant Level................................... 418, 420Cooling Capacity.............................. 459, 460Disposal Of Used Coolant......................... 420Drain, Flush, And Refill............................. 418Inspection................................................. 420Points To Remember................................ 420Pressure Cap............................................ 419Radiator Cap............................................. 419Selection Of Coolant (Antifreeze).... 418, 459, 461, 464Corrosion Protection..................................... 447Cruise Control (Speed Control)............. 280, 282Cruise Light................................................... 141Cupholders.......................................................86Customer Assistance.................................... 548Cybersecurity................................................ 467
D
Daytime Running Lights...................................49Dealer Service............................................... 401Defroster, Rear Window...................................57Defroster, Windshield............................ 57, 210Delay (Intermittent) Wipers..............................55Diagnostic System, Onboard......................... 142Diesel Exhaust Brake.................................... 232Diesel Fuel.................................................... 456Diesel Fuel Requirements............................. 456
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554 Diesel Fuel System, Re-Priming
..................... 412Differential, Limited Slip................................ 270Disabled Vehicle Towing................................ 381Disposal Antifreeze (Engine Coolant)....................... 420Do Not Disturb............................................... 545Door Ajar........................................................ 133Door Ajar Light............................................... 133Door LocksAutomatic.................................................... 30Doors............................................................... 26Draining Fuel/Water Separator Filter............ 409Driver’s Seat Back Tilt..................................... 33DrivingOff-Pavement............................................ 261Off-Road.................................................... 261Through Flowing, Rising, Or Shallow Standing Water..................................... 343Dual Rear Wheels................................ 445, 452
E
Electric Brake Control System....................... 145Anti-Lock Brake System............................. 144Electronic Roll Mitigation................. 149, 153Electrical Power Outlets................................... 86Electronic Range Select (ERS)............. 238, 243Electronic Stability Control (ESC)...................146Electronic Throttle Control Warning Light...... 132Electronically Shifted Transfer Case.... 246, 250Emergency Braking........................................ 231
Emergency, In Case OfFreeing Vehicle When Stuck..................... 380Hazard Warning Flasher........................... 346Jump Starting........................................... 375Emission Control System Maintenance........ 143Engine......................................... 396, 397, 398Air Cleaner................................................ 403Block Heater.................................... 220, 229Break-In Recommendations..................... 230Compartment.................................. 397, 398Compartment Identification...................... 396Coolant (Antifreeze)......................... 461, 464Exhaust Gas Caution....................... 209, 456Fails To Start............................................ 216Flooded, Starting...................................... 216Fuel Requirements.......................... 454, 459Identifcation.................................... 397, 398Idling........................................................ 226Jump Starting........................................... 375Oil..................................401, 459, 461, 464Oil Filler Cap.................................... 396, 402Oil Filter.................................................... 403Oil Reset................................................... 115Oil Selection.................................... 401, 459Oil Synthetic............................................. 403Overheating.............................................. 379Runaway................................................... 319Starting..................................................... 214Engine Oil Viscosity....................................... 402
Enhanced Accident Response Feature...189, 384

Entry System, Illuminated................................54Ethanol.......................................................... 454Exhaust Brake............................................... 232Exhaust Gas Cautions.......................... 209, 456Exhaust System..........................209, 416, 425Exterior Lighting...............................................48Exterior Lights........................................ 48, 212
F
FiltersAir Cleaner
................................................ 403Air Conditioning................................. 69, 406Engine Fuel............................................... 409Engine Oil............................... 403, 461, 464Engine Oil Disposal................................... 403FlashersTurn Signals.............................. 51, 141, 212Flash-To-Pass...................................................50Flat Tire Stowage.......................................... 372Fluid Capacities................................... 459, 460Fluid Leaks.................................................... 212Fluid Level ChecksBrake........................................................ 421Fluid, Brake................................................... 463Fluids And Lubricants........................... 461, 464Fog Lights.............................................. 51, 355Fold Flat Load Floor.........................................84Fold-Flat Seats.................................................33Forward Collision Warning............................ 160Four Wheel Drive........................................... 246

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558 Power Seats Down
........................................................... 35Forward....................................................... 35Rearward..................................................... 35Recline........................................................ 35Tilt............................................................... 35Up................................................................ 35Power Steering Fluid...................................... 463Pregnant Women And Seat Belts...................180PretensionersSeat Belts.................................................. 180
R
Radial Ply Tires.............................................. 437Radiator Cap (Coolant Pressure Cap).. 418, 419Radio Operation............................................ 540Rain Sensitive Wiper System........................... 56Ramp Travel Index......................................... 261Rear Axle (Differential)................................... 424Rear Camera................................................. 312Rear Cargo Area Utility Rails............................ 96Rear Cross Path............................................. 156Rear ParkSense System...................... 296, 301Rear Window, Sliding....................................... 71Reclining Rear Seats....................................... 34Recreational Towing...................................... 339Shifting Into Transfer Case Neutral (N)..... 341Shifting Out Of Transfer Case Neutral (N).. 342Reformulated Gasoline.................................. 454Refrigerant.................................................... 406
Release, Hood................................................. 74Release, Tailgate............................................. 74Reminder, Seat Belt...................................... 173Remote Keyless Entry...................................... 14Panic Alarm................................................. 15Programming Additional Key Fobs........ 16, 24Remote Start (Diesel)...................................... 21Remote Start (Gasoline).................................. 19Remote StartingExit Remote Start Mode.............................. 20Uconnect Customer Programmable Features............................. 478, 497, 516Uconnect Settings.................. 478, 497, 516Replacement Bulbs...................................... 351Replacement Keys........................................... 24Replacement Tires........................................ 439Reporting Safety Defects.............................. 550Resetting Perform Service Indicator............. 390Restraints, Child........................................... 191Restraints, Head.............................................. 38Rotation, Tires.............................................. 444
S
Safety Checks Inside Vehicle........................ 210Safety Checks Outside Vehicle..................... 212Safety Defects, Reporting............................. 550Safety Information, Tire................................ 429Safety Tips.................................................... 209Safety, Exhaust Gas...................................... 209Schedule, Maintenance................................ 385
Seat Belt Reminder....................................... 130Seat Belts............................................ 173, 210Adjustable Shoulder Belt.......................... 177Adjustable Upper Shoulder Anchorage..... 177Adjustable Upper Shoulder Belt Anchorage............................................ 177Automatic Locking Retractor (ALR)........... 180Child Restraints........................................ 191Energy Management Feature................... 180Extender................................................... 179Front Seat........................................ 173, 176Inspection................................................. 210Lap/Shoulder Belt Operation.................... 176Lap/Shoulder Belt Untwisting................... 177Operating Instructions.............................. 176Pregnant Women...................................... 180Pretensioners........................................... 180Reminder.................................................. 173Seat Belt Extender.................................... 179Seat Belt Pretensioner.............................. 180Seat Belt Reminder.................................. 173Untwisting Procedure................................ 177Seat Belts Maintenance................................ 450Seats.................................................. 33, 34, 35Adjustment...........................................33, 35Easy Entry....................................................36Folding Floor................................................84Head Restraints...........................................38

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559
Memory
....................................................... 31Power.......................................................... 35Rear Folding................................................ 33Reclining Rear............................................. 34Tilting.......................................................... 33Security Alarm........................................ 25, 132Selection Of Coolant (Antifreeze)......... 461, 464Sentry Key Key Programming........................................ 24Sentry Key (Immobilizer).................................. 23Sentry Key Replacement................................. 24Service Assistance......................................... 548Service Contract............................................ 549Service Manuals............................................ 551Shift Lever Override....................................... 377Shifting.......................................................... 233Automatic Transmission.................. 235, 239Transfer Case............................................ 255Transfer Case, Shifting Into Transfer Case Neutral (N)................................... 341Transfer Case, Shifting Out Of Transfer Case Neutral (N)................................... 342Side Steps, Power............................................ 27Signals, Turn..................................51, 141, 212Siri................................................................. 545Sliding Rear Window, Power............................ 71Snow Chains (Tire Chains)............................. 443Snow Plow..................................................... 336Snow Tires..................................................... 440Spare Tires.......................................... 441, 442
Spark Plugs................................................... 461Speed ControlAccel/Decel.............................................. 281Cancel...................................................... 281Resume.................................................... 281Speed Control (Cruise Control)............ 280, 282Stabilizer/Sway Bar System.......................... 260Starting....................................... 213, 214, 217Automatic Transmission.................. 213, 217Button......................................................... 17Cold Weather............................................ 217Engine Block Heater........................ 220, 229Engine Fails To Start................................. 216Starting And Operating.................................. 214Starting Procedures............................. 214, 217Starting Procedures (Diesel Engines)........... 217Starting Procedures (Gas Engines)............... 213SteeringTilt Column.................................................. 41Wheel, Heated............................................. 41Wheel, Tilt.................................................... 41Steering Wheel Audio Controls..................... 537Steering Wheel Mounted Sound System
Controls........................................................ 537Steps, Power Side............................................ 27Storage............................................................ 81Storage Compartment, Center Seat................. 81Storage, Vehicle......................................68, 447Storing Your Vehicle...................................... 447Sun Roof................................................... 72, 73
Sunglasses Storage.........................................90Sunshade Operation........................................73Sway Control, Trailer..................................... 153Synthetic Engine Oil...................................... 403
T
Tailgate............................................................98Tailgate, Electronic Lowering...........................74Telescoping Steering Column...........................41Temperature Control, Automatic (ATC).............67TiltDown...........................................................35Up................................................................35Tilt Steering Column.........................................41Tip Start............................................... 213, 218Tire And Loading Information Placard........... 433Tire Markings................................................ 429Tire Safety Information.................................. 429Tires.................................. 212, 435, 441, 446Aging (Life Of Tires)................................... 439Air Pressure.............................................. 435Chains...................................................... 443Compact Spare......................................... 441Dual................................................. 445, 452General Information........................ 435, 441High Speed............................................... 437
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