specifications RAM CHASSIS CAB 2023 Owner's Manual

420TECHNICAL SPECIFICATIONS
Fuel Selection
Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel
this vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low
Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.

For most year-round service, Number 2 diesel fuel meeting ASTM specification D-975 Grade S15 will
provide good performance.
If climatized or diesel Number 1 ULSD fuel is not available, and you are operating below (20°F/-6°C), in
sustained arctic conditions, Mopar® Premium Diesel Fuel Treatment (or equivalent) is recommended to
avoid gelling.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting ASTM specification D-975.

Pickup models, and Chassis Cab models configured with optional B20 capability, are additionally
compatible with 20% biodiesel meeting ASTM specification D-7467.
Diesel Exhaust Fluid Mopar® Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API Certified to the ISO
22241 standard. Use of fluids not API Certified to ISO 22241 may result in system damage. You can receive
assistance in locating DEF in the United States by calling 866-RAM-INFO (866-726-4636). In Canada call
1–800–465–2001 (English) or 1–800–387–9983 (French).
Component
Fluid, Lubricant, or Genuine Part
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 Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Tech -
nology (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
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 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 (anti -
freeze) is not recommended.

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TECHNICAL SPECIFICATIONS421
CHASSIS FLUIDS AND LUBRICANTS
6.4L GASOLINE ENGINE
6.7L DIESEL ENGINE
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – 8-SpeedUse only Mopar® ZF 8 & 9 Speed ATF Automatic Transmission Fluid, or equivalent. Failure to use the
correct fluid may affect the function or performance of your transmission.
Automatic Transmission – 6-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 using Mopar® Transfer Case Lubricant for Borg Warner 44-44 and 44-45.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
Power Steering Reservoir We recommend using Mopar® Power Steering Fluid +4, Mopar® ATF+4 Automatic Transmission Fluid.
Component Fluid, Lubricant, or Genuine Part
Automatic TransmissionOnly 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 using Mopar® BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
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431

Enhanced Accident Response Feature
.. 302, 341
Ethanol.......................................................... 414Exhaust Brake............................................... 129Exhaust Gas Cautions.................................... 324Exhaust System.......................... 324, 367, 375Exterior Lighting............................................... 51Exterior Lights......................................... 51, 324
F
Family Alerts.................................................. 258Filters Air Cleaner................................................. 355Air Conditioning.................................. 65, 358Engine Fuel..................................... 360, 419Engine Oil........................................ 354, 419Engine Oil Disposal................................... 354FlashersTurn Signals..............................54, 110, 324Flash-To-Pass.................................................. 52Flat Tire Stowage........................................... 332Fluid Capacities............................................. 418Fluid Leaks.................................................... 324Fluid Level ChecksBrake........................................................ 371Power Steering.......................................... 148Fog Lights............................................... 54, 387Fold Flat Load Floor......................................... 68Fold-Flat Seats................................................. 31Forward Collision Warning............................. 278Four Wheel Drive........................................... 140
Four-Way Hazard Flasher.............................. 325Freeing A Stuck Vehicle................................ 338Front Axle (Differential)................................. 374Fuel............................................. 177, 413, 415Adding...................................................... 177Additives................................................... 413Clean Air................................................... 413Diesel.............................................. 177, 415Ethanol..................................................... 414Filler Cap (Gas Cap).................................. 177Filter................................................ 360, 419Gasoline................................................... 413Light......................................................... 107Materials Added....................................... 413Methanol.................................................. 414Octane Rating........................................... 413Requirements.................................. 413, 415Specifications........................................... 416Tank Capacity........................................... 418Fuses............................................................ 377
G
Garage Door Opener (HomeLink®).................. 47Gas Cap (Fuel Filler Cap).............................. 177Gasoline, Clean Air........................................ 413Gasoline, Reformulated................................ 413GaugesVoltage..................................................... 122Gear Ranges................................................. 135Gear Selector Override................................. 336
Glass Cleaning.............................................. 410Glove Compartment Storage............................65Gross Axle Weight Rating.............................. 182Gross Vehicle Weight Rating......................... 181GuideBody Builders...............................................10GVWR............................................................ 180
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 198Hazard Warning Flashers.............................. 325Head Restraints...............................................36Head Rests......................................................36Headlights..................................................... 386Automatic High Beam..................................52Cleaning.................................................... 408High Beam...................................................52Lights On Reminder.....................................54Passing........................................................52Switch..........................................................51Heated Mirrors.................................................46Heated Seats...................................................35Hill Descent Control...................................... 274Hill Descent Control Indicator....................... 274Hill Start Assist.............................................. 276HitchesTrailer Towing........................................... 185
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The driver’s primary responsibility is the safe operation of the vehicle. Driving while distracted can result in loss of vehicle control, resulting in an accident and personal injury. FCA US LLC strongly recommends that the driver use extreme caution when using any device or feature that may take their attention off the road. Use of any electrical devices, such as cellular telephones, computers, portable radios, vehicle navigation or other devices, by the driver while the vehicle is moving is dangerous and could lead to a serious accident. Texting while driving is also dangerous and should never be done while the vehicle is moving. If you find yourself unable to devote your full attention to vehicle operation, pull off the road to a safe location and stop your vehicle. Some states or provinces prohibit the use of cellular telephones or texting while driving. It is always the driver’s responsibility to comply with all local laws.
This Owner’s Manual has been prepared to help you get acquainted with your new Ram brand vehicle and to provide a convenient reference for common questions.
Not all features shown in this manual may apply to your vehicle. For additional information on accessories to help personalize your vehicle, visit mopar.com/om (USA), owners.mopar.ca (Canada) or your local Ram brand dealer.
This Owner’s Manual is intended to familiarize you with the important features of your vehicle. Your most up-to-date Owner’s Manual, Navigation/Uconnect manuals and Warranty Booklet can be found by visiting the website on the back cover.
U.S. Residents: If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the Warranty Booklet by calling 1-866-726-4636 or by contacting your dealer. Replacement kits can be purchased by visiting www.techauthority.com.
Canadian Residents: If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the Warranty Booklet or purchase a replacement kit by calling 1-800-387-1143 or by contacting your dealer.
DRIVING AND ALCOHOL
Drunk driving is one of the most frequent causes of accidents. Your driving ability can be seriously impaired with blood alcohol levels far below the legal minimum. If you are drinking, don’t drive. Ride with a designated non-drinking driver, call a cab, a friend or use public transportation.
WARNING
Driving after drinking can lead to an accident. Your perceptions are less sharp, your reflexes are slower and your judgment is impaired when you have been drinking. Never drink and then drive.
WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway
motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates,
and lead, which are known to the State of California to cause cancer and birth defects or other
reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except
as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently
when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.
This Owner’s Manual illustrates and describes the operation of features and equipment that are either standard or optional on this vehicle. This manual may also include a description of features and equipment that are no longer available or were not ordered on this vehicle. Please disregard any features and equipment described in this manual that are not on this vehicle. FCA US LLC reserves the right to make changes in design and specifications, and/or make additions to or improvements to its products without imposing any obligation upon itself to install them on products previously manufactured.
With respect to any vehicles sold in Canada, the name FCA US LLC shall be deemed to be deleted and the name FCA Canada Inc. used in substitution therefore.
FCA US LLC reserves the right to modify the terms or discontinue the Roadside Assistance Program at any time. The Roadside Assistance Program is subject to restrictions and conditions of use, that are determined solely by FCA US LLC.
ROADSIDE ASSISTANCE 24 HOURS, 7 DAYS A WEEK AT YOUR SERVICE. CALL 1-800-521-2779 OR VISIT CHRYSLER.RSAHELP.COM (USA) CALL 1-800-363-4869 OR VISIT FCA.ROADSIDEAID.COM (CANADA) SERVICES: Flat Tire Service, Out Of Gas/Fuel Delivery, Battery Jump Assistance, Lockout Service and Towing Service
Please see the Customer Assistance chapter in this Owner’s Manual for further information.