2023 Ram 1500 3.0L Diesel Maintenance Guide: Oil, Filters & Fluids

AMSOIL diesel oil guide for 2023 Ram 1500 Pickup
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines

For the 2023 Ram 1500 Pickup equipped with the 3.0L 6-cylinder Engine Code [M] EXH M Diesel Turbo, the engine oil capacity is 8.5 quarts (with filter). The recommended viscosity is 5W-40 for all temperatures. AMSOIL recommends using AMSOIL 5W-40 FS 100% Synthetic European Motor Oil (EFMQT-EA) paired with a WIX Oil Filter (WL10614-EA).

What oil does a 2023 Ram 1500 3.0L Diesel take?

The 2023 Ram 1500 with the 3.0L 6-cylinder diesel engine requires a full synthetic motor oil that meets the MS-12991 specification and the API SP engine oil category. The AMSOIL lookup specifies an oil viscosity of 5W-40 for all temperatures.

AMSOIL product recommendations

Based on the AMSOIL lookup for your 2023 Ram 1500 3.0L Diesel, here are the recommended fluids and filters to maintain engine health and performance.

Engine Oil & Filter

Product Name Code
AMSOIL 5W-40 FS 100% Synthetic European Motor Oil EFMQT-EA
WIX Oil Filter WL10614-EA

Automatic Transmission Fluid

Product Name Code
AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF ATLPK-EA
AMSOIL OE Fuel-Efficient 100% Synthetic ATF OTLQT-EA

Coolant & Other Fluids

Product Name Code
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant ANTPC1G-EA
AMSOIL Propylene Glycol Antifreeze and Engine Coolant ANT1G-EA

Transfer Case Lubricant

Product Name Code
AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF ATFPK-EA
AMSOIL OE Multi-Vehicle 100% Synthetic ATF OTFQT-EA

Engine Oil Specifications

Attribute Details
AMSOIL Lookup Oil Grade SEO50
Viscosity 5W-40 (All TEMPS)
Required Specification MS-12991 and API SP category

How much oil does it take with a filter change?

The total capacity for the 3.0L diesel engine is 8.5 quarts when performing a service that includes replacing the oil filter. It is important to check the oil level after refilling.

Component Capacity/Torque
Oil Capacity (with filter) 8.5 quarts
Oil Drain Plug Torque 30 ft/lbs

Automatic Transmission Maintenance

For vehicles equipped with the 8-speed 8HP75 automatic transmission, specific fluid capacities must be observed to ensure proper shifting and protection.

Transmission Type Total Fill Capacity
8-speed 8HP75 9 quarts

The AMSOIL lookup notes that the transmission is identified as 8HP75….SL076.

Transfer Case Lubricant Specifications

Maintenance for the transfer case depends on the specific model found in your vehicle. Ensure you fill to the bottom edge of the fill plug opening.

BW 48-11 Model

Capacity 3.6 pints
Fill Plug Torque 18 ft/lbs
Drain Plug Torque 18 ft/lbs

BW 48-13 Model

Capacity 3.8 pints
Fill Plug Torque 18 ft/lbs
Drain Plug Torque 18 ft/lbs

BW 48-12 Model

Capacity 2.7 pints
Drain Plug Torque 15 ft/lbs

Coolant Specifications

The cooling system requires a capacity of 11.6 quarts. AMSOIL offers both pre-mix and concentrated options for this application.

Product Type Formulation Details
Pre-mix Ethylene glycol 50/50 formulation
Concentrated Requires mixing with distilled or high-quality water

Diesel maintenance notes for this vehicle

  • Oil Level Verification: Always check the oil level after refilling following an oil change.
  • Emissions Systems: Use of full synthetic motor oil meeting MS-12991 and API SP is required to ensure protection without harming emissions systems.
  • Transfer Case Filling: When servicing the transfer case, fill until the fluid reaches the bottom edge of the fill plug opening.

Common diesel oil-related concerns and how AMSOIL products may help

Concern Why it matters AMSOIL product from this lookup How it may help Important limitation
Heavy Towing/High Heat Increases thermal stress on transmission and engine. ATLPK-EA Withstands rigors of heavy towing and elevated temperatures. Diagnosis may be required for mechanical failure.
Cold Weather Starts Thick fluids can hinder lubrication during startup. EFMQT-EA Provides 5W-40 viscosity for all temperatures. Does not repair worn components.
Engine Wear Diesel engines face high pressure and soot loading. EFMQT-EA Designed for unique demands of diesel vehicles. Requires regular maintenance intervals.

Common maintenance concerns for this vehicle

Based on technical research, owners of the 3.0L diesel variant should consider the following:

  • Fuel System Integrity: Diesel engines are highly sensitive to fuel quality and filtration.
  • Turbocharger & Exhaust: Routine inspections of the turbocharger system and exhaust components are critical for long-term reliability due to different thermal profiles.
  • Fluid Management: Maintaining correct levels of specialized fluids is essential for light-to-medium duty towing applications.

Recall, TSB, and manufacturer communication notes

NHTSA research indicates the following recalls for the 2023 Ram 1500:

  • Fuel System (Diesel): A recall exists for certain 2022-2023 Ram 1500 vehicles with the 3.0L diesel engine regarding the high pressure fuel pump (HPFP) which may fail, potentially causing an engine stall.
  • Rear Visibility: Recalls have been noted regarding the trailer reverse steering control module and radio software that may prevent rearview images from displaying.

Note: Always verify open recalls by using your specific VIN through official Stellantis or NHTSA channels.

About this vehicle

The 2023 Ram 1500 is part of the fifth generation (DT) of the Ram pickup lineup, manufactured by Stellantis North America, primarily at the Sterling Heights Assembly plant in Michigan. While many Ram 1500 models utilize gasoline engines, this specific configuration features the 3.0L 6-cylinder diesel engine.

It is important for owners to distinguish this light-duty diesel from the heavy-duty Cummins-branded engines found in the 2500 and 3500 series. The 3.0L diesel is designed for a blend of daily commuting and light-to-medium duty towing or hauling, offering improved fuel efficiency compared to standard V8 gasoline configurations.

Because diesel engines operate under different thermal and pressure profiles than gasoline counterparts, maintenance schedules—specifically regarding oil change intervals and filtration—often differ significantly. Owners should consult the official Stellantis service manual to confirm exact capacities for all specialized lubricants before performing DIY maintenance.

Common questions about this vehicle’s diesel oil and maintenance

What is the engine oil capacity for my 2023 Ram 1500 3.0L Diesel?

The capacity is 8.5 quarts when replacing the filter. Always check the level after refilling.

What viscosity should I use for the diesel engine?

The AMSOIL lookup recommends a 5W-40 viscosity for all temperatures.

Does my Ram 1500 require a specific oil specification?

Yes, the vehicle requires full synthetic motor oil meeting MS-12991 and the API SP engine oil category.

What is the torque spec for the oil drain plug?

The oil drain plug should be torqued to 30 ft/lbs.

Can I use any antifreeze in my cooling system?

The AMSOIL lookup lists options like ANTPC1G-EA (pre-mix) or ANT1G-EA (concentrate). Always verify compatibility with your specific cooling system metals and gaskets.

How do I service the transfer case?

Fill the transfer case to the bottom edge of the fill plug opening. Torque for the BW 48-11 model is 18 ft/lbs for both fill and drain plugs.

Disclaimer: While this information is derived from AMSOIL and NHTSA data, always verify all maintenance procedures, capacities, and specifications using your official vehicle owner’s manual or a VIN-specific lookup tool before performing service.

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