For the 2018 Ram ProMaster 2500 equipped with the 3.0L 4-cylinder Engine Code [D] EXG D Diesel Turbo, the engine oil capacity is 9.5 quarts (with filter). The recommended viscosity is 5W-30. AMSOIL recommends AMSOIL 5W-30 100% Synthetic Diesel Oil (DP530QT-EA) for outstanding protection in this diesel application.
What oil does a 2018 Ram ProMaster 2500 3.0L Diesel take?
The 2018 Ram ProMaster 2500 with the 3.0L 4-cylinder diesel engine requires an oil viscosity of 5W-30 for all temperature ranges. The AMSOIL lookup identifies the SEO54 oil grade for this application. For optimal protection, AMSOIL recommends their 100% Synthetic Diesel Oil.
AMSOIL product recommendations
Based on the AMSOIL lookup data, here are the recommended products for your 2018 Ram ProMaster 2500 3.0L Diesel Turbo.
Engine Oil & Filters
| Product Name | Part Code |
|---|---|
| AMSOIL 5W-30 100% Synthetic Diesel Oil | DP530QT-EA |
Note: No specific oil filter recommendations are available from the source data.
Coolant & Antifreeze
| Product Name | Part Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
Transmission Fluids
| Product Name | Part Code |
|---|---|
| AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF | ATFPK-EA |
| AMSOIL OE Multi-Vehicle 100% Synthetic ATF | OTFQT-EA |
| AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube | MTGPK-EA |
Brake & Steering Fluids
| Product Name | Part Code |
|---|---|
| AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid | BFLVCN-EA |
| AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid | PSFCN-EA |
Diesel Fuel Additives
| Product Name | Part Code |
|---|---|
| AMSOIL Diesel Injector Clean Fuel Additive | adfpcn-ea |
| AMSOIL Diesel Cetane Boost Fuel Additive | acbcn-ea |
| AMSOIL Diesel Injector Clean + Cetane Boost Fuel Additive | adscn-ea |
Engine Oil Specifications
| Viscosity | AMSOIL Lookup Oil Grade |
|---|---|
| 5W-30 (All TEMPS) | SEO54 |
Engine Oil Capacity
| Description | Capacity |
|---|---|
| Oil Capacity with filter | 9.5 quarts |
Maintenance Note: After refilling, always check the oil level. When performing an oil change, use only an OE drain plug and install a new washer on the drain bolt. The torque specification for the oil drain plug is 33 ft/lbs.
Automatic and Manual Transmission Specifications
The transmission requirements vary depending on whether your ProMaster 2500 is equipped with an automatic or manual gearbox. Ensure you select the correct fluid to prevent shudder or gear wear.
Automatic Transmission (62TE)
| Fill Type | Capacity |
|---|---|
| Initial Fill | 5.5 quarts |
| Total Fill | 9 quarts |
Manual Transmission (M40MTA)
The AMSOIL lookup notes this manual transmission requires a GL-4 specification with 75W-85 viscosity for all temperatures. The AMSOIL 75W-90 product is also listed.
| Component | Torque Spec |
|---|---|
| Manual Transmission Fill Plug | 37 ft/lbs |
| Manual Transmission Drain Plug | 37 ft/lbs |
Capacity: The transmission portion requires 6.1 pints.
Coolant and Brake Fluid Requirements
Maintaining the cooling system and braking system is vital for commercial vehicle longevity. Proper coolant prevents corrosion in all cooling system metals, gaskets, and hoses.
Coolant Specifications
| Capacity | Formulation Type |
|---|---|
| 12.7 quarts | Ethylene glycol 50/50 pre-mix (for ANTPC1G-EA) |
The AMSOIL lookup lists two options: a pre-mixed OAT formulation and a concentrated propylene glycol version that requires mixing with distilled or high-quality water.
Brake Fluid
The vehicle manufacturer notes to use MOPAR DOT 4 brake fluid. For this application, the AMSOIL lookup lists AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid (BFLVCN-EA).
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 |
|---|---|---|---|---|
| Diesel Injector Deposits | Dirty injectors can reduce fuel efficiency and power. | Diesel Injector Clean | Cleans dirty injectors and lubricates pumps/injectors. | Diagnosis or repair may be required for mechanical failure. |
| Low Cetane Levels | Affects combustion quality, idle smoothness, and startability. | Diesel Cetane Boost | Increases cetane up to 8 points and improves startability. | Diagnosis or repair may be required for mechanical failure. |
| Engine Wear | High-duty diesel cycles cause significant component wear. | 5W-30 Synthetic Diesel Oil | Delivers up to 6X more wear protection than leading industry standards. | Diagnosis or repair may be required for mechanical failure. |
Diesel maintenance notes for this vehicle
- Turbocharger Health: As a turbocharged diesel, maintaining proper oil viscosity and cleanliness is critical for turbocharger longevity.
- Fuel Filtration: Diesel-specific fuel filtration is a key area of focus for high-duty cycle commercial use.
- Cooling Integrity: Ensure the cooling system is maintained to protect all metals, gaskets, and hoses from corrosion.
Common maintenance concerns for this vehicle
Owners of the 2018 Ram ProMaster 2500 diesel often focus on high-duty cycle components. Practical checks should include monitoring turbocharger health, ensuring cooling system integrity, and verifying fuel filtration requirements to support commercial utility applications.
Recall, TSB, and manufacturer communication notes
Official NHTSA recall research for the 2018 Ram ProMaster 2500 returned no recall records. Additionally, no complaint records were found via the NHTSA complaints API. However, this does not prove the vehicle has no issues; it only means no records were returned by this specific search. Owners should always verify open recalls by VIN through an official dealership or the manufacturer.
About this vehicle
The 2018 Ram ProMaster 2500 is a commercial-focused vehicle within the Stellantis (formerly FCA) portfolio. While the ‘Ram’ brand is widely recognized for its heavy-duty pickup trucks, the ProMaster line represents the brand’s expansion into the light commercial van segment. This specific model is part of a lineage that shares significant engineering DNA with European commercial platforms; specifically, the ProMaster is a North American version of the Fiat Ducato, a vehicle developed through the Sevel joint venture between FCA and PSA Group.
Regarding the powertrain, this vehicle features a 3.0L 4-cylinder diesel engine. The presence of a turbocharger suggests a focus on providing necessary low-end torque for hauling and commercial utility. Owners of these diesel variants typically utilize them for cargo transport, trades, or mobile service applications where fuel efficiency and payload capacity are critical. Because this engine is part of a global platform used across various brands (including Citroën and Peugeot in different markets), the broader engine family background and specific technical specifications should be verified against official service manuals to ensure compatibility with aftermarket parts.
Common questions about this vehicle’s diesel oil and maintenance
How much oil does my 2018 Ram ProMaster 2500 3.0L Diesel take?
It takes 9.5 quarts of oil when performing a change with the filter.
What is the correct oil viscosity for this engine?
The recommended viscosity is 5W-30 for all temperature ranges, as noted in the AMSOIL lookup.
What torque should I use for the oil drain plug?
The oil drain plug should be torqued to 33 ft/lbs. Always use a new washer and an OE drain plug.
Can I use any antifreeze in my ProMaster diesel?
The AMSOIL lookup lists specific options like the Passenger Car & Light Truck Antifreeze or Propylene Glycol versions. Always ensure compatibility with your cooling system metals and gaskets.
Does this vehicle require special transmission fluid?
Yes, requirements differ by transmission type. The 6-speed 62TE automatic requires specific ATF, while the manual M40MTA requires a GL-4 specification fluid (75W-85 or AMSOIL 75W-90).
How can I improve diesel fuel performance?
Additives like Diesel Injector Clean or Cetane Boost may help clean injectors and improve combustion quality.
Disclaimer: Not all information provided is from the manufacturer. Always consult your vehicle’s owner manual or a certified service technician to prevent engine damage.