AMSOIL product recommendations
Based on the vehicle specifications, AMSOIL provides the following high-performance lubrication and filtration options:
Engine Oil & Filter
| Product Name | Code |
|---|---|
| AMSOIL 5W-40 FS 100% Synthetic European Motor Oil | EFMQT-EA |
| WIX Oil Filter | WL10614-EA |
Air Filtration
| Product Name | Code |
|---|---|
| WIX Air Filter | 42725-EA |
Coolant & Antifreeze
| Product Name | Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
Transmission Fluid
| Product Name | Code |
|---|---|
| AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF | ATLPK-EA |
| AMSOIL OE Fuel-Efficient 100% Synthetic ATF | OTLQT-EA |
Transfer Case Lubricant
| Product Name | Code |
|---|---|
| AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF | ATFPK-EA |
Quick Answer: What oil does a 2021 Ram 1500 3.0L Diesel take?
For the 2021 Ram 1500 with the 3.0L 6-cylinder Engine Code [M] Diesel Turbo, the required oil viscosity is 5W-40. The engine oil capacity is 8.5 quarts (including the filter). AMSOIL recommends using AMSOIL 5W-40 FS 100% Synthetic European Motor Oil (Code: EFMQT-EA) for this application.
Engine Oil Specifications & Details
Proper lubrication is critical for the 3.0L Diesel Turbo engine to ensure longevity and performance.
What oil viscosity does this diesel engine require?
The AMSOIL lookup specifies an oil viscosity of 5W-40 for all temperatures. The oil grade is listed as SEO50.
| Specification | Value |
|---|---|
| Viscosity | 5W-40 (All TEMPS) |
| Oil Grade | SEO50 |
How much oil does it take with a filter change?
The total capacity for the engine is 8.5 quarts when replacing the filter. Always check the oil level after refilling.
| Component | Capacity |
|---|---|
| Engine Oil (with filter) | 8.5 quarts |
What are the engine oil requirements?
The AMSOIL lookup note states that use of a full synthetic motor oil meeting MS-12991 and the API SN engine oil category is required.
| Requirement Type | Specification |
|---|---|
| OEM Specification Reference | MS-12991 |
| API Category | SN |
Oil Drain Plug Torque
When performing an oil change, ensure the drain plug is tightened to the correct specification to prevent leaks or damage.
| Component | Torque Value |
|---|---|
| Oil Drain Plug | 30 ft/lbs |
Transmission & Transfer Case Specifications
This vehicle utilizes the 8HP75 automatic transmission. Proper fluid maintenance is essential for smooth shifting and heat management.
Automatic Transmission Fluid (ATF) Details
For the 8-speed 8HP75 transmission, the total fill capacity is 9 quarts.
| Specification | Value |
|---|---|
| Transmission Model | 8HP75 (SL076) |
| Total Fill Capacity | 9 quarts |
Transfer Case Lubricant
For the BW 48-11 transfer case, specific fill and torque procedures must be followed.
| Component | Specification |
|---|---|
| Capacity (BW 48-11) | 3.6 pints |
| Fill Plug Torque | 18 ft/lbs |
| Drain Plug Torque | 18 ft/lbs |
Note: Fill the transfer case to the bottom edge of the fill plug opening.
Cooling System Specifications
Maintaining correct coolant levels and chemistry is vital for protecting engine metals and gaskets.
| Component | Capacity |
|---|---|
| Coolant Capacity | 11.6 quarts |
The AMSOIL lookup lists two options: a 50/50 pre-mix (ANTPC1G-EA) and a concentrated version that requires mixing with distilled or high-quality water (ANT1G-EA).
Diesel maintenance notes for this vehicle
- Oil Level Verification: After refilling the engine oil, always check the level using the dipstick to ensure accuracy.
- Filter Importance: Using premium media filters like WIX can help reduce engine wear and offer OEM drain intervals.
- Diesel Sensitivity: Diesel engines are highly sensitive to oil quality and fuel cleanliness; maintaining high-quality filtration is critical for the turbocharger and fuel injection system.
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 |
|---|---|---|---|---|
| Turbocharger Protection | High heat and speed can cause oil breakdown. | EFMQT-EA | Designed for unique demands of diesel vehicles. | Does not repair existing damage. |
| Transmission Heat | Heavy towing increases fluid temperature. | ATLPK-EA | Withstands rigors of heavy towing and elevated temperatures. | Requires proper fill levels. |
| Engine Wear | Soot and friction can degrade components. | WL10614-EA | Premium media helps reduce engine wear. | Must be changed at correct intervals. |
Common maintenance concerns for this vehicle
Based on owner reports and general diesel operation, owners should monitor the following:
- Exhaust Aftertreatment: Monitor DEF levels and exhaust system health to ensure proper operation.
- Fuel Quality: Diesel engines require clean fuel; consider high-quality fuel filtration.
- Cooling System Integrity: Check for leaks in gaskets and hoses, especially when using heavy-duty cooling solutions.
Recall, TSB, and manufacturer communication notes
NHTSA research indicates the following recalls for the 2021 Ram 1500:
- Rearview Camera: Certain vehicles with a Trailer Reverse Steering Control Module (TRSCM) may experience rearview image display failures. Dealers can update the TRSCM software.
- Spare Tire: Some vehicles may have been installed with an incorrect-size spare tire that does not match the tire placard information.
Note: These are summaries of official records. Owners should always verify open recalls by VIN through a certified dealer or the NHTSA website.
About this vehicle
The 2021 Ram 1500 is part of the fifth generation (DT) of the Ram pickup series, manufactured by Stellantis North America. This specific model features the 3.0L 6-cylinder diesel engine (Engine Code [M]), a specialized powertrain designed to provide enhanced torque and improved fuel efficiency compared to standard gasoline engines.
Because this vehicle utilizes a compression-ignition diesel engine rather than a traditional spark-ignition gasoline engine, maintenance requirements differ significantly from the V6 or V8 gasoline models. This diesel variant is typically utilized for tasks requiring higher towing capacities or sustained highway cruising with heavy loads. Owners should focus on diesel-specific service intervals, including specialized fuel filtration and monitoring exhaust aftertreatment systems.
As part of the fifth-generation platform, this truck is built for versatility, but its diesel components—such as the turbocharger and high-pressure fuel injection system—require strict adherence to manufacturer-approved lubrication and filtration standards to ensure long-term reliability. Always prioritize specifications listed in your VIN-specific service guide.
Common questions about this vehicle’s diesel oil and maintenance
What is the correct oil viscosity for my 2021 Ram 3.0L Diesel?
The AMSOIL lookup specifies a viscosity of 5W-40 (All TEMPS) for this engine.
How much oil do I need for an oil change?
You will need 8.5 quarts of oil when performing a service that includes the oil filter replacement.
Can I use any synthetic oil in my Ram 1500 Diesel?
The AMSOIL lookup note specifies that you should use a full synthetic motor oil meeting MS-12991 and the API SN engine oil category.
What is the torque spec for the oil drain plug?
The oil drain plug should be torqued to 30 ft/lbs.
Does my transmission need special fluid?
Yes, the 8-speed 8HP75 transmission requires specific fluid; AMSOIL lists ATLPK-EA and OTLQT-EA for this application.
How often should I change my coolant?
While specific intervals vary, AMSOIL offers products like ANTPC1G-EA that provide protection for up to 150,000 miles or 5 years.
Disclaimer: This information is derived from provided source data. Always verify maintenance specifications with your vehicle’s owner manual or a certified service professional before performing any service.