For the 2015 Ram 3500 with the 6.7L 6-cylinder diesel engine (Engine Code [L] ETK L), the oil capacity is 12 quarts with a filter change. The recommended viscosity is 5W-40 for temperatures below -18°C and 15W-40 for temperatures above -18°C. AMSOIL recommends using Signature Series 5W-40 Max-Duty Diesel Oil for superior protection.
AMSOIL product recommendations
The following AMSOIL products are specifically listed for your 2015 Ram 3500 6.7L Diesel engine and filtration needs.
Engine Oil Options
| Product Name | Viscosity | Part Code |
|---|---|---|
| AMSOIL Signature Series Max-Duty Diesel Oil | 5W-40 | DEOQT-EA |
| AMSOIL Heavy-Duty 100% Synthetic Diesel Oil | 5W-40 | ADOQT-EA |
Oil Filter Options
| Product Name | Part Code |
|---|---|
| AMSOIL Oil Filter | EAO80-EA |
| WIX XP Oil Filter | 57620XP-EA |
| WIX Oil Filter | 57620-EA |
Air Filter & Coolant
| Product Name | Part Code |
|---|---|
| WIX Air Filter | 46930-EA |
| Donaldson P-Series Heavy Duty Air Filter | P616743-EA |
| AMSOIL Passenger Car & Light Truck Antifreeze/Coolant | ANTPC1G-EA |
Quick Answer: What oil does a 2015 Ram 3500 6.7L Diesel take?
Engine Oil Specifications & Details
Proper lubrication is vital for the 6.7L diesel engine to manage thermal and mechanical stress. Always verify your specific requirements against the owner’s manual.
Oil Viscosity & Capacity
| Parameter | Specification |
|---|---|
| Capacity (with filter) | 12 quarts |
| Viscosity (Above -18°C) | 15W-40 |
| Viscosity (Below -18°C) | 5W-40 |
Note: Failure to use SAE 5W-40 synthetic engine oil in ambient temperatures below 0 F (-18 C) could result in severe engine damage.
Service Specifications
- Oil Specification: The AMSOIL lookup note references API CJ/CK-4 and Cummins CES 20081 standards.
- Requirement: Low ash diesel engine oil is required.
- Drain Plug Torque: 37 ft/lbs.
Maintenance Tip: After filling, start the engine and idle for several minutes. Check for leaks. Stop the engine, wait 30 minutes to allow the oil to drain back into the pan, and check the level again.
Common diesel oil-related concerns and how AMSOIL products may help
Diesel engines face unique challenges such as soot loading and extreme thermal stress. The following table outlines how specific lubricants can support engine longevity.
| Concern | Why it matters | AMSOIL Product | How it may help | Limitation |
|---|---|---|---|---|
| Extreme Temperatures | Affects viscosity and cold starts. | DEOQT-EA | Excels in extreme temperatures. | Must match ambient temp requirements. |
| Engine Wear | High pressure/heat causes friction. | DEOQT-EA | Delivers up to 6X more wear protection. | Requires proper service intervals. |
| Soot & Contaminants | Can degrade oil quality. | EAO80-EA | 99% filtering efficiency at 20 microns. | Filter must be replaced regularly. |
Diesel maintenance notes for this vehicle
Based on the technical data provided, owners of the 6.7L diesel should prioritize several key areas:
- Filtration: Use high-quality synthetic oils and filters to manage soot and heat.
- Air Intake: Regularly inspect air filters to prevent dust ingestion in the turbocharger system.
- Cooling System: Maintain thermal stability through consistent coolant service, especially during heavy towing.
- Fuel Systems: Protect high-pressure injection systems with timely fuel filter replacement.
Common maintenance concerns for this vehicle
Based on NHTSA consumer reports and research, owners of the 2015 Ram 3500 should be aware of the following areas:
- Turbocharger/Engine: Some owners have reported issues regarding turbocharger actuator failures leading to “Limp Mode.”
- Steering Components: There are reports concerning steering assistance and potential issues with high-pressure steering lines.
- Braking Systems: Complaints have been noted regarding trailer braking system voltage levels.
Note: NHTSA complaints are owner reports and should not be treated as verified defects.
Recall, TSB, and manufacturer communication notes
Official NHTSA recall research for the 2015 Ram 3500 Pickup identified several campaigns:
- Steering Linkage: A recall (Campaign 19V021000) was issued regarding the outboard steering linkage jam nut potentially loosening, which could lead to a loss of steering control.
- Aftermarket Suspension: A recall (Campaign 18E096000) addressed certain aftermarket suspension kits that could weaken the connection between the drag link and knuckle.
- Tailgate Latch: A recall (Campaign 19V347000) involved the tailgate actuator limiter tab potentially fracturing, which could cause the tailgate to unlatch while driving.
Important: Always verify your specific vehicle’s open recalls by checking your VIN through official manufacturer or NHTSA channels.
About this vehicle
The 2015 Ram 3500 is a heavy-duty pickup truck designed for high-capacity tasks, including heavy towing and hauling. It belongs to the Ram Heavy Duty lineup, positioned above the light-duty Ram 1500. This model is commonly associated with commercial applications and demanding work environments.
The heart of this vehicle’s capability is the 6.7L diesel turbo engine. Because diesel engines operate under significant thermal and mechanical stress during heavy-duty use, consistent maintenance of cooling systems and filtration is critical for longevity. Owners often focus on maintaining high-pressure fuel systems, turbocharger integrity, and emissions components to ensure reliable performance.
While this model belongs to a specific generation of the Ram HD series, it remains a staple in the heavy-duty market. Maintenance should always be performed according to manufacturer specifications to protect the complex diesel powertrain and its associated components.
Common questions about this vehicle’s diesel oil and maintenance
How much oil does my 2015 Ram 3500 6.7L take?
The engine requires 12 quarts of oil when performing a service that includes a filter change.
What is the correct oil viscosity for cold weather?
For ambient temperatures below 0 F (-18 C), AMSOIL recommends using a 5W-40 synthetic engine oil to prevent severe engine damage.
Does my Ram 3500 require low ash oil?
Yes, the AMSOIL lookup note specifies that low ash diesel engine oil is required for this application.
Can I use a standard filter instead of an AMSOIL filter?
While other filters like WIX are listed, the EAO80-EA provides 99% filtering efficiency at 20 microns and is designed to reduce engine wear.
What should I check if my truck goes into “Limp Mode”?
Some owner reports suggest checking the turbocharger actuator, but you should have the vehicle scanned by a professional to diagnose the specific cause.
How do I verify if my 2015 Ram has an open recall?
You should contact a Chrysler dealer or visit the NHTSA website and provide your VIN to check for any active recalls, such as those related to steering or tailgates.
Disclaimer: This information is derived from provided source data. Always consult your vehicle’s owner manual and professional mechanics for specific maintenance requirements.