What oil does a 2018 Ford F-450 6.7L Diesel take?
The 2018 Ford F-450 with the 6.7L 8-cylinder Engine Code [T] O Diesel Turbo requires an oil capacity of 13 quarts (including filter replacement). Recommended viscosities include 10W-30 for normal usage and 5W-40 for severe operations. For those using biodiesel fuel blends (up to B20), the manufacturer recommends using 5W-40 or 15W-40 oil. AMSOIL recommends the Signature Series Max-Duty Synthetic Diesel Oil for superior protection.
AMSOIL product recommendations
To simplify your maintenance, AMSOIL offers complete oil change kits and individual high-performance fluids specifically selected for this Ford Power Stroke engine.
Engine Oil Recommendations
| Product Name | Viscosity | Part Number |
|---|---|---|
| AMSOIL Signature Series Max-Duty Diesel Oil | 10W-30 | DTTQT-EA |
| AMSOIL Signature Series Max-Duty Diesel Oil | 5W-40 | DEOQT-EA |
| AMSOIL Heavy-Duty Synthetic Diesel Oil | 10W-30 | ADNQT-EA |
| AMSOIL Heavy-Duty Synthetic Diesel Oil | 5W-40 | ADOQT-EA |
Oil Filter Recommendations
| Product Name | Part Number |
|---|---|
| AMSOIL Oil Filter | EAO98-EA |
| WIX XP Oil Filter | 51372XP-EA |
| WIX Oil Filter | 51372-EA |
| WIX Oil Filter | 57151-EA |
Engine Oil Specifications & Details
Proper lubrication is vital for the 6.7L Power Stroke to manage high thermal loads and heavy towing requirements.
Oil Viscosity Guide
| Condition/Temp | Recommended Viscosity |
|---|---|
| All Temperatures | 0W-30, 0W-40 |
| Above -18°C | 10W-30 (Normal) / 5W-40 (Severe) |
| Above -7°C | 15W-40 |
| Above -29°C | 5W-40 |
Note: If biodiesel fuel blends (B20 max) are used, the use of 5W-40 or 15W-40 oil is recommended.
Oil Change Specifications
- Capacity: 13 quarts (with filter). Always check oil level after refill.
- Oil Drain Plug Torque: 19 ft/lbs
- AMSOIL Lookup Oil Grade: SEO84
Common diesel oil-related concerns and how AMSOIL products may help
Diesel engines operating under heavy loads face unique lubrication challenges. The following table outlines how specific AMSOIL products can support engine health.
| Concern | Why it matters | AMSOIL Product | How it may help | Limitation |
|---|---|---|---|---|
| Extreme Pressure/Wear | Heavy towing causes high component stress. | DTTQT-EA | Provides outstanding extreme-pressure protection and 6X more wear protection. | Requires regular service. |
| Contaminant Buildup | Small particles can cause engine wear. | EAO98-EA | Offers 99% efficiency at 20 microns to reduce wear. | Filter must be replaced per interval. |
| Temperature Extremes | Viscosity changes can affect lubrication. | DEOQT-EA | Excels in extreme temperatures and maintains proper viscosity. | Follow manufacturer temperature guidelines. |
Diesel maintenance notes for this vehicle
For the 6.7L Power Stroke, maintaining a rigorous service schedule is critical to managing turbocharging complexities and diesel combustion systems. Owners should focus on monitoring turbocharger health and ensuring cooling systems can handle high thermal loads during heavy work or large-scale towing.
Common maintenance concerns for this vehicle
Based on owner reports, several areas require attention:
- Fuel System Integrity: Some owners have reported issues regarding fuel system components. Ensure all secondary filters and high-pressure pipes are inspected regularly.
- Electrical/Wiring: Monitoring engine compartment wiring is advised to prevent heat-related damage.
- Brake Light Functionality: In certain configurations, brake light behavior may require inspection.
Recall, TSB, and manufacturer communication notes
The following official NHTSA recall information was found for the 2018 Ford F-450. Always verify open recalls by your specific VIN through a Ford dealer or the NHTSA website.
- Engine Block Heater (Campaign 18V894000): Potential for corrosion in the block heater cable’s splice connector, which could lead to a resistive short and fire risk.
- Back-up Camera Displays (Campaign 19V398000): LGE Coachworks displays may revert to factory settings, potentially reversing the camera image.
- Brake Lights (Campaign 19V342000): Certain Whelen brake lights may illuminate even when the pedal is not pressed.
Note: NHTSA complaints are owner reports and should not be treated as verified defects.
About this vehicle
The 2018 Ford F-450 is a heavy-duty pickup truck within the Ford Super Duty series. It is engineered with specialized chassis components designed to support significantly higher payloads and towing capacities compared to light-duty trucks like the F-150. This model is often utilized in professional, commercial, and industrial settings where structural integrity and engine reliability are paramount.
At its core is the Ford Power Stroke V8 diesel engine (6.7L). The Power Stroke engine family is a staple of Ford’s heavy-duty lineup, providing the high torque necessary for demanding tasks such as heavy hauling and large-scale towing. Because these engines are built for high-stress environments, maintenance—specifically regarding the diesel fuel system, turbocharger health, and cooling systems—is a critical aspect of ownership. Owners often research ways to manage the thermal loads and complexities inherent in high-performance diesel combustion.
Common questions about this vehicle’s diesel oil and maintenance
How much oil does my 2018 F-450 6.7L take?
It takes 13 quarts of oil when performing a service that includes the oil filter replacement.
What is the recommended oil viscosity for severe service?
For severe operations, the manufacturer recommends 5W-40. If using biodiesel blends (up to B20), 5W-40 or 15W-40 is recommended.
Can I use synthetic oil in my Power Stroke diesel?
Yes, AMSOIL offers Signature Series and Heavy-Duty 100% Synthetic options like DTTQT-EA designed for these engines.
What is the torque spec for the oil drain plug?
The oil drain plug should be torqued to 19 ft/lbs.
How often should I change my oil filter?
While intervals vary by use, using a high-efficiency filter like the AMSOIL EAO98-EA can help manage contaminants and support extended service life.
How do I check for active recalls on my F-450?
You should contact a Ford dealer or visit the NHTSA website to check for open recalls using your specific Vehicle Identification Number (VIN).
Disclaimer: The information provided is based on available source data. Always consult your vehicle’s owner’s manual and official service documentation before performing maintenance.