2018 Ford F-350 Super Duty — Oil Capacity & Filter

The 2018 Ford F-350 Super Duty takes between 7 and 13.0 quarts of oil, depending on the engine.

Quick Answer

6.2L SOHC V8 (Gasoline)

• Oil Capacity: 7.0 quarts (6.6 liters)
• Recommended Oil Weight: SAE 5W-20
• Oil Specification: WSS-M2C945-B1 (API SN PLUS or higher)
• OEM Oil Filter Part Number: FL-910S
• Aftermarket Oil Filter Cross-References:
  • Fram: PH2
  • Wix: 57502
  • Mobil 1: M1-210

6.7L Power Stroke V8 (Diesel)

• Oil Capacity: 13.0 quarts (12.3 liters)
• Recommended Oil Weight: SAE 10W-30
• Oil Specification: WSS-M2C171-F1
• OEM Oil Filter Part Number: FL-2051
• Aftermarket Oil Filter Cross-References:
  • Fram: CH11665
  • Wix: WL10000
  • Mobil 1: M1-303

Capacity by Engine Option

Oil Change Interval

For both gasoline and diesel engines:

• Normal Duty: Every 7,500 to 10,000 miles or 6 to 12 months, whichever comes first.
• Severe Duty: Every 5,000 miles or 6 months, whichever comes first. Severe duty includes sustained towing, heavy hauling, extreme temperatures, dusty conditions, or frequent short trips.

Drain Plug Torque

6.2L SOHC V8 (Gasoline):

• Drain Plug Torque: 19 lb-ft (25 Nm)
• Crush Washer: Always replace the crush washer with a new one to ensure a proper seal and prevent leaks.

6.7L Power Stroke V8 (Diesel):

• Drain Plug Torque: 20 lb-ft (27 Nm)
• Crush Washer: Always replace the crush washer with a new one to ensure a proper seal and prevent leaks.

How to Change the Oil

1. Warm Up Engine: Run the engine for a few minutes to warm the oil, allowing it to drain more easily.
2. Lift and Secure: Safely lift the front of the truck using a jack and secure it with jack stands. This provides access to the drain plug and oil filter.
3. Locate Drain Plug: Place a suitable oil drain pan beneath the oil pan. Remove the drain plug with the appropriate wrench.
4. Drain Oil: Allow all the old oil to drain completely. This can take several minutes.
5. Replace Drain Plug: Once drained, reinstall the drain plug with a new crush washer and torque to the specified setting.
6. Remove Oil Filter: Position the drain pan under the oil filter. Use an oil filter wrench to loosen and remove the old filter. Be prepared for additional oil to drain.
7. Prepare New Filter: Apply a thin film of new engine oil to the gasket of the new filter.
8. Install New Filter: Hand-tighten the new oil filter until the gasket makes contact, then tighten an additional 3/4 to 1 turn. Do not overtighten.
9. Add New Oil: Refer to the "Capacity by Engine Option" table and add the recommended amount and type of new oil through the oil filler cap.
10. Check Level: Start the engine and let it run for a few minutes to circulate the new oil. Turn off the engine, wait a few minutes for the oil to settle, then check the oil level with the dipstick. Top off if necessary.
11. Check for Leaks: Visually inspect the drain plug and oil filter for any signs of leaks.
12. Reset Maintenance Reminder: Many F-350 models have an oil life monitor that needs to be reset after an oil change. Consult your owner's manual for specific instructions.

Common Issues / Tips

• 6.7L Power Stroke — Fuel Filter Maintenance: While not directly oil-related, it's critical to remember the importance of fuel filter changes on the 6.7L Power Stroke diesel. Refer to your owner's manual for the recommended interval, as proper fuel filtration is vital for the longevity of the high-pressure fuel system.
• Diesel Exhaust Fluid (DEF): For 6.7L Power Stroke owners, keep an eye on your DEF levels. While not oil, proper DEF levels are necessary for the emissions system, and running out can derate engine power.
• Proper Disposal: Always dispose of used engine oil and filters responsibly at an authorized recycling center or auto parts store.
• Owner's Manual: Always consult your 2018 F-350 Super Duty owner's manual for the most accurate and up-to-date information regarding maintenance schedules, fluid capacities, and specifications.

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