According to 2009 F-250/350/450/550 Owner’s Manual, engine oil (includes filter change) – 5.4L V8 and 6.8L V10 gas engines capacity is 7.0 quarts (6.6L).
Adding engine oil:
1) Check the engine oil.
2) If the engine oil level is not within the normal range, add only certified engine oil of the recommended viscosity. Remove the engine oil filler cap and use a funnel to pour the engine oil into the opening.
3) Recheck the engine oil level. Make sure the oil level is not above the normal operating range on the engine oil level dipstick.
4) Install the dipstick and ensure it is fully seated.
5) Fully install the engine oil filler cap by turning the filler cap clockwise 1/4 of a turn until three clicks are heard or until the cap is fully seated.
Only use oils “Certified For Gasoline Engines” by the American Petroleum Institute (API). Oil with this trademark symbol conforms to the current engine and emission system protection standards and fuel economy requirements of the International Lubricant Standardization and Approval Committee (ILSAC), comprised of U.S. and Japanese automobile manufacturers.
To protect your engine and engine’s warranty, use Motorcraft SAE 5W-20 or an equivalent SAE 5W-20 oil meeting Ford specification WSS-M2C930-A. SAE 5W-20 oil provides optimum fuel economy and durability performance meeting all requirements for your vehicle’s engine.
Tip! View all 2016 Ford Super Duty models. 2016 Super Duty options include XL, XLT, Lariat & King Ranch. Select vehicles to compare options, trims, pricing and more at Ford.com.
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