2012 Ford F350 Super Duty Owner Guide 4th Printing - Page 376

Maintenance and Specifications • Oil levels above the upper hole may cause engine damage. Some oil must be removed from the engine by a service technician. 7. Put the dipstick back in and ensure it is fully seated. Adding engine oil 1. Check the engine oil. For instructions, refer to Checking the engine oil in this chapter. 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. To avoid possible oil loss, DO NOT operate the vehicle with the engine oil level dipstick and/or the engine oil filler cap removed. Engine oil and filter recommendations Look for this certification trademark. (6.2L/6.8L gasoline engines only. For diesel engine information, refer to the diesel supplement). Use SAE 5W-20 engine oil Only use oils certified for gasoline engines by the American Petroleum Institute (API). An 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. 376 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)