2008 Ford F250 Owner Guide 4th Printing - Page 352

Maintenance and Specifications 6. Wipe the dipstick clean. Insert the dipstick fully, then remove it again. • If the oil level is between the MIN and MAX marks, the oil level is acceptable. DO NOT ADD OIL. • If the oil level is below the MIN mark, add enough oil to raise the level within the MIN-MAX range. • Oil levels above the MAX mark 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 MAX mark 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 or until the cap is fully seated. To avoid possible oil loss, DO NOT operate the vehicle with the engine oil dipstick and/or the engine oil filler cap removed. 352 2008 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)