Ford F-150 Owner's Manual page 391

5. Locate and carefully remove the
engine oil level dipstick. See
Identifying components in the
engine compartment in this
chapter for location of dipstick.
6. Wipe the dipstick clean. Insert the dipstick fully, then remove it again.
• If the oil level is between the lower and upper holes or between
the MIN and MAX marks (depending on application), the oil
level is acceptable. DO NOT ADD OIL.
• If the oil level is below the lower hole or the MIN mark, add enough
oil to raise the level within the lower and upper holes or within the
MIN-MAX range.
• Oil levels above the upper hole or the MAX mark may cause engine
damage. Some oil must be removed from the engine by an authorized
dealer.
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.
2012 F-150 (f12)
Owners Guide, 2nd Printing
USA (fus)
Maintenance and Specifications
391