Ford 1998 F-150 Owner's Manual page 157

1. Make sure the vehicle is on level
ground.
2. Turn the engine off and wait a
few minutes for the oil to drain
into the oil pan.
3. Set the parking brake and
ensure the gearshift is securely
latched in P (Park).
4. Open the hood. Protect yourself
from engine heat.
5. Locate and carefully remove the
engine oil level indicator
(dipstick).
6. Wipe the indicator clean. Insert
the indicator 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.
Maintenance and care
MIN MAX
157