Adding Engine Oil; Engine Oil Recommendations - Ford 1998 F-150 Owner's Manual

Maintenance and care
oil must be removed from the
engine by a service technician.
7. Put the indicator 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 fluid level is not within
the normal range, add only
certified engine oil of the preferred
viscosity. Add engine oil through
the oil filler cap. Remove the filler
cap and use a funnel to pour oil in
the opening.
3. Recheck the oil level. Make sure
the oil level is not above the MAX
mark on the dipstick.

Engine oil recommendations

Look for this certification mark.
Ford oil specification is
WSS-M2C153-G.
Use SAE 5W-30 motor oil certified
for gasoline engines by the
American Petroleum Institute.
Do not use supplemental engine oil
additives, oil treatments or engine
treatments. They are unnecessary
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