Lincoln 2001 LS Owner's Manual page 209

Maintenance and care
the Lubricant specifications section in the Capacities and
specifications chapter.
Use of a non-approved automatic transmission fluid may cause
internal transmission component damage and void the warranty.
Checking and adding manual transmission fluid (if equipped)
1. Clean the filler plug.
2. Remove the filler plug and
inspect the fluid level.
3. Fluid level should be at bottom of
the opening.
4. Add enough fluid through the
filler opening so that the fluid level
is at the bottom of the opening.
5. Install and tighten the fill plug
securely.
Use only fluid that meets Ford specifications. Refer to the Capacities
and specifications chapter.
209