According to one of the Ford websites :
For both the 3.0 and the 3.8 liter , V6 engines in a 2000 Ford Windstar :
The Motorcraft ( FL-400-S ) engine oil filter is used
Motorcraft FL-400S ( according to the owners manual )
134a refrigerant has been the standard for over 10 years.
R134
According to the 2003 Ford Windstar Owner Guide : ( 5W-20 ) * With engine oil filter change , the 3.8 L V6 engine takes ( 5.0 U.S. quarts /4.7 litres of 5W-20 )
( 5W-30 ) is the preferred engine oil , according to the 1996 Ford Windstar Owner Guide
( 5W-30 ) for the 3.0 and 3.8 liter V6 engines according to the 1999 Ford Windstar Owner Guide
According to the 2001 Ford Windstar Owner Guide : ( Motorcraft MERCON-V is used in the automatic transaxle / transmission )
R-134A
Motorcraft ( FL - 1A ) for your 4.0 L OHV engine
yes, same body type
Depends on your climate. Consult the owners manual.
( 5 w 20 ) , according to the Owner Guide