I believe that is a version of the AX4S automatic transmission
The transmission fluid for the 2000-2004 Taurus is MERCON V.
Ford and GM have different transmission fluids. Ford uses Type FA. Many types are universal. See "Related Questions" below for more specifics about Ford product transmission fluids
The 2002 Ford Taurus Owner Guide shows : Motorcraft MERCON-V automatic transmission fluid
4R55E automatic transmission
That should be Motorcraft MERCON automatic transmission fluid in the automatic transaxle ( transmission ) according to the 1997 Ford Taurus Owner Guide * the type used is engraved into the automatic transaxle fluid level dipstick
Mercon V is used .
In a 1995 Ford Taurus : ( 5W-30 is the PREFERRED engine oil for the 3.0 and 3.8 )
In a 2002 Ford Taurus the type of automatic transmission fluid to use is indicated on the automatic transmission fluid dipstick or the dipstick handle
Motorcraft MERCON automatic transmission fluid for the automatic transaxle ( according to the owners manual )
According to the 1998 Ford Taurus Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
On a 1995 Ford Ranger ( North America models ) The 5 speed manual transmission takes : ( 2.8 U.S. quarts of MERCON automatic transmission fluid ) * transmission code " M " *
According to the 2005 Ford Taurus Owner Guide : Motorcraft MERCON automatic transmission fluid is used as the power steering fluid