In a 1996 Ford Taurus ( 5W-30 ) according to the Owner Guide
R134a
The Owners Manual specifies yellow anti-freeze
On a 1996 Ford Ranger : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
According to the 1996 Mercury Sable owners manual :It came from the factory with a 50 / 50 mix of distilled water and GREENcolor antifreeze ( meeting Ford specification ESE-M97B44-A )
The 2003 Ford Taurus has a 4-speed automatic.
The 2001 Ford Taurus has a 4-speed automatic.
The 2012 Ford Taurus has a 6-speed automatic.
The 2011 Ford Taurus has a 6-speed automatic.
The 2008 Ford Taurus has a 6-speed automatic.
The 2010 Ford Taurus has a 6-speed automatic.
The 2004 Ford Taurus has a 4-speed automatic.