The Owners Manual specifies yellow anti-freeze
The 2005 Ford Taurus has a 4-speed automatic.
The 2005 Ford Taurus runs on regular unleaded.
The Owner Guide shows Ford specification ESE-M97B44-A ( that would be the green color universal antifreeze )
( 5w-20 ) certified for gasoline engines ( according to the 2005 Ford Taurus Owner Guide )
DOT ( 3 ) brake fluid ( according to the 2005 Ford Taurus Owner Guide )
The 2005 Ford Taurus Owner Guide shows to use ( 5W-20 engine oil ) * that would be all year *
The 2011 Ford Taurus has a 6-speed automatic.
The 2010 Ford Taurus has a 6-speed automatic.
The 2009 Ford Taurus has a 6-speed automatic.
The 2003 Ford Taurus has a 4-speed automatic.
The 2008 Ford Taurus has a 6-speed automatic.
The 2006 Ford Taurus has a 4-speed automatic.