Hi, It can be either the 16 Gal tank or the optional 18 Gal tank. SteveH
According to the 1998 Ford Taurus Owner Guide : ( 16.0 U.S. gallons )
( 18.0 gallons ) according to the 2000 Ford Taurus owner Guide
16 Gallons
18 U.S. gallons
According to the 2003 Ford Taurus Owner Guide : ( 18.0 U.S. gallons )
According to the 1996 Ford Taurus Owner Guide : ( 16.0 U.S. gallons )
According to the 2001 Ford Taurus Owner Guide : ( 18.0 U.S. gallons )
According to the 2000 Ford Taurus Owner Guide : ( 18.0 U.S. gallons )
According to the 1999 Ford Taurus Owner Guide : ( 16.0 U.S. gallons )
According to the 2002 Ford Taurus Owner Guide ( 18.0 U.S. gallons )
For a 1998 Ford Taurus : ( 16 U.S. gallons ) according to the Owner Guide
19 U.S. gallons ( 71.9 liters ) on a 2012 Ford Taurus