According to the 2005 Ford Freestar Owner Guide :
The gas tank holds ( 26.0 US. gallons / 98.4 litres )
On a 2005 Ford Freestar : The ELECTRIC fuel pump is INSIDE the fuel tank . It is installed through an access hole on the top of the tank
98 L
The 2005 Ford Escape has a 16.5 U.S. gallon tank.
A 2005 Ford Excursion has a 44 U.S. gallon tank ( 166.4 liters )
There is not a drain plug on the Freestar - a good old fashioned siphon hose will do the trick.
Mounted on top and inside the fuel tank.
19.0 gallons ( 71.9 liters )
19 U.S. gallons ( 71.9 liters )
68.1 liters / 18 gallons U.S.
A ( 2005 ) Ford Excursion holds ( 44.0 U.S. gallons / 166.6 liters )
28 U.S. gallons / 106 liters
Assuming it's the North American spec, 14 gallons.