That could depend on what year it is , rear wheel drive or 4x4 , air suspension or standard suspension etc . A little more detail please .
According to the 2010 Ford Ranger owners manual : ( the SuperCab gas tank holds 73.8 liters )
Inside the gas tank combined with the sending unit for the fuel gauge
In a 2003 Ford Explorer : The gas tank size is ( 85.2 liters ) if that is what you are asking
A 2005 Ford Excursion has a 44 U.S. gallon tank ( 166.4 liters )
Should be 65 Liters.
I have a 2001 with a diesel and its a 38 gallon tank
18.0 gallons or 68.1 liters.
According to the 1999 Ford Explorer owners manual : The four door gas tank holds ( 78.7 liters / 20.8 U.S. gallons )
58.7 liters ( 15.5 U.S. gallons ) is the gas tank capacity on a 1999 Ford Mustang
The ( 2011 ) Ford Flex is ( 70.4 liters / 18.6 U.S. gallons )
The 1999 Ford Crown Victoria gas tank is ( 71.9 liters / 19.0 U.S. gallons )
16.5 U.S. gallons ( 62.5 liters )