22 gallons.
17 gallons or 19 gallons depending on model ( U.S. )
mine holds 21 gallons so im pretty sure your hols the same
17.5
A 2004 F150 Super Crew holds 30 gallons ( 113.4 liters )
I believe that is 17 U.S. gallons for the steel tank
( 16.5 gallons ) according to the Owner Guide
The gas tank on the 2009 Ford Mustang holds 16.0 gal..
The gas tank on the 2009 Ford Flex holds 18.6 gal..
The gas tank on the 2009 Ford Edge holds 19.0 gal..
The gas tank on the 2009 Ford Expedition holds 28.0 gal..
The gas tank on the 2009 Ford Fusion holds 17.5 gal..