13 gallons

How Many Gallons Is A 2011 Ford F150 Fuel Tank? The 2011 ford f-150 comes with a 26 gallon capacity gas tank, with a 36 gallon tank being optional. How many gallons is the gas tank on a 2011 Ford F150? Fuel & MPG Combined MPG 16 mpg EPA mileage est. (cty/hwy) 14/19 mpg Fuel