Car fuel with mixed drive: 6.3 litres/100 km (37,15 miles per gallon). Car fuel with city drive. Car fuel tank capacity: 45.0 litres (11,83 gallons). How much fuel consumed Ford Fiesta 1.4 l, liters / 100 km or miles per gallon. Ford Fiesta 1.4 it is a Small / Economy Car. Car engine capacity: 1388 ccm (84,28 cubic inches).