According to the workshop manual, the 2000 Mustang's fuel capacity was 15.70 gallons (59.42 liters).
According to the 2000 Ford Mustang owners manual it has a ( 15.7 U.S. gallon gas tank )
16.0 Gallons
16 gallons ( according to the 2012 Ford Mustang Owner Guide )
15.7 gallons
15.4 US Gallons
16 gallons
15.7
According to the 2006 Ford Mustang Owner Guide : ( 16.0 U.S. gallons )
15.4 U.S. gallons
16.0 Gallons
16.0 U.S. gallons
16 gallons