Your gas tank will hold 16 gallons of fuel
According to my Chilton's Auto Repair Manual : A 1987 Ford Mustang has a ( 15.4 U.S. gallon gas tank )
15 gallon
60 liters ( 16 U.S. gallons )
16.0 U.S. gallons ( 60.6 liters )
According to my Chilton's Auto Repair manual : A 1970 Ford Mustang has a ( 22 U.S. gallon gas tank )
According to my Chilton's Auto Repair Manual : A 1990 Ford Mustang has a ( 15.4 U.S. gallon gas tank )
about 7-10 miles per gallon
16 Gallons maximum capacity.
According to my Chilton's Auto Repair Manual : A 1988 Ford Mustang has a ( 15.4 U.S. gallon gas tank )
According to the 1997 Ford Mustang Owner Guide : The gas tank holds ( 20.0 U.S. gallons ) * I didn't think it was that much I thought it was ( 15.4 )
it depends on what type of engine you have. if its a 4.6 it uses around 20-24 MPG but the more you wear it in the more miles it gets to the gallon.