I drive a mix route of highway and city roads to work each day in my 98 Taurus LX Vulcan 3.0 I usually get between 300 and 320mile per a tank. Farthest I've gone is 340 and on a 16 gallon tank I had to fill up 15.3 gallons when I filled up. So I could of probably gone anotehr 10 or 15 miles.