um i get 320 miles to a tank when bein gd but usually i do im doing bout 170 miles to half a tank at the mo goin 2 uni nd thats doin 70 but the roads where i live are pretty flat and straight it depends if ur urban as well when i go through stourbrige ive seen it at 6 mpg and only after ive got on to straight roads for 10 mins does it go up