well yo your foot decides what your gas mileage is lol with my dad its over 30 with me about 9 lol but i only drive it at the track. People tend to forget the whole reason in vtec is gas mileage . Honda made vtec so you could have good power when you needed it with great gas mileage. As long as we stay on the non vtec lobe of the cam this thing gets great gas mileage even if it was in a acccord body which is what i pulled it out of. i had this motor in a accord it was just to heavy to take to the track so we put it in this body but it has always got great gas mileage.