i can make it from nyc to boston and back again on a full tank of gas which is 420 miles with exxon 93 octane. i noticed the car eats up gas above 3000rpm when im at cruise control doing 80-85 and i would get only 350 miles. 80mph is exactly 3000rpm so i cruise at 65-77. even when accelerating from the toll booth, i make sure i dont go over 3000rpm :D