I have a little over 200 miles on my 6 spd R/T, and decided to fill the tank since 93 octane was 2.47 yesterday. Now since i picked up the car, the engine has been either off or wide open throttle. Not much in between! I checked my mileage for the first 200 miles and it was 18.03 mpg!! I cannot believe it! I can't wait to take a long trip, because i am pretty sure the car will match (or better) the 25 mpg it's rated at for freeway.