yo maybe you are clicking on the wrong forum but you don't need to provide a scientific explaination every time you post something....let see hmm i thought forums were for discussing which is what we are doing. he just put it out there to say that when he calculated his mpg he got 58 and now we are discussing how he got it and taaaadaaa we have a thread. yay now that you understand the workings of a forum we can move on