OK, Stupid question AGAIN!!! Please tell me how to calculate gas mileage in laymans terms...LOL
I too suck at math but I drive to Ashburn Virginia everyday from Martinsburg WV which is about 67 or so miles. I fill up ever other day at 52.00 a pop. I have 7500 miles on my 3 month old baby now...

She had 13 miles on her when I picked her up...