Krazy, I got mine about a month ago, i went from 11 mpg about everywhere, to 19 in the city and 22-23 on the highway. Im gonna get the chip that is supposed to give 4-5 more mpg. I got a Dodge simply because of the Cummins engine. Hell, ford is supposed to be switching engines soon to International or Cummins. Appearantly there have been a lot of problems with the powerstroke?? Give me a call and Ill let you take it out for a spin....