Why not just reset your Smarty to the lower lvl for economy, I have a Jr and had it set on SW1 and was gettin 17 mpg around town drivin like a person not someone who stole it. Keep it under 2000 rpms when pullin away from lights and do the speed limit. If I put my foot in it some I would get 16.5 mpg. Why pay more money for a another programmer.