Hi everyone. I`m new to the forum but I thought I`d start with this post. My`06 had been brutal on fuel,down around 12 on local stuff. About 3 or 4 months ago I bought a duramiler? programmer. I just got around to putting it on yesterday and took it for a short ride ( 8 or so miles). Started picking up mileage quickly. I picked up a mile p.g. on that short ride. I`m going to be keeping an eye on it and hopefully more good news.