Was a shocker. I am back in Mo. and 3.39.Drove 2 lane hiways, down the Wabash and Ohio Rivers, coming home today. 56 mph, hilly terrain. 37.8 mpg. 1.6-1.7 gph. 15-16 TPS. 10 mph slower, mileage increased 3 mpg. I think that is pretty good for an 03 gt on regular gas. Scangauge is paying for itself o...