Hello! I'm not sure about my gas milage, the speedo is off because of the tires, but the best I can tell, I'm getting 12 to 13 mpg. The truck runs great, very good acceleration! I did advance the timing a little so that it would run better and turned the air cleaner lid over so that it gets more air. Had to turn the little fittings over so that I could reconnect the vac lines. I want to put a K&N filter on next. I use my 4 wheel drive every week on saturday nights. I'm a track official at Vallejo Speedway, and I use the truck to pack the mud track before the race cars come out. So it gets quite a work out every week. Plus I go hill climbing with the kids once in a while. They love it! It's been a very good truck and wouldn't trade it for anything!