Originally Posted by strokingirl
This is my first time so bear with me..... I have an '03 F350 w/ 6.0, magnaflow exhaust and air intake w/ a DiabloSport Tuner. Was really hoping the tuner would up my mileage but I am steady at about 10mpg. It SUCKS
Welcome to the Addiction um I mean Org! I am not saying the tuner you have is junk, so don't take this wrong............ anybody cause I ain't bashin' I would sell the DiabloSport Tuner and get your self an SCT with Custom Tunes from Innovative Diesel or Eliete Diesel. There are also Chips burned by Tony Wildman, DP Tuner, Power Hungry Performance and the like. If you do some looking around the board you will find most members will say they get the best mileage out of the street tunes, far more than can be achieved with the economy tunes or any tuner you can buy with canned tunes. Again Welcome and have fun!