Originally Posted by shankster
Holy cow you guys all get great mileage! I have an 06 lbz 6.6l with a 6" procomp lift, 20" rims and 33" Toyo's on it. It has AFE stage 2 intake, Mbrp turbo back exhaust, and a Edge w attitude chip in it! I am getting 12mpg/hand calculated and on the gauge empty! What is wrong with my truck?
You didn't say if you recalibrated your speedometer or not, but if you haven't done so, that will make your mileage seem even worse than it is. Taller tires will make your odometer see fewer miles traveled, which in turn throws your hand calculations off. If your speedo is correct, then you can blame it on the lift, tires, and the weight of your right foot.