Newbie to this forum with a strictly stock 06LBZ 4WDCCLB and only 5K miles on it. I currently get about 18mpg city and 22 highway by keeping the tach at 1600RPM. The reason I have so little mileage on the truck is that diesel prices here are still outrageous and I am afraid to try a vegetable oil conversion and don't want the hassle of cooking, filtering, and drying my own biodiesel. If I could be guaranteed 25mpg highway with EFILive, I'll buy one.
Otherwise I will have a truck for sale. Veggie near Washington, DC USA