I've got my edge perfomance on 5-5, I've got 4 inch stainless exhaust, and a K& N drop-in filter
I've got 315-75-16's on my truck and I was wondering what the best setting for fuel miledge would be, my mileage on the truck is reading 17.5, but I don't know if it is right with the larger tires, or if it might be considering the lug involved. Any help would be appreciated.
I was wondering what setting to use for the best fuel miledge on the edge performance.

Thanks

 

I have been goofing around with this for a while now, I have found it really does not matter too much on flat ground just keep your foot out of it, in the hills I run 3x3 with good luck, I can get just over 22 mpg if I mind my foot, which is often more then I can handle.