16.48 mpg on my first tank with the front air dam.
2 mpg over my lifetime average.not too shabby hey?
i haven't seen them kind of numbers since before i converted to dual rear wheel!
........
ok so i threw one side skirt on.the side without the fuel tank fillers for now,since this was my last running board.
you can see how i angled it in behind the toolbox,but left a gap of course since it's a dump bed,the toolboxes are hooked to the frame and don't lift,but the skirts do,as i simply bolted them to the bed,so much easier install.
i'll probably give them the garden edging treatment on the bottom as well for the cleaner,finished look.though not sure if i'll hang 'em lower or just on top of the bottom section strictly for appearance.
i'll have to keep my eye out for super cab running boards now in the local buy/sell mags so i can do the other side low cost.