TONS of info in the for sale post and on the EEXP page on the website. I get 11-14 mpg with this rig, as it is loaded with gear inside and out all the time. It would probably get better without the roof gear and with a tuner chip, but I built it for reliability, so have not tuned it in any way.
I'm selling to for a variety of reasons, but mostly to fund future adventures and keep the #LifeOfAdventure moving forward. I'll probably do some international flying and some dual sport motorcycle trips for at least a few months, then probably consider another build of some kind.