Got to watch out if you pull over/slow to let the crazies pass. I had an instance where I slowed and tried to let a crazy pass, and he eventually flew past me and waited at the next intersection (no stop required for me) to pull out in front.
I get 45-50mpg at 80-90mph according to my instrument cluster. It's kind of weird how the mpg fluctuates around that speed, I think it has something to do with the ram air impact.