30-32 mpg when I'm just putzing around on my everyday, "local" (100 mile radius),backroad runs. 35- 38 mpg on the superslab. I do like to twist the wick from time to time. Currently running a 225-55 16 CT on the rear and she has those Mad Dog, Aussie aftermarket pipes, which do run a bit more efficiently than the stockers.
Oh yeah, and I switched to 87 octane fuel (from the recommened 89) about a month or so ago and she runs better than before the switch!