Any idea of the mpg without the turbo? I just bought a sidekick ljx this year and keeping with traffic and a few eco mods managed 32mpg. I lowered mines 2 inches, blocked the upper and lower grills, removed the roof rack, spare tire, spare tire carrier, installed front skid plate, inflated tires to 40psi, serviced all gear boxes and put synchromesh in the tranny.
I just recently got the ac working by using a shop vac to remove 5 gallons of pine straw and other yard waste.