Any at all? My dads considering selling my 80 due to me getting about 10 city driving and im not even hard on the skinny pedal. I have a 2.5 lift and a roof on the roof rack thats coming down very soon. 33 BFG A/T's wouldnt hurt me that much would it? I hear about you guys getting like 16 sometimes and I would love that. But ya either way my 02 sensors are blown and if I spent the money for new ones what do they run and would it increase my gas mileage enough?