Good gracious, you guys sound like you are haveing a pissing match over gas milage. I asked about mine not because I thought I might get the economy of a damn civic or nothing, but rather that I used to get about 260 a tank even after I bought the 31's about 6 months ago and now it's down to 200 miles to a tank. For not having done anything to it in that time, that might have been detrimental, I think it's a drastic change. A friend thought my auto hubs may not be disengaging but I looked into it but they are fine and not locked up. In a different thread, someone suggested cleaning the MAS, that had no effect, I could eat off it now but it was as if I never touched it; it wasn't even dirty to begin with. I am hoping that MAYBE there was a LOT of un-necessary friction in the tranny that is to be replaced here soon and the new one will "spin freely" and give back those extra miles. I also was thinking that the new K&N filter might have helped so I got one a few months back but again...no change...in the slightest.
I'm not on the quest for 30mpg but it would be nice to get from my current 10 back to my old 15. With my little bit of driving each day (13 miles for work...round trip) it would make the differance of having to fill up 4.6 days later.