Nix the autocross idea, the only place up here that has anything like that wants $150 per run on the course.
But it's still getting terrible gas mileage, which I want to say is because of my inability to keep myself from slamming the gas pedal every time I go anywhere... But I know it has to do with the o2 sensor, because before the trims started learning I got a full week out of 1/4 tank, and not even half a week out of the other 3/4 tank.
Drove it like I stole it the entire time.
Anyone got cheap ideas for cleaning an o2 sensor? I'd just go buy one if I didn't have to fly back home end of this week...