I have a 4 cyc 95 and it has always gotten decent/good gas mileage but the past 2 weeks or so its really gone down. I put gas in last wednesday, put it to on the high side of 1/2 a tank. The only driving i have done since then was home from the gas station (maybe a mile and a half) then to school and back thursday, not even a mile, and i just kick it into neutral 1/2 the way to school cause its all down hill. then the same thing friday, except the school run twice. saturday i drove maybe 2 miles, sunday i didnt do anything. It is already down to almost a quarter tank. what are somethings that would make the gas mileage go down that much or whats going on??? thanks...