OK, I try not to concern myself with gas mileage when it comes to my Mustang - I know it's crappy, and I've never really bothered to figure out the exact gas mileage as it's difficult to fill my tank up the same way every time (You know the lovely overflowing issue we try to avoid).
However, this season I seem to notice that my Kar is especially thirsty as of late. I can't seem to go anywhere without using 1/4 of a tank of gas. It's starting to really annoy me and get expensive to take her out anywhere. She runs great, is in good tune, so what the heck? Is the gas really getting so bad? I fill up with non-oxygenated premium (91 octane).
For those of you who bother to keep track, what kind of observed gas mileage are you getting for mature street driving? I think I may be averaging in the single digits or something.