last tank i got 14 mpg but it's an accord... blew a hose and ran the engine way past red before i noticed it... been really bad ever since, bought a new o2 sensor yesterday and filled up so hopefully i'll see if i can get my mileage back, i've changed everything else short of the f'n engine and don't know what else i could try after this if it doesn't help... before overheating incident, was only getting about 23 so i dunno... 96 accord f22b2 auto w/183K miles...