I got 318miles/tank a few weeks ago, a best, then today I got about 325/tank. Thats insanely good if you ask me. And it keeps getting better. When I filled up I had like supposedly 2 gallons left in the tank even though the needle was on E for a while. I put in a new O2 like a month ago but didn't get great results right away. Does the O2 have a break-in period or something? This is though.

 

Maybe the gas station you frequent got a good batch of gas

 

Only thing I can think of is how much time you spent city driving or highway driving...

my bad about rapeing your name and ****...lol

 

i dont think the o2 sensor has to 'break-in' but have you been driving more on the freeway lately? could be it..

 

Yeah I use Sunoco 94 Octane, Sunoco has the best gas around, my car drives great with it. It would studder and run rough when I used Exxon or Crown and that crap. And I do like 99% highway driving as I have a one hour round trip to school at least once a day.

 

94 octane ? bastard

i think i have a hole in the gas tank , my crx gets crappy gas mileage .