a heavy foot maybe lol

 

I would also say gas because I'm guessing you are going to the gas stations with the cheapest gas? I've tracked my mileage with 4 different stations (racetrack, valero, exxon, and kroger) It seems the kroger and racetrack actually give me less mgp. Exxon and Valero seem to give me more mileage on long trips (I measured it on one way 132 mile trips). Thats just my guess.

 

had 3.42s before, got the same **** mpg...

 

only fill up at exxon, chevron or shell...no walmart/sams/kroger/heb gas for me

i'm still considering the possibility of the afr, it was tuned originally WITH the cats, then i cut them and got a retune to tune out the rear o2's but still haven't got to put a wideband back on it...could i be running too rich?

 

this last calculation was on strictly highway miles...

and a 30 gallon tank, this is bulllll

 

any codes? how is it at idle, a little rough or good? could be a bad 02 sensor

 

If you cut off your cats then yea, i'd redo your wideband. that should help out some.

 

idles perfect.

 

going to go that route, atleast it will rule that out.

any other ideas guys?

 

The same mileage with 3.42s as with 4.10s????

Tried any BG 44K or Sea Foam in the gas lately? Tail pipes look black inside?