What can I do to get better mpg for my vehicle i am only getting 10mpg in city on 2003 Mazda Tribute

I changed all four oxygen sensor. I also only drive in O/D should i not drive that way in the city.

by in Long Key, FL on December 07, 2012
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3 answers 5 comments
ANSWER by , December 07, 2012
what are your emission readings.h/c and co
COMMENT by , December 07, 2012
I am not a mechanic so I am not sure what you mean by h/c and co
ANSWER by , December 07, 2012
Check engine light on? OD will take care of itself, no need to change. What engine 4cyl or V/6?
COMMENT by , December 07, 2012
V6 3.0l 6cyl
COMMENT by , December 07, 2012
Light on?
COMMENT by , December 07, 2012
no
COMMENT by , December 07, 2012
Check mpg again. Has to be more than 10.
ANSWER by , December 07, 2012
Was check engine light on BEFORE replacing all 4 O2 sensors? ...So if you fill-up the tank and drive 100 miles and hit the next gas station you'll be able to put in 10 gallons of gas? Your one reply states that you are not a mechanic so that makes me curious as to who and why the oxygen sensors were replaced, because if all 4 were failed at the same time it would be odd and most likely due to some other cause/failure.