i just replace my o2 sensor on friday my old one the voltage was messed up inconsistan yesterday i drove around about 70 city miles and 136 miles high way and it was half a tank gone i filled up yesterday i put in 8.167 gallons and i did 206.8 miles divided by 8.167 and i got 25.35 miles pergallon im so happy now because i went from 13 miles city to this so ill do some city driving and let you know thanks everyone for your help......... feels good.....

 

whoa... 13mpg?? my lt1 caprice did better than that.. glad your back to normal

 

yea thanks i was getting 13 and like 12 and highway was about 18