Anyone see a big increase in gas mileage after changing 02's?

[Reg Kmet]

heya, i bought a new set for my 3.4L (wich has about 61,000 miles on it) got em for 33$ Canadian each at my local partsource store. Im just wonderin if i'll see a few extra MPG from em, would be nice to get my 70$ worth [img]smile.gif[/img]

[Shadly]

<blockquote>quote:</font><hr>Originally posted by Reg Kmet:
Im just wonderin if i'll see a few extra MPG from em, would be nice to get my 70$ worth [img]smile.gif[/img] <hr></blockquote>
No, but after I changed my O2 sensors, my radio got louder, my seats got softer, and I found a buck on the ground.

:D

[Backfire]

I had dropped to 17-18mpg for a few months. I changed O2's and it went back up to 20+mpg. Not huge but I will take that. That is all city driving too.

[GregWS6'01]

I've only filled up twice since my O2 change. I calculated my gas mileage for only one fill up. And I'm seeing +2-3 mpg so far. It's really hard to tell since I've only done it once. It should get better. Driving foot to the floor everywhere i go doesn't help much in seeing a difference either. I noticed a little better throttle response

[MustangEater8251]

I gained a 5-7 mpg increase on mine

[nova]

I went from 20-21 high way to 24-26 highway.

Not a lot but definately meaningful the way gas prices are going.