Anyone see a big increase in gas mileage after changing 02's? - FirebirdV6.com/CamaroV6.com Message Board

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

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

    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]
    Black 1995 3.4L V6 \"<b>THE BLACKBIRD</b>\"<br /><b>Performance Mods </b> K&N Fipk, Hypertech Underdrive pullies, Accell Coilpacks, and wires, rapidfire plugs,180 degree thermo, 1LE Tranny Mount, Z28 Catback W/crome tips B&M Ripper shifter<p><b>Appearance mods</b> 2 1/2% Limo tint all around, Blacked out taillights, turn signals, and side markers, red PONTIAC rear Inlay, 98+ style centerplate bird and graphic<p><b>Stereo System</b>Panasonic Cqdf 800u head unit, 2 MTX thunder 280 amps bridged, 2 Cerwin Vega AI 12\'s on the rear deck, 6x9\'s in the rear sail panels, Monsoon Door panels With Memphis Audio 6.5\" Coaxials and tweeters, 1 farad EFX cap.

  • #2
    <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
    \'94 Camaro 3.4<br />\"No, Starvin Marvin. That\'s my pot pie.\"

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    • #3
      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.

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      • #4
        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

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        • #5
          I gained a 5-7 mpg increase on mine

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          • #6
            I went from 20-21 high way to 24-26 highway.

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

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