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  • gasmileage

    Is it normal for a firebird to burn threw a half a tank quick, it seem when my car has a full tank its gets really good gas mileage but from a half a tank i could be drive a short ways and watch the need move slowly down
    cold air intake <br />80 series flowmaster<br />no cat (straight pipe)<br />rebel flag

  • #2
    Mine does that, it takes forever to get to half tank but after that it just drops.
    1997 Camaro RS<br />--------------------<br />K&N CAI<br />2 1/2 inch dual Borla<br />Bosch Platinum +4 Plugs

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    • #3
      Our tanks are shaped like a V so our gauges aren't really accurate. It is completely normal to go "threw" the second half (according to the gauge) quicker.

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      • #4
        As HokieBird said, our tanks are roughly triangular in profile, so they little float in there doesn't do a great job of telling you exactly how much fuel is left in there.

        Based on 8 years of driving observations, on my car:
        Full line = ~3/4 tank
        3/4 line = ~1/2 tank
        1/2 line = ~1/3 tank
        1/4 line = ~3-4 gallons (depending on time of day and/or phase of the moon)
        just over empty line = ~2 gallons

        ...but I'm not sure that this is the same for other cars.
        1997 Camaro, Y87 Perf. Package, iRotor Drilled & Slotted Brakes, Bilstien Shocks, Custom drive shaft, K&N Filter, & Mobil 1 synthetic. 202+K miles and still drives like new.<br />-If you can\'t stomp \'em in the straights, kill \'em in the corners...

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