When should I be using overdrive? - FirebirdV6.com/CamaroV6.com Message Board

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  • When should I be using overdrive?

    I had been using OD full time, then I thought I should be using regular drive. When should I be using OD, and drive?
    Hot Girls=Good

  • #2
    OD is where your gas mileage comes from...
    I think you're only supposed to drop it down into Drive when you're going up a hill or something to save the tranny from downshifting all the time.
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    • #3
      if you mean driving around in third instead of "drive", leave it drive... it saves tons of gas, but occasionally on a full tank ill drive it in third.
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      • #4
        Nope....

        Overdrive should only be used in speeds excess of 55mph.
        Soon to be Mommy!<br />2005 Honda Pilot EX-L

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        • #5
          <blockquote>quote:</font><hr>Originally posted by cassie:
          Nope....

          Overdrive should only be used in speeds excess of 55mph.
          <hr></blockquote>

          then why would the car shift into overdrive at 41?
          the only thing that is bad for it is when you shift in and out of fourth like in a 35 to 45 mph zone where your speed is up and down and you are downshifting out of fourth. If you notice it, it's probably a good idea to shift it into third yourself and leave it till you can hold a steady speed.
          millionformarriage.org

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          • #6
            Normally, just leave it in OD, but if you get driving around where you are up and down in speeds, like LD said, or if you are going slow up a hill or something, and lugging the engine, then you should drive it in D.

            However, you shouldn't just downshift while you are driving the car, unless you have a shift kit, otherwise, you will shorten the life of the tranny. The tranny is set up to overlap and slip a bit between gears, and it will do both when you downshift. It's bad enough that it slips as much as it does stock, when you hit the gas and it automatically downshifts, the PCM kicks the line pressure up, to firm up and quicken the shifts.

            When you downshift manually while at normal throttle, the line pressure is low, so it will slip more, and take longer to down shift.

            To downshift it while driving, get it to automatically downshift into 3rd gear, and hold it while you put the shifter into 3rd.
            Wife and a dog, they both think they\'re Kujo.<br /> <br />1999 3.8 A4 Y87<br />Navy Blue Metallic<br />BFG G-Force KDWS 275/40/17s, <br />WS6 Wheels (17x9)<br />Phoenix Transmissions 2400 Stall Converter<br />FRA, Holley Powershot filter, Whisper Lid, Ported Throttlebody<br />2000 manifolds, Flowmaster, WS6 Tail Pipes, <br />MSD 8.5mm Wires, MSD Coils, Autolite plugs<br />Performance Cryogenics treated rotors<br />1LE Sway Bars and panhard rod, 1LE front springs w/SLP Bilsteins, stock rear springs w/ 3rd Gen Bilsteins, BMR STB, KBDD SFCs, 1LE rear lower control arms, 1LE front lower control arms<p>1968 Chevelle Malibu 327 TH350

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            • #7
              if i dont expect to drive &gt;45mph (read morning commute to work) i will just leave the trans in 3. i dont like the transmission constantly shifting in and out of OD as i coast along from light to light.

              further, i believe keeping the trans in 3 delays the t/c lockup until 70mph (in OD lockup occurs at 55mph). i will have to check on that though.

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              • #8
                i know this is a stupid question but which is overdrive, the D with the sqaure around it or the D without the square?

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                • #9
                  D with the square is overdrive. D w/o the square is drive.

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                  • #10
                    <blockquote>quote:</font><hr>Originally posted by jdubs:
                    i know this is a stupid question but which is overdrive, the D with the sqaure around it or the D without the square?<hr></blockquote>

                    count up from the bottom
                    auto's have four gears, fourth is overdrive
                    millionformarriage.org

                    Why stop people from getting married?

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