Manual transmission flush
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Thread: Manual transmission flush

  1. #1
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    Manual transmission flush

    So after 1200 miles on any car I own I usually flush the transmission fluid.

    Dealers in NJ are discouraging me and some telling me it can't be done. They are idiots right?

    I do this obviously so any break in metals are taken out.

    Oil changes are comical...as high as $400!


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    Re: Manual transmission flush

    Quote Originally Posted by shivaswrath View Post
    So after 1200 miles on any car I own I usually flush the transmission fluid.

    Dealers in NJ are discouraging me and some telling me it can't be done. They are idiots right?

    I do this obviously so any break in metals are taken out.

    Oil changes are comical...as high as $400!


    Sent from my iPhone using Tapatalk
    I don’t think they are idiots. While I guess it can’t hurt it seems completely unnecessary in this day and age. I have never done that on any car and have never had an issue. But, it’s your money and if it makes you feel better, go for it.


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    Re: Manual transmission flush

    I like the idea of flushing fluids. But you better know exactly what type of fluid is required. BMW would not do it on my 5 speed manual X5 SUV. They stated it was a lifetime fluid. And the Mazda dealer put non-synthetic fluid in my Miata 6 speed. It became difficult to change gears, so I found the correct synthetic fluid and had a neighborhood old-school shop drain and refill the transmission for $30 (I bought and supplied the fluid). Difficult shifting was solved.

    Porsche dealers may not have a lot of experience with changing the transmission fluid, so you have to be the expert

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    Re: Manual transmission flush

    Wow to think an LSD can go a lifetime with the same gear oil...I guess times have changed!


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    Re: Manual transmission flush

    Ask a competent race engineer what they would do.
    '14 BS/MT/X73

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    Re: Manual transmission flush

    Quote Originally Posted by shivaswrath View Post
    Wow to think an LSD can go a lifetime with the same gear oil...I guess times have changed!


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    On my BMW E39 the transmission fluid was lifetime. Or as my independent liked to say the lifetime of the transmission because they tended to last around 130k miles.

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