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    Synthetic Transmission Fluid a Bad Idea For High Mileage vehicles ?
    #1
    Founding Member Bobcat's Avatar
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    I just changed the filter and fluid on the van (194,000 miles) tranny is slipping in and out of gear....worse than before. I know that Marine engines with high hours do not like synthetics, what about old transmissions ?
    Parabellum FJB
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    #2
    Founding Member / Super Moderator Ratickle's Avatar
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    I was once told to never change the fluid in an old auto tranny, it would slip if I did.

    Pour some 90 wt gear oil in....
    Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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    #3
    Founding Member Buoy's Avatar
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    Next time doing tile or block work, toss some mortar in there.
    That'll stiffen it up!
    "Keep the bottle on the bar Ira, I won't be long".
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    #4
    Founding Member / Super Moderator Ratickle's Avatar
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    MAybe you're supposed to use the blue tranny oil for older transmissions to stiffen them up?
    Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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    #5
    Founding Member Buoy's Avatar
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    Quote Originally Posted by Ratickle View Post
    MAybe you're supposed to use the blue tranny oil for older transmissions to stiffen them up?
    Talking tranny oil to a guy in KW...
    Just saying...
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