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Transmission treatments

  

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I have a 2003 Chevy Avalanche with 150000 miles on it. I did a transmission fluid change at 60000 miles. I watch one of your videos that had a transmission treatment used to get it from leaking If I remember correct. I think mine is leaking slowly but I'm not seeing it on the ground where I park.   Is there a treatment that will help and help my transmission last longer? As of today it is shifting ok.


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I think you may be referring to the following video - additives can work on engine seals, but anything that causes seals and gaskets to swell to seal leaks would probably do nasty things to your auto trans.

https://www.youtube.com/watch?v=HTT0sejhoOQ


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