Transmission fluid additive recommendation
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Joined: Aug 2024
Posts: 71
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From: Benton, Louisiana
Transmission fluid additive recommendation
C6 colleagues, my 2008 Automatic C6 has a harsh shift from 2nd to 3rd gear when push hard. Found out that there is a Service Bulletin stating that this is caused by some seals leaking.
I also found out that this is a common problem on the 6 speed transmission 6L80 used on many GM vehicles including Corvettes from 2006 to 2012. I suspect many of you having the same issue, I would like to know if you have used any transmission additive to condition the seals and which one is the most effective.!
Thanks in advance for sharing your wisdom!
I also found out that this is a common problem on the 6 speed transmission 6L80 used on many GM vehicles including Corvettes from 2006 to 2012. I suspect many of you having the same issue, I would like to know if you have used any transmission additive to condition the seals and which one is the most effective.!
Thanks in advance for sharing your wisdom!
