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Hi,

 

I am looking for the right transfer case fluid for my Sierra with “auto” selection (if that matters).

 

I know it needs Dexron VI, but I see a synthetic and what may be non synthetic. I was told it is part number 88865601, having a hard time confirming. That appears to be the one that does not say synthetic on it.

 

Thanks in advance for any help.

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I used the Amsoil ATF in my 15 and will do the same in the18.

 

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+1 for amsoil

Sent from my SM-G960U using Tapatalk

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