brand trans fluid for yank stall

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07-26-2011, 08:05 PM

C5042081

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brand trans fluid for yank stall

what is a good fluid to use in a fresh fully built 4l60e with a yank ss4000.

I read not to use synthetic ATF.

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07-26-2011, 08:20 PM

ULTIMATEORANGESS

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dexron 6.

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07-26-2011, 09:22 PM

SS SLP2

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on my ST3500 Yank said NO synthetic ATF.
Dave said same on my SS 4000
is not dexron 6 synthetic?
Johnny

Last edited by SS SLP2; 07-26-2011 at 09:39 PM.

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07-27-2011, 08:42 AM

NVR_SPDS

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Dex 6 is synthetic. I used Valvoline Dex 3, and dont have a single problem. I even asked Andy@ FLT, and he didnt have a brand preference, as long as it meets the Dex 3 standards.

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07-27-2011, 12:08 PM

lt1-xjs

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Quote:

Originally Posted by C5042081

what is a good fluid to use in a fresh fully built 4l60e with a yank ss4000.

I read not to use synthetic ATF.

I installed mine with fresh Mobile 1 syn over 6 years ago and I'm still running the 18 year old factory trans.

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07-27-2011, 01:11 PM

RARON455

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Jakes 4l80 here with a billet converter,, said use good ole dexron mercon ,, I went with valvoline. Was told not to use synthetic in a performance application,,,too slippery.