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Hydra-Matic transmission fluid

Started by LCross, June 27, 2024, 07:08:10 PM

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LCross

June 27, 2024, 07:08:10 PM
What type of Transmission fluid should I run in my rebuilt 1941 Hydra-Matic.

Larry

J. Russo

#1
June 27, 2024, 08:10:45 PM Last Edit: June 27, 2024, 08:12:36 PM by J. Russo Reason: correct wording
I have a '41 hydra-matic. I reached out to Professor John Kelly a couple years ago. He produced a series of videos on the hydra-matic transmission.

The photos explain his answer and what I use.
John Russo
CLC Member #32828

TJ Hopland

#2
June 27, 2024, 11:31:56 PM
Interesting.  Whats different between that and Dex VI?   The sales pitch seems to be the same for both as far as I can find, super duper premium fluid that is the best thing ever for what ever you want to put it in.   
73 Eldo convert w/FiTech EFI, over 30 years of ownership and counting
Somewhat recently deceased daily drivers, 80 Eldo Diesel & 90 CDV
And other assorted stuff I keep buying for some reason

tcom2027

#3
July 01, 2024, 12:40:50 PM
Good morning,

In the early nineties I used DEX III in my '41 coupe. I had no transmission problems. THe car was driven a lot at highway speeds and in town. Except for the firm 1-2 shift it was as smooth as a modern cars. Same for the kickdown shifts.
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