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Old 06-24-2019, 10:49 AM   #1
FSA1673
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Default ATI Trans Fluid

Anyone ever switch between the Super F and the Max Duty Super F and see a difference in stall rpm or % slippage. Looking to tighten things up a bit on the converter.
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Old 06-24-2019, 11:49 AM   #2
Jeff Stout
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Default Re: ATI Trans Fluid

I would also be interested making converter a little tighter. I think trans fluid comes in different viscosity and seeing if anyone has any experience in this. Thanks Jeff

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Old 06-24-2019, 12:50 PM   #3
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Default Re: ATI Trans Fluid

Obviously, any info you gather here (from racers) will be helpful, but I would call ATI and ask them what they've heard from customer/users, and based on that, what they would expect you to see.
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Old 06-24-2019, 07:53 PM   #4
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Default Re: ATI Trans Fluid

Try some Mobil 404 hydraulic oil.
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Old 06-25-2019, 09:36 PM   #5
Marty Rinehart Jr
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Default Re: ATI Trans Fluid

It will tighten up the converter but not a set amount. Every combination will be a little different.
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Old 06-26-2019, 07:05 AM   #6
FSA1673
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Default Re: ATI Trans Fluid

Thanks Marty that is exactly what I was looking for.

The kinematic viscosity of the Max Duty is similar to heavier hydraulic fluids such as John Deere Hy-Gard and Allison Transynd. Most regular trans fluids regardless of brand have similar kinematic viscosity. I imagine it depends on weight, rpm, and torque on what the converter will see.
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Old 06-26-2019, 11:26 AM   #7
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Default Re: ATI Trans Fluid

Quote:
Originally Posted by FSA1673 View Post
Thanks Marty that is exactly what I was looking for.

The kinematic viscosity of the Max Duty is similar to heavier hydraulic fluids such as John Deere Hy-Gard and Allison Transynd. Most regular trans fluids regardless of brand have similar kinematic viscosity. I imagine it depends on weight, rpm, and torque on what the converter will see.
Also what happens to different fluids at different temperatures.
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Old 06-26-2019, 12:42 PM   #8
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Default Re: ATI Trans Fluid

Most manufactures post their kinematic viscosity at 40 and 100 degrees so that you can compare them.
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