Trans Fluid/Break-in?

papajoewill

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Jan 27, 2017
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Jax FL
Hey Bs and Gs,

Wondering what everyone is running fluid wise in their transmissions?

I have a magnum about to go in and will do the 500 break in miles with some cheaper dex III and then when it comes to the longer term get something better in it.

I've read alot about amsoil ATF being the choice of many but have seen tremec come out with their own "high performance" trans fluid so I am posting now to see what the good people of SVTperformance have to say.

My motor just got dropped off to the builder so I should have a pretty neat build thread coming on very shortly and was wondering about other break-in/shake down advice as well. Obviously clutch stuff and I will follow the motor builders directions too but sometimes see people post great ideas I wouldn't have thought of myself.

Any advice is welcome and as always, thank you for reading!
 

olympic

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Dec 28, 2014
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3,544
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Canada
I use Amsoil in my Magnum and am quite happy with it. Just be sure to get the "Synthetic Multi-Vehicle" ATF, not the "Fuel Efficient" new formulation.
 

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