Amsoil Transmission Fluid in ZF 8 speeds

[stenerson]

Has anyone done a full trans fluid replacement using the amsoil recommended fluid for the ZF 8HP70? Whats your experience snd did you do a full drain and fill x3 to get 90%+ OE fluid out? Always makes me wonder how one fluid can react with another. There must be enough similarities that they are equivalent although ZF will never admit anyone else makes a safe fluid for obvious reasons.

I did a drain and fill last fall (using PPE pan) and amsoil ss fuel efficient ATF. Ran silky smooth through the winter. I posted a dumb move I made installing the caulk bypass and not properly seating the snap ring. Post: Bonehead move, drove with no tranny fluid OUCH! It sprung a leak, I ran it dry and it stalled. Got it towed, refilled with the same Amsoil. It was about completely dry considering all the fluid I had to put in it. So it's been about 6 weeks and 2K miles with 100% Amsoil, tranny seems to love it.
I got the 3.6, I don't know if engine makes a difference.
That being said another shoutout to that caulk bypass, tranny temps running 15 to 20 degrees cooler in the summer.
I also used Amsoil in front diff and transfer case.