I won't copy paste from the thread, but you can read the discussion here:https://www.bobistheoilguy.com/foru...71227/re-three-atfs-analyzed#Post5271227
Here is my opinion, it's worth exactly as much as you're paying for it.
Yes the Idemitsu/Aisin/Maxlife fluids do not have the same analysis as Z1/DW1. If you want a clone of DW1, it doesn't exist, buy DW1.
It is my belief that just like motor oil, gear oil, coolant, etc, there is more than one way to get the job done. We have been told by Idemitsu that their H+ fluid has all the proper characteristics to work properly in place of DW1. How they do that and don't have matching chemistry, they haven't said. I don't particularly believe that with all the smart fluid engineers out there that whoever came up with the DW1 formulation had the golden key back in the mid 2000's as to the only way to make a fluid with those performance specs. It's been at least 10 years since DW1 came to market, I'm sure there's more than one way to skin that cat.
I also have spoken with the shop that did the rebuild for my wife's transmission in her now dead 2000 as to what fluid they recommend, a shop that rebuilds and ships Honda transmissions all over the US and has a great reputation. They use a 'multi-use' fluid in all of their rebuilds (Similar to Maxlife I expect, I have since forgotten the label on the drum at the shop), including the BAYA/MAYA 'fragile' V6 transmissions from the early 2000's. His opinion is that clean fluid is much more important than using DW1 exactly.
Me personally? I have switched over to the Idemitsu fluid because it can be had in a 5qt jug which I find more convenient than quarts. It has done everything I expect it to in my J-Series cars (And was working fine in the wife's rebuild until it got plowed by a cargo van and totalled).
As for Dex6, can't speak to it. Never considered using it in a Honda trans, although I'd be inclined to leave it to the GM stuff and pick up something that at least carries a 'suitable for' label. (Maxlife/Castrol/H+/Aisin/DW1).
That ATP stuff.....ehh, try it if you want, I'm a little leery about it and think I'll just stick with a regular fluid.
Not that we're discussing it here, but I certainly wouldn't ever go the other way and use DW1 in anything other than a Honda/Acura(and that one Saturn) transmission.