I'm with Rincon on this one. I've worked in the materials sciences world (in a lab, supporting DoD proposals, and their civil spin-offs)...not surprisingly, in this global economy, there are relatively few suppliers of all the basic items (chemical intermediates, metals, synthetics in all phase states, etc.) that many manufacturers use to build products for us consumers these days.
In short, the stuff in your post is no surprise to me, or to a lot of the guys on this forum who work in mechanical engineering or similar fields.
Guess how many major (not minor) glycol producers there are? Last I remember, 2 of them supply all of the major antifreeze makers here in N. America. Remember when coolant prices got really high about 10 years ago? One of the two factories had a major fire that year.
AmSOil may not refine and synthesize their own ad packs on the production line, but they micro-scale synthesize and test and then specify a tight spec for everything that goes into a plastic bottle for our consumer use. Same for a lot of petro chem marketers. As such, it's a proprietary blend, and has the full protection of the law once they put their name on it, as much so as Edgar Allen Poe's The Tell-tale Heart has from copyright infringement.
As much as I like Mystik brands for use in tractors and heavy equipment in these parts (I live in wheat and cotton land, USA), this is a first for me...a major supplier of fluids for John Deere, Case, & Massey-Ferguson tractors marketing tranny fluid for Hondas cars!
Nevertheless, I'm curious. Keep us posted on your results. I got my 5 cases of ATF-Z1 for $3.60/qt from Maximum Auto Parts (yes, they made a typo, but honored the price), and the shipping was free (their policy was no s/h charges for orders over $50). I'll stick with that on my wife's 98 Accord for now. Using AmSOil ATF on the Odys. I'm an open-minded guy (well, sometimes I'm reminded that I'm sometimes not by smarter people on this board), and have used Valvoline MaxLife, and now AmSOil ATF. Maybe you found a winner, too, but I think I'll stand by and watch on this one.
As said before, keep us posted on your results.
OF
Edited for: added just a little stuff at the end, and then spelling