Amsoil's multi vehicle formula (that isn't for CVT's) clearly meets a whole range of specifications that other fluid makers specifically say is different. Example: My Santa Fe said to use Diamond SP-III otherwise it would implode and there were stories of owners with imploded transmissions where they used something other than dealer fluid claiming to meet this standard and it clearly didn't. I used Amsoil's multi-vehicle ATF for 450,000 of the 535,000km and had 0 issues. This fluid covers all transmission types with very few exceptions. One of which is CVT's and Type "F" I believe. There are 0 stories of it imploding transmissions in mass amounts where it was used properly in a properly functioning transmission.
I'm not saying that you aren't right in this instance with the CVT but that I'm sure a company like Amsoil that depends on its reputation for its higher priced oil to sell would have taken this into account before saying that. They even have a product application guide on their site that takes into account all OE specifications and will tell you which product perfectly fits their requirements so it's not a guessing game.
That said if I can't find an Amsoil shop I will send her to the dealer for that part of it. The only reason I'm inclined to use Amsoil is the they specifically studied the Nissan CVT's and have tear down measurements, specifications and photos before/after and the cleanliness is superior to that of the Nissan Fluid. (Ok might be biased but honestly with the UOA's and personal experiences with their other products I believe them)