I pulled a sample today of the Amsoil ATF from my Camry. Its not as red as I had hoped it would be, its dark, but certainly not black. I will mail it in for a UOA Monday. If its not too bad, then my plan is to have a local place drain the fluid, drop the pan, replace filter, clean magnet, and refill. Amsoil says 50K for severe and 100K for normal. I have about 43K miles over 3 1/2 years. The Amsoil ATF was installed via a flush, so it was a complete replacement.
