My wife's car has 63 k and am planning to do auto rx treatment for auto transmission. I had fluid changed once at 30k and it presently has amsoil atf. Auto rx recommends running another treatment after 50K. I emailed specialty formulations and they recommended running their fluid for 30K in a honda. Amsoil recomends 60 K for severe servie. Is Amsoil being too liberal in their lengthy recommendation, and is Specialty Formulations being too conservative with theirs? I would be interested in people's opinions with these fluids in Honda or other vehicle.