That's the first I've heard of not using ATF in power steering pumps. I've used Amsoil and Mobil 1 ATF for years now in both of my Benzs with no problems. I don't doubt that ATF is somewhat different than power steering fluid but is it really necessary to use power steering fluid?
Has anyone out there had any problems using ATF rather than power steering fluid, i.e. leaks, premature pump failure, pump noise, etc. etc.?
Not that I doubt your knowledge Larry because you seem to be well versed, but??