I run maxlife ATF in the PS on my 67 Ford F-250 and it does great. I have a 69 ltd with automatic, and I definitely use type F in the trans (and still in the ltd's PS), but the old fords PS system really seems to like maxlife. The ltd had a bit of a noisy PS system. I sucked the fluid out of the reservoir and filled with MMO. Ran that for a few months then did the suck and fill about 5 times again over the next few months. Been much quieter and smoother since then. Fluid still looks good, but that was type F. Next time it will get maxlife.