They technically only recommend OEM fluid like any MFG, but this is one to be listened to, its been over a year since I've dickered with a Honda. The CST is different from that of "normal" power steering fluid and those labeled Honda/Acura should be suitable for the system. I've use the Prestone Walmart Brand in between actual OEM Honda flushes on 2 Honda cars to purge bad burnt fluid on the cheap, but the best feel was had when I spend $7 a bottle on OEM juice and used it to flush the system after the cheap stuff came out clear after several thousand miles... 500 mile intervals of swapping. Take this with weight or not, but this is the only OEM fluid I've ever had a better feeling by using "by the book." The OEM reservoir is not that large if you pull the hose from the rack base you can get around 30% of the fluid out if this is a 92-00 Honda PS system. It's messy but effective, there are also methods that involve "hot swapping" fluid by hooking up a suction and return while turning the rack to purge fluid... be careful if you do this air is really hard to get out of the hydraulic system.
