Honda has always been a little picky about fluids. Why that is exactly is a whole different debate than Dextron VS. Honda ATF. All I know is I once emptied my PS system in my '93 accord, refilled it with regular PS fluid rather than the Honda stuff, simply due to price. Well, I had to replace the pump 6 months down the road so I never really saved any money. Obviously a power steering pump is easer to replace than a transmission, so you can bet there's no way in hell I'll ever put anything but honda fluid in a tranny, manual or automatic. But that's just me.