Wiswind, I agree with you. It would appear that the Ford Premium Power Steering fluid is actually just Type F ATF. I've run Valvoline PS fluid for a long time with no problems, so I'm not really worried about any damage, but I have to admit, my spec is not listed on the back of any PS fluid bottle I could find at my local store. There were statements like "Compatible with Ford, Chrysler, and GM vehicles" but that's about it. Like I said, I'm not worried about the previous fluid damaging the system, because it works great, but I feel better knowing the proper fluid is now installed and it is still very clean, bright, and red (just checked it an hour ago). I'll look into that Redline, though, if I experience cold weather problems. I've always had good luck with Castrol products, so we'll see.