why does everyone on here think that all of hondas fluids are magical? Is it because the manual says so?? In my experiance and I dont claim to be an expert, honda fluids are no good! They admitidly screwed up the dual pump fluid for the first few years it was out. If you search the forum you'll also find that in the 05's they screwed up the antifreeze and have had problems with them clogging radiators. So why does eveyone say that you have to use z1 atf? who's to say that thats not screwed up as well? The book also says to use honda brake fluid! dot three brake fluid is dot three brake fluid so to me that is evidence that they just say that you have to use their stuff. I recently flushed my radiator since mine is an 05 and I dident want it to plug and it was already makeing a weird gurgling sound when turning. I figured honda had its chance so I use the 50/50 premix prestone universal. All while being paranoid because my honda owners manual says to only use honda. Its now a month later and I can tell you with absolute certainty that my gurgle sound is gone and that when the radiator turns on the water pump runs much quieter.