Since my owners manual says I can use power steering fluid OR Dextron II ATF,I use the ATF 99% of the time--the only time I use power steering fluid is when I find a can in a newly purchased vehicle,or its on sale for 98 cents a quart,or if its a vehicle like a honda that requires special power steering fluid--if you put anything else in a honda P/S pump,the seals literally dissolve--and even a junkyard pump aint cheap for a honda!.I've never had any issues with Dextron II in my GM trucks,no leaks or noticable difference in steering effort.I have found transmission stop leak works well in power steering boxes and pumps also,we used to reccomend it over power steering sealer at the parts store. /forums/images/graemlins/crazy.gif