Well, I've went to all the local parts stores and no one has any castrol. I asked the guy at napa if he could order some for me so he looked and said that they don't have it listed. He then asked me why it has to be castrol dot 4 and not any other dot 4. I said good question and I'll find out. So why does it have to be Castrol? He said that the fluid is so regulated that there really can't be much difference between all of the brands. So what is so special about it? Thanks in advance....again.....................Jason #5903 [Non-text portions of this message have been removed]