Well, I wouldn't have the first clue what it is. But, in reading this forum it sounds like perhaps everyone is not on the same page. It sounds like some people are trying to determine what product you used that caused it (dawn wash, the oxidation remover that turned out to be a cleaner/wax, clay, or whatever). But to me, it sounded like you have had this problem since you've owned the car and that the clay, dawn, and cleaner/wax were all unsuccessful attempts to remove it. So, please clarify this. Which one is it? Thanks!
And just an aside, it will probably help everyone if you are as specific as possible in your first post. That will help some of the experts here diagnose your problem. Otherwise, they have to guess what kind of buffer you used and what sort of products you tried. From your first post, it sounded like you were Mr. Aggressive with a buffer and oxidation remover, but now we know it's a very low-speed random orbit buffer and some cleaner wax (actually, I thought you meant the oxidation remover came with the Wal-Mart buffer, and I was thinking "Oh my gosh!" as I imagined what sort of Turtle Wax rubbing compound type product would come free with a $20 buffer). It's no biggie, though. It will just help people to assist you. :wavey