greaux... thanks SO much for that link. It's great not only because I now know how these work, but I think I may try the fluid replacement. I may also try and do the Hayden 10" again if I can find a way to get it between the condenser/radiator without removing one of them.

Would you happen to have the p/n on that 10,000 cst oil? I looked through the thread but couldn't find it.

Thanks!!!