Just recently got all 4 of my calipers replaced under warranty due to them being stained from brake fluid (previous owner probably tracked it). See thread:
Calipers have weird "stuff" on them...
anyway, I am going to be changing my brake fluid now and I want to know if any leaks from the bleeder valves, what can I rinse it with to make sure it doesn't stain the clear coat of the calipers again?