Periodically I have to add brake fluid. I always figured there was a seeping wheel cylinder but have never been able to pin point it. So anyway this August I was up in Spokane and the pedal felt funny so I figured it was time to add fluid. It was almost dry and while I had the floor board up it occurred to me that the master cylinder is right next to one of the exhaust pipes. It's a fruit jar type master and I think it might be boiling over. Is this possible or likely?