well, from the sound of it, you may have a water/gas/oil mixture in your motor 
running fine? blowing smoke? try changing the oil, see what the rest of it looks like. Other breather caps have it?
I did an oil change I wanna say 2k ago ish. It runs kinda rough, the exhaust is only pouring out the driver's side muffler, the pass side is releasing very little exhaust. Both of the breather caps on the valve covers are leaking...
