I posted the same worry a few weeks ago, mine looked pretty much the same.
http://www.mazdarotaryclub.com/forums/showthread.php?t=37813
Got a few replies seems it could be normal?
I don\'t seem to be loosing coolant either, so still a little confused.
http://www.mazdarotaryclub.com/forums/showthread.php?t=37813
Got a few replies seems it could be normal?
I don\'t seem to be loosing coolant either, so still a little confused.


Hope it\'s not too serious.