That seems like you really know your thing kaiser haha, it's exactly that type of foam fine bubbles that you are talking about.
EDIT: Yesterday fell asleep after checking the coolant in the evening after engine cooled down haha, anyways, yesterday evening checked it and the expansion tank was empty, I think that after the engine ran hot yestersay after refilling for the last time it pushed all the air out of the system and after it cooled down it left the expansion tank empty, anyways, topped it up to normal again, ran the car for about one hour today, let it cool, and the level now is at nornal, also, it shows just very small amounts of leftover dirt in the coolant after doing all those flushes and it's normal since the coolant flush solution is doing it's thing I guess.
Last edited by Rsnail; 15th May 2019 at 12:13..
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