Quote:
Originally Posted by ForcedInduction
You sure that was algae and not oil?
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think of a rock that has been underwater till it get a layer of slime on it, then taken out of the water and allowed to dry. that thin membrane that is left behind is what appears to be in the cooling system. it looks very dark, almost black, byt when smeared on a light surface is green. I don't believe it is oil and I have not had any oil droplets in the bucket when I drain.