joe i had a greenish brownish coating after i ran a Redline mixture for a few months.... thing was it was copper and brass... no aluminum!!! wtf
heres another thing... i still have those corrosion tests goin... and there is NO residue on the cups... EVEN in a cup with straight tap water containing copper and aluminum.
did your residue feel like an oily/soapy coating?
ill take a pic of my tubes soon for you guys
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