I am intrigued by comments in the analysis forum about wear metals and other values that are attributed to the high cleansing action/potential in Redline oils. Even in engines that had a steady treatment of Mobil1, another oil purported to clean well, for multiple or many fills. How do we know this? How does it do it? How do we know when cleansing ends and it is new wear that we see in the results? Some of this just seems to be too unsubstantiated to be believable. I'm not discounting it outright, but I'd like to know more. Please expound.