"What's something we can sell for zee max profit?" "Let's take mineral oil and market it as a miracle engine lube additive, let's call it zMax because we'll make zee maximum profit from zis plan!"
It may not be all a scam. There is a user on here who got interesting results when running it. He cut open his filters before using zmax and got regular dirty oil. He then cut open filters after running zmax and it was thick, nasty stuff in the filter. It would sure be nice to get people to discuss those results without flaming and see if anyone can explain what exactly happened in that application. It did something but was it good or bad?...
Because, 1) unless you know the full sequence of events (which was not fully stated), 2) and unless you do a thorough analyses (not just a $25 UAO), 3) the full condition of the engine before and after treatment, you cannot make an educated assessment with any certainty.
No flaming, just the facts!