Anything in the upper cylinder likely gets incinerated during the compression stroke (that's the very upper upper part of the cylinder where the combustion takes place), the particles in CSL fill in surface imperfections all along the cylinder wall including the lower cylinder wall not directly exposed to the extremely high combustion temps. The lower cylinder wall is shielded from combustion temps by the piston.
Originally Posted by Garak
What would he gain out of that? He's got a car that's served him over a reasonable lifespan. Any excess money spent on additives or even expensive oil is really flushed down the toilet. Has any formulator here suggested using it with each oil change? Here is one mention of it I found fairly easily by Mola.