Trav had mentioned having similar observations a few years back. As a result I wouldn't use the product again either.
That Liqui moly crap does the same thing in the engine and it does not mix again once it has fallen out. This is bad stuff.
MoS2 has never be good. Regardless of who.
His uncle, hexagonal boron nitride was always better. For engines and for gears.
But take care, use solid stuff adds
in engines first, ~400 miles after oil change. Put in the hot oil, let run 5min in idle, ensuing drive relaxed 15min. Done.
This is the right way to do it.
Dosage? Always ignore makers directions and put only max. 1% of oil volume. Then all becomes works fine.