SynLube is, technically, a lyophilic sol. That is to say "This is a colloidal state where the suspended particles have a strong affinity for the suspending medium (liquid or gas) and therefore do not separate or settle out." If the colloids were not attracted to the surrounding medium and tended to settle out of suspension, the mixture would be called lyophobic.
Colloids are extremely small particles that are invisible to the naked eye. To be seen clearly, a 400x microscope is required. The PTFE particles are about 1 micron in size. By way of comparison, red blood cells are 7.5 microns. The graphite and synthetic moly colloids are equally small.
Colloids account for about 1/3 the volume of the oil and do most of the actual lubrication work because they have a polar attraction to the engine parts or they are embossed into the surface of the metal under great pressure. Either way, they are the first layer of lubricant protection and do not drain to the oil pan. Consequently, no dry lubrication condition ever exists in a SynLube-protected engine.
I have had a sample of SynLube in a clear bottle sitting on a shelf at home for weeks and there has been no settling whatsoever.