I am not a lubrication chemist, but it seems to me that there has to be something seriously wrong when chemical additives separate out and settle to the bottom of an oil container.
Remember when people pointed to oil additives that contained PTFE and said, 'If it says you have to shake the container before adding, don't buy it.' Well, if I have to shake a bottle of oil to mix whatever chemical additives are in the oil, before I put the oil in my car engine, I am disturbed.
Heck, I remember when my Saturn new car dealership was selling oil additives containing Graphite. I bought a bottle and put some of this oil additive into motor oil, and left it for several months undisturbed in a clear sealed glass container on a garage shelf. The graphite never settled out. Seems to me that big oil companies can do as well.