The only way they will ever get it to work in any sort of way is with something I saw a few years ago when buying mouthwash of all things..
When allowed to settle one of the liquids rises up to the top. When shaken it mixes in tiny little balls. Obviously the two liquids in it have different physical attributes and viscosity but they are both liquids and not filled with anything.
That IMO is how this needs to be done. Not with crap being put into the coolant.