Why isnt molten wax a good solvent for displacing other oils? Is it just a volume thing?
Also, the amount of disolaced oil and crud is trivial compared to the large block of paraffin.
I’d like to second the notion of this being a chemistry vs physics question, but I’m really leaning toward fluid dynamics (engineering?).
I suppose if you could sonicate the chain in molton wax for some time, this could concievably work. As it is, it takes several passes of soaking with the much lower fluid viscosity mineral spirits to get the shipping grease out. Sonication in refluxing solvent would surely be faster but I lack the equipment to execute this safely at home.
Anyway, I think the answers to your question lie in surface area of the chain components (nooks and crannies) and in the differing surface tension and viscosities of the substances in question.