Comment by throwaway201606

"Sure, but the difference between one particular formulation of mineral oils and another cannot possibly be that important to the formula."

Formulation matters and is very important.

A1 jet fuel, propane, regular 87 gas and vaseline are four different formulations of some version of mineral oil (petroleum).

Which do you want in a car you are driving? On your parched lips? In your plane engine? Coming into your kitchen stove?