No arguement from me Stan, just opinion. I'm plenty satisfied that there are different types of oxidation, the most obvious, being pulling out somethng that's been in the back of a dark drawer, that has rust on it. As a protectant, not lubricant, oil has the role of resisting the formation of the wrong type of oxides? I'll go with Dr Gaddy on this, but at the same time, a remaining question is, why aren't original colors, common place. Extended period of time? Some of us might have an example or two of acquiring something that was ninety years old, and is now fifty percent older. Whatever causes patina, seems to be a slow process?
Again, I'll go with Dr Gaddy on this, but visual changes due to oxidation affect most things around us. How does this one process, without strict controls, escape untouched? I have no skin in the game to perpetuate wives' tales. If I am not mistaken, the science says a steel/iron surface needs to have a hundred percent coverage of certain oxides, to be able to resist the formation of additional oxides.