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<p>[QUOTE=&quot;desertgem, post: 2586382, member: 15199&quot;]Any hydrocarbon such as olive oil or any non-synthetic lubricant oil, will breakdown into organic acids as aging or rancidification occurs. Makes for great cheese&nbsp; taste , but&nbsp; it should increase in potency due to the stronger acid effect. One ancient coin &quot;cleaner&quot; once wrote he didn&#039;t use olive oil until it had been rancid a year. It would be interesting to see how much the pH changes over a year or more. If it was just the lubricity,&nbsp; non-synthetic neutral oil would work as well, such as clockmakers synthetic oil. I edited to add that this is a general answer as oil vary in natural as well as blended oils.[/QUOTE]</p><p><br /></p>

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