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Old 02-24-2020, 10:57 PM   #63
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Join Date: May 2010
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Default Re: Marvel's Mystery Oil

MMO consists of a naphthalenic rather than a paraffinic base. There is also a halogenated component. The combination of those two permits it to penetrate gummed up and oxygen linked polymerized parafinic oil deposits that stick valves, lifters, and rings.

The second part of it all is an ester oil content. (the 'wintergreen mint oil' you smell) Esters are superior lubes that are categorized as synthetics in the oil industry. That's why it works- solvent power plus synthetic lube.

Specifically, the ester methyl salicylate (wintergreen oil) is also an excellent polar penetrant for metallic oxides residing on the surface of metal parts.

I guess those three added together have resulted in it's reputation as one of the better 'snake oils'.
Mechanical engineering 101: If you put an adjustment knob, screw, bolt, or tolerance specs on something, some people will immediately fiddle with it. If you mark it DO NOT TOUCH everyone will mess with it.
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