The red 3-in-1 is a perfumed kerosene diluted motor oil.
It was meant for use by people who couldn't tolerate the
yucky sulfur smells of oil... wanted something pretty.
It was used mostly for unsticking squeaky door hinges, and
old warded locks. It got used on way more than it should
have.
When the kerosene eventually evaporates, the old thick
base oil remains... which seems pretty thick and gummy.
The blue 3-in-1 oil is good... but way too expensive for
what it is. You are buying the name and the metal can.
-Chuck Harris
EricJ via Groups.Io wrote:
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There's a specific 3-in-1 that does not gum up. It comes in the blue bottle. The stuff in the red bottle will gum up and get sticky over time, the stuff in the blue bottle won't. I learned this from antique desk fan guys.
--Eric
