Looking for environmentally friendly lubricant

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??? Care to explain, please?

Sorry for the delay.

It was a reference to the fact that everything we put in our environment can cause problems.

Bunker number 5 is a very thick petroleum product that is used in some industrial plants for steam generation. The type of thing that pollutes our oceans when a tanker breaks open like the Exxon Valdez.
 
uh, KY...?
 

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