[R-390] Marvel Mystery Oil Does Turn To Gum

Sun, 27 Apr 2003 21:31:16 -0700 (PDT)

I had something similar happen.  I have model aircraft that have glow-fuel
engines on them.  Someone recommended that I use Marvel Mystery oil to lube
the engines prior to storage.  I had one engine that sat for about three
years.  When I went to turn it, it was so gummed up that it took significant
force to get it to move.  Poured some solvent into it and it freed up.  I
only use synth oil, now.

Cheers!

'73 de N2DXN
Bob
--- [email protected] wrote:
> I think some people in the past have recommended using Marvel Mystery Oil or 
> mixing it with another lubricant as a good way to lubricate an R-390A RF 
> Deck? I thought I would relate an experience I had with Marvel Mystery Oil. I
> 
> had a can of the stuff sitting in a cupboard for about 15 years. Some of the 
> oil leaked around the top of the can and after being exposed to the air for 
> 15 years it did indeed turn into some kind of sticky red gummy substance. It 
> would seem this is not a good indicator of the oil for use as a lubricant 
> exposed to air over a long time = 15 years or more? It looks like Synthetic 
> oil or grease would be the best bet for a long-term lubricant exposed to air?
> 
> 73 Todd Roberts WD4NGG.
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