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re: Biodegradeable Oil

>Why did it die?  I assume oil got cheaper to produce and was refined
>to the point that it was very superior in performance.

Hi Bill,

	I seem to remember that the old caster bean racing oil had to be
changed after every race, so in "heat" events it got a bit pricey. And,
eventually petroleum based oil improved, lasted longer and cost less. I believe
that model airplane engine fuel contains caster bean oil; it is what gives it
its unique smell...both before and after burning:-)