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Old 11-13-2008, 09:51 PM
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Pablo Pablo is offline
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Join Date: Dec 2007
Location: Duvall, WA PNW
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Default Re: Mixing Castrol r30 castor with synthetic oils

Just a couple thoughts. Most issues with castor oil and mixing are from fuel containing ethanol.....yes I know castor does OK with straight methanol and nitromethane, but somehow with gas/ethanol/castrol/additivized 2 stroke oil mixes, the oily faction gets weird. It causes stringers and weird junk in the combustion chamber.

The thing is, Castrol R20 is not straight has some very interesting additives, that make it a bit better with gas and alcohol, but it may not mix well with other oils.

Frankly I would get some straight castor oil from SIG or one of the other suppliers and carry on with your testing.....

Last edited by Pablo; 11-13-2008 at 09:56 PM.
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