I have started making my own fuel as all ingredients are available to me free. I am currently flying with a OS .46 DF, Supertiger G2300, and a OS .61 four stroke. I am presently using a blend of:

-16% refined castor oil ( my understanding is there are 2 types, blown castor which is very thick in Viscosity and refined castor which is a lot thinner in viscosity)

-3% synthetic Turbine oil

-10% Nitro

-71% Methanol

This brings me to the questions,

Is the castor info I have correct, and is the refined better to use than the blown?

A very good friend and reliable source told me that all castor was not good to use as it did not have very good lubricating qualities. Previously I was always told Castor was a wonderful lubricant as well as a good rust inhbitor. Is this new info true?

Thanks in advance for all the help.

Doug