I have been doing experimentation professionally on ethanol as a fuel both in 2-stroke and 4-stroke applications. The recent years I have been working with biodiesel and raw materials for biodiesel so let me tell you this:
Castor oil or any other bio-oil is not suitable as a good lubricant in a two-stroke system. This is due to that these oils naturally have a too high content of inorganic salts which causes deposits inside the engine. And the deposits always occur where they should not be; on the piston rings, the cylinder head, the exhaust gate, the inner skirt of the piston etc. There is only two ways out of this problem. The first one is to chemically alter the bio-oil into full ethanol solubility. The second one is to add the necessary additives to the processed oil. But on the other hand - then you will have a first class lubricant, micsable in all proportions of ethanol and/or gasoline. A commercial success ? No. How to process the oil ? Ask me.
jan-anders.warnqvist@glocalnet.net
