Adam,


To some more experienced people in this forum, seeing a certain statement in a post, does make its remainder 'illegible'; as did the 'Cruel Power' statement in yours.

It seems to be a tendency to blame the first mistake one sees for the entire problem.


As Jan Karlsson (JAKA) wrote, there are synthetic oils out there that CAN be used in non-ring engines.
Jan is talking about Motul Micro, Sachs Aerosynth II/III and Sachs Aerosave, which have lubricity that even exceeds that of castor oil.

These oils are not marketed in the USA and those that are, like CoolPower and Klotz, are inferior to castor oil by their own admission (read the tech notes).


The only US available lube which does excel is [link=http://www.cooperfuels.com/airfuel_2.htm]Cooper Fuels[/link] ester base synthetic.


But all those synthetics I mentioned still have a flash-point which is much lower than castor oil, which means even with their great lubricity, they will offer less hot protection.


Good old degummed castor oil is still the only lubricant for extreme conditions.