Originally Posted by
Roelof
Stop the crap, your 2% castor is falling into nothing with your 18% oil and basically that is no fuel any competition engine will see. Any normal fuel with a large content of castor will give a brown to black color in any competition engine. And another thing, what is your experience with real onroad racing engines? The higher comperssion and the hotter combustions compared with any RTR engine is also making a difference.
You stop your crap with the fuel I use. I use Omega fuel off the shelf .with 2% castor oi. It isn't going to leave any brownish color in any nitro engine. I have been running nitro for 30 yrs. with no affect running castor oil. Low oil lube will burn any nitro engine up fast and cost you more money. Fuel is fuel It all burns. What really matters is the oil lube to protect the life of the engine.
You didn't bother to look at the facts! castor oil flash point 229C, nitro flashpoint 35c and methanol flash point 12C How can castor oil burn if nitro and methenol have a low flash point????????