Originally Posted by
Sport_Pilot
Well beans absorb heat. Yean not much, not sure which does better, oil or beans.
Just to clarify, I never said oil doesn't carry away heat at all. It does, just a minuscule amount. But the point is moot because some facts still just aren't enough to prove ones point.
edit: I'll just add - if the oil in the fuel had such a dramatic effect on engine cooling, the RC car guys' fuel would have a lot more oil in it than it does. Most RC car fuel is 20-30% nitro and 8-12% oil, which is usually all of mostly synthetic. What helps keeps them cool is the fatter needle setting due to the high nitro plus you get a higher volume of oil going through the engine because of the fatter needle setting.
All off topic, sorry for that. On topic - the more nitro you use in your fuel, the higher likelihood of more oily mess on the plane than using a lower nitro fuel.