Articrider....what I mean is an analogy...

If I talk in Colombian Pesos... a FAI gallon would cost me about 14.000 pesos....if I buy a gallon of omega 5% nitro it would cost me about 45.000 pesos....and 15% about 68.000 pesos.... now go and think how would it be for a 20/20 fuel...

For us the USD is very unstable... but lets say about 2000 pesos for a dollar... and what you normally buy with a dollar (let's say a coke) you buy with 1000 pesos...so you have an idea how expensive is the hobby for the people in my country (about 2 times more expensive than in the usa)....and how expensive is fuel with nitro!!

Here in Germany I paid 37 Euros for 5 liters of 12% nitro and 22% castor oil....

The point is...Nitro is very expensive in the other countries.... Syntetic oils are not cheap....and castor oil is normally readily available and cheap...and maybe cheaper than in the USA....maybe not the best refinement quality, and may gunk more...but works...



Now going back to the original question....I was trying to point out...that yes...engines run very good with nitro...and the guy wants to know if the engine will run with castor oil and no nitro.... and I think that it will run ok, since the engine is a 4 stroke...he has to pay attention the maintenance...like checking the exhaust valve for carbon buildup....and use after run oil if the engine is going to be stored