Hope someone can help me, I have just brought a Cox International 0.049 engine (first time using a IC engine in any type of RC model). Now there web site says to use a fuel mix off 25% Nitromethane, 20% Castor Oil and 55% Methanol. They also say it is best not to use synthetic oil as it can shorten the life of the engine.
My question is is this correct, and is there a synthetic oil that will work for most if not all IC engines or should I test and make up a fuel mix each IC engine I use?