Fuels
Many problems can take place when using inferior quality nitro fuels.
We often get cars to tune, and just by placing good quality nitro fuel in them, they run perfectly. When breaking in your nitro engine you will be using a lot of fuel, because of the "rich" fuel settings that are needed for this process. When your car is running out of fuel, the fuel/air mixture will lean out drastically. Because of this you should avoid letting the engine rev up to high RPMs. This could damage the glow plug, and create unnecessary over heating of the engine.
Make sure you keep the cap on your fuel bottle tight! If you leave the cap loose on the bottle, even for a few days you should throw away the entire bottle of fuel. This is because one of the major components of the fuel is methanol. Methanol will attract moisture from the air and suck it into your fuel if left in contact with air. Methanol also evaporates out of the fuel, meaning you will not have the correct mix of components in your nitro fuel. Uncapped fuel will also get dust and other containments in it that will harm you engine.
Keep the fuel out of direct sunlight.
Low quality fuels will create a number of different problems for your engine. There are brands of fuel that do not use pure nitro methane. They use a low cost blend of nitro methane and nitro propane. If your fuel is not a blend of both castor and high quality oil, it’s highly recommended that you do not use it. Simply put, cheap fuel will cause a lot of problems that will make your experience a dreadful one.