Duraglo - contains 9% E.D.L. (synthetic oil) and 6% castor oil plus up to 40% nitromethane. It exhibits many of the best qualities of both synthetic and castor, making it a very forgiving general purpose fuel. It is also particularly suited to installations where the engine is inadequately cooled e.g. in some high powered helicopters, boats and buggies. Please note at present we are unable to ship fuel