VP Racing Fuels has developed the perfect recipe for RTR engines and sport/entry level hobbyists. Master Basher 20 is a sophisticated blend of the right amount of oil with the right amount of nitro to provide your RTR nitro engine with insane power and extremely long life. Throw your worries out the window. With such a broad tuning range, Master Basher 20 is undoubtedly the easiest-to-tune fuel on the market. Couple that with an advanced multi-viscosity extreme pressure additive oil package and you have the ultimate RTR fuel and best of all.