X10R fuel for diesel engines with compression ignition, in the running phase with a higher proportion of lubricant and ethyl ether (which facilitates the start). We mix it with products of the highest quality, we have proven that using only castor oil harms notably the performance and subsequent storage of the engine, therefore we use a 100% synthetic lubricant of the known Klotz brand with a proportion of 60% desmulcilaginated castor oil (degummed), I mean 40% synthetic + 60% castor, with this you get a much better lubrication, a much more efficient combustion without waste and Finally, less corrosion can store the engine for a long time no need to clean it internally as it is not gummed or corroded by oxidation, Amyl Nitrite is replaced by a product of higher quality and much less dangerous that is ethylhexyl 2-Nitrate (C8H17NO3) that confers a much more efficient burning of the fuel, increasing the power and regularity of the engine. Suitable for small displacement engines up to 1.5 cc. Composition: 35% -> Ethyl Ether 65º QP (purity 99,80%). 35% -> Desomatized kerosene. 19% -> 100% Synthetic Klotz Lubricant. 10% -> Demulcilated Castor Oil. 1% -> 2-ethylhexyl nitrate. Content of the container 1 Lt.