The economy of energy carriers of an organic origin, toughening of norms of emissions of harmful substances with the fulfilled gases of diesel engines, and also restriction of issue carbon dioxide forces the majority of the countries to search for ways of decrease in danger of influence of thermal engines on an environment. In job [1] the analytical analysis of ecological-economic parameters of diesel engines with direct injection of fuel (DI - direct injection) and the divided chambers of combustion (II - indirect injection) is carried out. In diesel engines II, in connection with features of their design and course of working process, as motor diesel fuel it is possible to apply as pure vegetable oils (rapseed, sunflower, cotton, soya, linen, palm, peanuts, etc.), and their mixes with oil fuel....

       The lead settlement - experimental research allows to draw preliminary conclusions, that the methyl ethers of fat acids received from oil waste from preparation of foodstuff can be used as alternative vegetable fuel for diesel engines with direct injection and the divided chambers of combustion.