FIELD: motor fuels. SUBSTANCE: composition contains 70-95% dimethyl ether, up to 20% methanol, and 0.1 to 20% water, minimum allowable concentration of methanol in composition containing specified concentration of water being equal or exceeding 0.5 water concentration minus 2.6 (%) and maximum allowable methanol concentration being equal or below 20-0.6 water concentration (%). EFFECT: improved alternative composition showing high Btu value. 16 cl
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