By the method of data collation, research into changes in life histories (ignition delay plus time of combustion) of the compounded fuel droplets (diesel fuel-biodiesel fuel (RME)-bioethanol), as well as diesel engine D-144 brake specific fuel consumption rates was performed and obtained results being compared to diesel fuel by an analogous manner. An optimum composition of the multi-component blend B30+ 7.5E demonstrating specific fuel consumption rates and droplet combustion characteristics very similar to diesel fuel was derived. In comparison to B30, a newly derived combustible blend demonstrated fairly improved emissions of exhaust gases. For low load mode: smoke opacity (-10%), NOx (-2%), CO (-20%), and HC (-12.5%). For average load mode: smoke opacity (-10%), NOx (-2%), CO (-22%), and HC (-14.5%). For high load mode: smoke opacity (-18%), NO (-2%), CO (-22%), and HC (-18%). 2010 Elsevier B.V. All rights reserved.