Abstract : This final report covers a six year period of research conducted by the Engine Research Center. The objectives of the ERC are: (1) to train students in special areas of diesel research of interest to the Army and its industrial suppliers, (2) provide a source of consultation for the Army, (3) provide knowledge and research tools for solution of long range problems of interest to the Army, (4) provide solution methods for problems of immediate interest to the Army, (5) to identify and explore new technologies which have potential value to the Army. A brief account is given of how these objectives were addressed. Subjects covered are; faculty, facilities, publications, and research results. The research topic areas discussed are: engine modeling; combustion, emissions and fuels; heat transfer; fluid mechanics; diesel sprays; lubrication, mechanical design and materials, diesel engine, engine modeling, combustion, emissions, fuels, heat transfer, fluid mechanics, diesel sprays and lubrication.