摘要:The most desirable effect of motorization development is obtainment of high performance power units. Ecological requirements, however, and exhaustibility of the earth natural resources limit the possibilities of self-ignition engines. The study presents analyses of power and torque of a self-ignition engine fueled with mixtures of diesel and fatty acid methyl esters. The tests show that application of a biocomponent additive to diesel fuel slightly reduces the value of power and torque of the tested vehicle. Moreover, as proven by other tests, application of such mixtures causes an increase in the number of components in the exhaust gases and emission of sound generated by a power unit. The study shows only some of the tests performed to reflect significant performance parameters of transport means.