In this study, the mixture of bioethanol which is used in the engines with sparkling system and supposed to be used in them in future with water and its features such as density, low heating value content of the water, carbon, hydrogen sulphur and hydrocarbons in machine. As mixture fuel E0, E1, E2, E3, E4, E5, E10, E15, E20, E30, E40, E50, E60, E70, E80, E85, E100 which consist bioethanol in % 0-1-2-3-4-5-10-15-20-30-40-50-60-70- 80-85-100 volume. According to the results of the experiment the densities of the fuels increased. We have observed that the amounted the watering fuels has increased because of the future of bioethanol water capturing low heating value has calculated in at the fuel E85. For E0 in fuel E100 the heating value has decreased %35. The highest carbon value calculated in fuel E5 mind this value has decreased when it has come to E100.The amount of sulphur has increased when it has come to E100