In this paper, the authors seek to identify the major differences between the combustion of several market available winter grade diesel fuels to determine the best option with respect to the combustion parameters (ignition delay, peak pressure, rate of heat release, peak cylinder temperature etc.) and overall efficiency of the process. To do this, the pressure traces and pollutant emissions are recorded at constant speed and various loads. A correct interpretation of the pressure trace is essential for understanding the phenomenon inside the engine. The results showed that there is a difference of approximately 13.8% in terms of peak engine power, 13.7% in terms of torque, 68.1% in terms of CO, 14.1% in terms of CO2, 4.9% in terms of NOx and 27.8% in terms of HC. Based on the obtained results, one can identify the optimum solution in terms of available diesel fuel.