In the modern scenario of pollutant emission regulation, the next EU fleet-wide average emission target to be reached before 2021 for new cars, is 95 g CO2/km. Because of high hydrogen to carbon ratio, methane is capable to reduce significantly CO2 emissions, with respect to a gasoline or diesel engine of the same power output. Moreover, methane is potential fuel for large scale supply and it is characterized by high octane rating which can help in increasing engine efficiency by operating with higher compression ratios. The present work has been carried out in a research team in DENERG laboratory at Politecnico di Torino.