The article focuses on detection of fuel consumption in cars with the spark-ignition engine aiming to determine the most accurate way of daily-use fuel consumption through evaluation finding. To achieve relevant outcomes, different routes underwent experiments in multiple consumption modes. In particular, these encompass four circuits varying in length, speed limit, intersection number with significant waiting time and the route ratio city/highway. Each segment saw three measurings in terms of different consumption forms – standard, economical and dynamic. Apart from that, fuel consumption detection also takes into cosideration possible deviations from consumed fuel when automatically switching off the fuel pump pistol. Three methods contributed to achieving the findings; i.e. quantification method, the technique of data subtraction from the on-board computer (On-Board Unit) and method of amassing data from a phone application. Ultimately, compiled tables and detailed diagrams show outcomes demonstrating the most convenient way and approach of measuring fuel consumption for daily-users.