Car Fuel Tracking System  monitoring through GPS vehicles tracking system informs where, when and how much fuel was filled into the tank; it avoids the theft and manipulation of fuel and consequently reduces the operating costs of transport. Information on raising or lowering the level of fuel is transmitted from fuel sensor attached to GPS vehicle tracking system with reference to location and time. The volume of fuel is determined by calibration table stored in the memory of vehicle tracking system. The algorithms for identifying refills and its volume are quite complicated and these algorithms are also integrated in fuel monitoring server software. After analyzing data and eliminating the sudden fluctuations due to rough road jumps, the right output for report is generated by the system.