In order to implement fuel control within GPS tracing solution, one can use 2 basic approaches: analyze info from the CANbus or use additional sensors. CANbus holds info from standard sensors, it easy to connect to it but info can be used only for general understanding of fuel usage on a vehicle, as inaccuracy can reach 10-15%. Special fuel sensors take more time for installation, but accrued data can be used for precise driver style analyzing, fuel theft prevention and as a reliable source of info for general fuel saving procedures.