Total fuel consumption by trip

Hi Friends,I am from India. Here drivers are infamous for stealing gas. The usual method is taking out the gas inlet to engine, lead it to a bottle/container and the start the engine engine. A gallon flows out in less than a min.With this in mind, I am looking for a line graph showing total fuel consumption over time (say 1 sec/5 sec interval). Coz when they steal fuel, it'll show as a very steep line over a small period of time.Which feature in this app will enable me to see this?Thanks in advance. KB