OBD Car Doctor Pro - How much you can do nowadays with a Bluetooth adapter and a simple smartphone app. If your car supports this connectivity, you can easily establish a connection from your smartphone, and to monitor not only the amount of fuel, but also for the overall condition of the car. Define failure or other damage should be easy, all the information will be displayed as detailed as possible. To list everything that supports this application is too long, so download it and see for yourself.