Abstract — With ever rising fuel prices and number of vehicles
on road there is an immediate need for fuel efficient techniques to
be implemented. Also there has been an exponential increase in
the number of cars on road, number of road accidents and
vehicle breakdown cases recorded. Finding effective ways to
achieve maximum fuel efficiency without hampering the internal
structure of these vehicles along with providing a response
system to combat mishaps is a challenging task. In this paper, an
android application is proposed which monitors parameters like
Engine RPM, fuel status, throttle position through an On board
Diagnostics (OBD-II) being able to help amateur drivers with
gear changing and provide assistance in case of vehicle
breakdown. The final goal is to assist drivers to achieve a better
fuel economy.