[mcbota]

I had just bought an OBD II interface and I have installed Torque Pro on my smartphone. Having parameters like:engine load, boost, RPM, speed, throttle, voltage, intake air pressure, etc, I am not surewhich one fo these I have to display and follow for the best fuel consumption? Which are the values of these to keep inside it, for the best consumption perfomance, considering an Audi diesel car? Thanks!