Feature: Multiple different tanks

[nicolopozzato]

Hi, I have a car with gasoline/petrol with a GPL (LGP) system, so I would like to enter both the fill-up. I normally put a full tank of GPL/LGP when it's almost empty, and I keep the gasoline/petrol tank between 1/4 and 2/4. So I would like to be able to add another tank in a car to track different fuel type.

So after that i can see the km/l for the gpl/lpg and a different km/l statistic for the gasoline/petrol.