Adi
In the strategy tab my drivers always suggest a 2 pit stop race, but all my tyres show they last for equal amount of laps, so for my next race, my drivers suggest 2 stops, but each grade of tyre says its good for 6 laps, and it is a 26 lap race why is this so?
Surely each tyre should have a different value for lap duration,?
Ok.... what the driver suggests and you are able to do can and in most cases be 2 different ball games.
Based on your test laps results(tire ware), you need to choose the best suitable compound for the next race. I suggest downloading the "Tire Calculator" from the google's play store to help you out.
The screen you're talking about is used for your stint strategy. Use the "+" to increase the lap count you want to do in each stint. As you do this it automatically calculates the fuel it will take to go that far.
Grey box: the # on the left represents the # of laps you've allocated in your stints, the # on the right represents how many laps you require for the upcoming race.