Solved

0 fuel in pit

If i put 1l of fuel in pit, when the car make the next pit?
Example
Start- fuel of 18 laps
Stop 1- 0 laps
Stop 2 - 18 laps

Race 35 laps

Hi Gabriel, I'm not sure what you mean.

If you're trying to speed up your pit stop time by not fueling the car, it won't speed up the pit stop.

Ok, that was my idea

I don't get why you would want to. The amount of time you would lose carrying that amount of fuel on the first stint would massively out way any time saved on the pitstop anyway. It would be a massive disadvantage.