Did you know? You can refuel your aircraft without having to go to the weight and balance menu in MSFS. Search “Repair and Refuel” in the key assignment search box and bind an unused button/key (such as Shift + Q) to refuel your aircraft to 100% capacity.
You can also use this to restore any engine damage or hot start in the case of a turbine aircraft.
You can do this either before your flight or while you are flying.