Hello, i wanna ask you something guys, i have set my fuel index as 5, and was following simbrief how much fuel i should have in plane, but when ever i fly i always run out of fuel, i use auto throttle on climb mode, managed speed, managed altitude, using 70kg/min of fuel at FL 330, do i do something wrong? i noticed at lower altitudes i use lower amount of fuel, as far i know the higher u are the lower fuel consumption is.