Why does the FSD Cessna 337 always start with full fuel?

[PilatusTurbo]

I love this plane, but with Air Hauler running or not, the plane always seems to have 557 lbs of fuel when I start the sim (full tanks), even if I leave it with 1/4 full tanks. I do have previous flight saved as my default.

Does anyone know why this might be? I've been getting alot of free fuel in Air Hauler. :ernae:

Thanks in advance