Two weeks ago I got a brand new L2501. The fuel gauge seemed to working properly at first when the tractor was delivered with the gauge reading half full. However now the gauge reads full even though the tank is only about half full. I've filled the tank completely full twice and seen this false reading both times after running the tractor for several hours and the tank was really only half full. I called and spoke with my dealer and spoke to someone who provided a reason why this occurring. He said the tank is designed in a way that the fuel gauge will read full until is reaches a point less than half full then the fuel gauge needle will move and then be accurate. Is this explanation accurate? Nothing I've seen in the owner's manual or online had this reason why it takes so long for the fuel gauge to be accurate to amount of fuel in the tank.