Hi guys, came here to discuss my fuel level “possible issue”, I just bought a 25 2500HD, 6.6 gasser, and wanted to see how accurate the gauge was. Knowing I have a 36 gallon tank, that is 9 gallons per 1/4 tank. I had just over 3/4 tank of gas so I went to fill up thinking I will only need 8-8.5 gallons to do so. It took just over 11 gallons. Is that normal? Will it get more accurate the lower the tank gets maybe? To me, 3 gallons is a lot to be off, no? What are your experiences?