I filled the new truck up for the first time friday night. I made a trip to the beach. Its about 140 miles. around 90 miles from where i filled up. When i got to the beach the girl that was with me goes i hate you, we drove all that way and your gauge is still on full. I put 28 gallons in it total and im not sure how big the tanks are on these things. Anyways i know that that was too good to be true even at 22.7 MPG. So where do i start. I dont think it would be in the gauge itself but rather in the tank, correct?