A few questions about replacement fuel tanks from S&B or Titan for a 2021 CCSB 3500. I suppose same would apply to 2020 trucks..
The larger tanks hang down lower than the small factory tank, a couple of inches below the frame in at least one case. Both companies say that they have not had anyone damage one of their tanks because of this. They also say even with the larger tank, it is still not the lowest spot on the underbelly. Does anyone have knowledge or experience with that?
Both companies say that there is no way to reprogram the computer so it knows you have a 52 rather than 31 gallon tank. But it sounds pretty certain that the float for the fuel gauge gets more accurate as the fuel level drops. When the 52 gallon tank is full, the readout stays on full for a long time but eventually as the fuel level drops enough, the readout will also begin to lower. As the fuel level gets lower, the readout becomes more and more accurate. So a 52 gallon tank may read as full on the dash until it drops to the 31 gallon capacity of the OEM tank, but then start to drop along with the fuel level getting more accurate the lower the fuel level gets. So even though the tank may not be technically 1/4 full when the dash says it is, you would at least know that there is approximately 1/4 of the OEM tank capacity left. For this same reason, the readout for MPG and Miles to Empty would become more accurate as the fuel level gets closer to empty. Does it seem like I am understanding this correctly?
Thanks!
The larger tanks hang down lower than the small factory tank, a couple of inches below the frame in at least one case. Both companies say that they have not had anyone damage one of their tanks because of this. They also say even with the larger tank, it is still not the lowest spot on the underbelly. Does anyone have knowledge or experience with that?
Both companies say that there is no way to reprogram the computer so it knows you have a 52 rather than 31 gallon tank. But it sounds pretty certain that the float for the fuel gauge gets more accurate as the fuel level drops. When the 52 gallon tank is full, the readout stays on full for a long time but eventually as the fuel level drops enough, the readout will also begin to lower. As the fuel level gets lower, the readout becomes more and more accurate. So a 52 gallon tank may read as full on the dash until it drops to the 31 gallon capacity of the OEM tank, but then start to drop along with the fuel level getting more accurate the lower the fuel level gets. So even though the tank may not be technically 1/4 full when the dash says it is, you would at least know that there is approximately 1/4 of the OEM tank capacity left. For this same reason, the readout for MPG and Miles to Empty would become more accurate as the fuel level gets closer to empty. Does it seem like I am understanding this correctly?
Thanks!
