Question? My 2016 Ford has a computer that reads fuel mileage and distance to empty. Reading the instructions on the Auxiliary Diesel Fuel Tank Installation kit it warns, "If the gauge does not move off full when traveling it will go to empty after you have traveled the range of the full tank. To prevent this from happening you can use the manual shut off valve or install an in line pump to control the flow of fuel so that the gauge will work more normally"
Anyone have any issues with their Ford F250 0r F350 with the OEM gauge not working properly due to the extra fuel in the auxiliary tank?