Important Notes: The fuel gauge will continue to work however the distance to empty will not be accurate. There is no way to update the fuel tank size for the distance to empty to be accurate. OEM sending unit & float are reused because the S&B Tank is taller the gauge will stay on full for the first 8-10 gallons. The nozzle at high-flow fuel stations(truck stops) will not be able to fill automatically. Do you have an Auxiliary Fuel Tank? Read why using these with our tanks will void the Lifetime Warranty.