The distance to empty (DTE) reading on GM trucks cannot be reprogrammed, so it will display approximately half the actual mileage remaining when using aftermarket high-capacity fuel tanks.
The fuel gauge will function correctly. When you fill your tank, the gauge will stay at "full" until about 4-5 gallons have been used. After that, the gauge will begin to move normally. GM trucks monitor for inoperative fuel gauges; therefore, in some cases, the truck’s computer may drop the gauge to "empty" to alert the driver, even if the tank is full. The gauge will return to its normal position once the engine is restarted. After the fuel level drops by 4-5 gallons from full, the gauge will resume normal operation.
The bottom of the S&B tank has more surface area than the original equipment, providing a greater fuel reserve when the low fuel indicator activates.
Please note that the nozzle at high-flow fuel stations (such as truck stops) may not fill automatically.
If you have an auxiliary fuel tank, please be aware that using it with our tanks will void the lifetime warranty.
