This diesel FUEL SHOTZ installation kit can be installed in less than an hour. The unique system connects the auxiliary tank to the factory tank via the factory filler. The auxiliary tank keeps the factory tank full. When the auxiliary tank is empty your factory fuel gauge will move off the full mark. The system installs quickly and easily. No wires or switches to install. The system has rollover protection on the tank and on the factory fill neck adapter. Detailed Instructions are supplied with the Fuel Shotz installation kit.