Don't get caught at the side of the road with an empty tank even though your gauge says full. The fuel tank sender is used to measure the amount of fuel in the fuel tank and send an electrical impulse to the fuel gauge. If your fuel gauge is starting to give incorrect readings, it's possibly this sender.
Keeps fuel injectors and fuel system clean. Eliminates carbon deposits on intake and exhaust valves. Only 60% burns and 40% remains to lubricate. Eliminates sticky valves, improves compression, and dissolves harmful gums.