The hydrogen-oxygen carbon cleaning machine produced by our company is used the above principle to generate hydrogen and oxygen in the electrolytic cell, which is cooled by a cooling device and processed by a safety device, and then sent to the automobile engine through a hose to remove the automobile by the high-efficiency permeability of hydrogen molecules. The engine engine carbon deposits removed, improve combustion efficiency, restore the horsepower and torque set by the original engine, and achieve the purpose of saving fuel and saving energy and reducing exhaust emissions.