What fuel treasure works?

If fuel treasure chooses, Feishengda, Jielishen and valet can do it. The role of fuel treasure is as follows: 1 Automatically clean the fuel system of automobile engine, remove carbon deposits and save fuel, with an average fuel saving of 2%; 2. Keep the fuel nozzle (or carburetor), intake valve and oil circuit clean, and the combustion chamber produces a small amount of sediment; 3. Tested by the environmental protection department, the tail gas emission can be significantly reduced, and HC and CO can be reduced by about 50%. It is an environmental protection product to reduce automobile emission pollution and improve the atmospheric environment.