Which cylinder is better, Ibn or Li Shen?

Ibn cylinder is better. Spray easily forms a low friction surface layer on the inner wall of the cylinder, which reduces the friction between the piston and the cylinder, thus reducing the friction loss of the engine. It can improve the efficiency of the engine, save fuel consumption and reduce emissions. Due to the complexity of Li Shen cylinder system, special maintenance and repair techniques are needed. If there is any fault or damage, more time and cost are needed for maintenance. Therefore, Ibn cylinder is better.