Does not contain acids, bases, an efficient, fast, without damage to the mechanical and rubber and non-blocking waterways, and can be effectively cleared within 10 minutes of ordinary car radiator and engine cooling system of the scale, rust, sludge and all kinds of dirt and long-term without serious fouling cleaning and rusty water tank can also be cleaned thoroughly, the water tank after cleaning by this product can cure boil water tanks, engine overheating, such as failure to improve the thermal efficiency and engine power water tanks, energy saving extend an Au machine life.