As the number of motor vehicles continues to climb, a large number of businesses are also targeting the oversized cake in the automotive supplies market. However, the quality of its products is also mixed, or it is purely a concept of flicker. There are numerous products such as various anti-wear agents, cleaning agents, and repair agents. Some auto repair companies are eager to sell various kinds of additives to vehicle owners in order to maximize profits.

Maintenance experts said that regular manufacturers of anti-wear agents and repair agents have a certain repairing effect on some already worn vehicles. Adding unqualified additives may cause changes in the properties of lubricating oil, resulting in reduced efficiency of lubrication systems and deterioration of oil products. Increase mechanical wear.

Brake Fluid: Manufacturers generally require replacement of 50,000 kilometers or so, but there is not much problem with the brakes, and the brakes do not have to be replaced if they are not abnormal. Engine oil: The foreign engine oils are basically changed to 10,000 kilometers before being replaced. Domestic manufacturers generally advance the replacement cycle to 7,500 kilometers with poor domestic road conditions, and now reach 5,000 kilometers in advance. However, as long as the oil is clear and the oil level is not lower than the minimum level indicated, the replacement of the oil is not so frequent without special circumstances. Steering booster oil: Steer booster oils do not need to be changed frequently. Dealers also recommend that 100,000 kilometers be replaced once, without replacement, there will not be any safety hazards.

Oil replacement is a "professional" recommendation that repair shops do more when doing car care. Oil products should not be replaced, not only to listen to their opinions, but also to have their own understanding.