Wear reducer and its use precautions

Wear reducer is a relatively new lubricant additive, such as TMT made in the United States, TCL made in Japan, and 101 made in China. Its function is to reduce friction resistance, reduce mechanical wear, reduce energy consumption and extend engine service life.

Wear reducer can be divided into two categories: non - oil soluble and oil soluble. Non-oil soluble wear reducer molybdenum disulfide, graphite, particle diameter of φ0.05mm- φ0.5mm, can maintain a stable dispersion in the oil. Oil soluble wear reducer can dissolve in lubricating oil, more kinds, commonly used phosphite dioleate, octadecane amine, borate esters and so on. At present, most of the canned wear reducer on the market is the mixture of the above substances and low viscosity good lubricating oil.

The mechanical friction loss of the engine accounts for about 7%-10% of the combustion energy, in which the cylinder piston group accounts for a large proportion, and the lubrication state is complicated. Due to high temperature, high pressure, gas channel, rapid speed change and vibration, critical lubrication is inevitable, which is the main reason for the piston assembly and cylinder wall adhesion wear and abrasion. When there is critical lubrication, the wear reducer can form an effective lubrication film, covering the metal surface, so as to reduce friction resistance and prevent wear.

According to experience, the following points should be paid attention to when using wear reducer:

A. It should be used with low viscosity and good lubricating oil. On the premise of ensuring normal engine lubrication, the lower the viscosity of lubricating oil, the better. High viscosity is difficult to form effective lubrication film, resulting in abnormal engine wear. Although the price of good low viscosity lubricating oil is higher than ordinary lubricating oil, it is cost-effective from the point of view of extending the service life of the engine.

B. The dosage should be appropriate. The main components of wear reducer are molybdenum disulfide, graphite, octadecane amine, phosphite dioleate, borate esters and so on. If the proportion of these substances in the lubricating oil is too large, it will cause the combustion chamber carbon accumulation to increase. This kind of carbon is relatively loose, and it is easy to form a filamentous carbon between the central electricity and the side electricity of the spark plug, so that the spark plug short circuit. There was a Tianjin Daifa van, due to the use of excessive non-oil-soluble wear reducer (more than 3 times the normal use of 4 times), the time is not long, the back and side gap of the piston ring was filled with the residue of the combustion of wear reducer, so that the piston ring lost elasticity resulting in cylinder pulling accident. Each manufacturer has printed detailed instructions on the product packaging, which should be used correctly with reference to the "instructions". Some advanced lubricating oil, also known as energy saving lubricating oil, has been added with wear reducer, the use of this lubricating oil should not add wear reducer, so as to avoid unnecessary waste and cause adverse consequences.

C. The use effect is related to the maintenance and application of automobiles. The effect of wear reducer is closely related to the vehicle's technical condition, maintenance quality, driver's technical quality and road condition. When the technical condition of the vehicle is good, the maintenance is correct and timely, and the driver's quality is good, the use of wear reducer is not necessarily very large in terms of fuel saving, because the potential of the engine has been well played, which is a normal phenomenon. For the general vehicle fuel saving effect is more obvious, but if the technical condition of the vehicle is poor, the driver has serious bad driving habits, the fuel saving effect is very poor.

Reduce mechanical wear, prolong the service life of the engine in a short time is not easy to show, only adhere to the use, persevere, the effect will be obvious. The wear reducer has good continuity. Even if it stops using in a short time, the lubricating film attached to the metal surface can still play a good role. Generally only in the spring, autumn seasonal maintenance can be added.

D. Not suitable for two stroke gasoline engines. Non - oil soluble wear reducer is not suitable for ordinary two - stroke gasoline engines. Because the ordinary two-stroke gasoline engine uses "mixed oil" (gasoline and lubricating oil mixed in a certain proportion), the lubricating oil after the combustion chamber, the carbon accumulation formed by the residue of the wear reducer will cause the spark plug electric short circuit, the carbon accumulation increases, and it is easy to cause the engine deflagration. Even oil soluble wear reducer should be used with caution, so special lubricating oil should be used for two stroke gasoline engines.