Lubricating oil additives common sense

At present, there are many kinds of additives on the market, and the price is different, which often makes the purchasers prohibitive. This requires the first understanding of the role of additives, in order to do the correct purchase.

Car care products in the most important variety of automotive lubricating oil additives, the United States before the 2020s, lubricating oil rarely use additives, from the 2020s, especially the 40 to 50 years of the new design of engine and mechanical equipment working conditions are more and more harsh, it requires lubricating oil under high load conditions with good high temperature and low temperature performance, Mineral lubricating oil extracted from oil refineries in the past, that is, the oil extracted directly from petroleum, has been unable to meet these requirements. Therefore, lubricating oil additives have been greatly developed. Adding chemicals with special functions into mineral lubricating oil as modified additives makes lubricating oil develop with greater freedom, so the application of additives, Opened a new era of modern lubricating oil.

Lubricating oil additives generally have five categories, namely, detergent, dispersant, viscosity index improver, anti-wear agent, antioxidant. In order to further improve the performance of lubricating oil, companies continue to introduce new additives, such as rust prevention agent, metal deactivator, anti-foam agent, emulsifier, demulsifier, adhesive, point reducing agent and synthetic sealing expansion agent. Lubricating oil additive is an indispensable part of modern lubricating oil. Although the amount of additive is small, it plays a decisive role in improving the performance of lubricating oil and meeting the working requirements under various specific conditions.

Based on the actual use, people often hope to obtain additives with excellent comprehensive performance, which requires the addition of a variety of additives, that is, the use of formula technology or compounding technology, a variety of additives through the appropriate preparation process to produce a variety of additives with excellent comprehensive performance and wide applicability of composite additives, development of a good additive formula is not easy, so far, The quantitative relationship between additive quantity and performance has not been established, and the use of additives mainly depends on experimental results. There are synergistic effects between additives, which can be positive or negative, so it is a difficult task to research and develop new compound additive varieties.

In the process of purchase, you only need to pay attention to the following matters.

1. The manufacturer's trademark and bar code, to see whether there is the certification of the authority of the department, such as ISO-9002 and other international quality standards certification, to identify the additive brand purchase.

2. Choose moderately priced products. The price of additives varies greatly. Two different brands of similar additives, such as the price gap is not big, often the technical content of the product is basically the same, the difference is only the market positioning problem. If the gap is wide, it often indicates that the gap in technical level is large, and the buyer can choose according to the need.

3. Use experience. In the history of additives, the use of experience is indeed the most important, if you do not use additives experience, can consult friends or can collect more information to learn, because in any case, to protect their own vehicles is the most important.