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Comprehensive Analysis of Engine Oil Additives

2020-10-23 15:09:37  News

As long as you have bought motor oil, you will know that motor oil is generally composed of two parts, one is base oil and the other is engine oil additive. What kind of relationship do they have? How do they affect the quality of engine oil? In daily life, we often hear the classification of engine oils: mineral engine oil, semi-synthetic engine oil and fully synthetic engine oil. This classification method is based on the processing technology of the base oil used in the engine oil. In fact, engine oil About 80% is base oil, and about 20% is engine oil additive.

Relative to the types of base oils, you may be unfamiliar with oil additives in lubricants. Although base oils are very important, you should know that good lubricants are not good base oils that can bring 100% superior performance. Engine lubricating oil not only plays a role in lubrication, but also needs to bring cleaning, sealing, and anti-rust effects to the engine. No matter how good the base oil is, it cannot perform all functions in every aspect.

First, let us briefly understand the common engine oil additives:

Detergent

When the engine is operated at high temperature, the phenomenon of paint film (Vanish) and carbon deposit (Carbon) will be produced, which must be removed by the detergent in the engine oil, and its composition is metal salts.

Dispersant

When the engine is operating at low temperature, if it is not driven at high speed for a long time, so-called sludge will be produced. To prevent it from being generated, a dispersant must be added to the oil to evenly disperse the sludge in the oil to prevent the sludge from being deposited in the oil filter. On the valve push rod and piston ring, the lubricating oil path is not smooth and the unlubricated parts are chipped and worn.

Anti-Oxidant

Under the high temperature of the engine, the engine oil is especially easy to cause oxidation reaction with the air. After the engine oil is oxidized, the color will deepen and the viscosity will increase, thus increasing the load on the engine. At the same time, the organic acid generated after oxidation will also corrode the engine parts, so the oil is maintained. Oxidation stability is very important, especially in extremely high temperature turbo engines.

Anti-Rust Additive

In order to prevent the metal parts of the engine from rusting, it is of course necessary to add rust inhibitors. The ingredients of this additive contain a polar radical (Polar Radical), which uses the intermolecular polarity to adsorb on the metal surface to protect the metal from air and moisture. And rust due to salt erosion.

Anti-Corrosion Additive

Same as anti-rust additives, but the former is used to protect ferrous metal (Ferrous Metal) parts and the latter is used to protect non-ferrous metal (Non-Ferrous Metal) and alloy (Alloy) parts from corrosion by sulfur and organic acids .

Viscosity Index Improver

The base oil is limited by the nature of crude oil. Its viscosity index can only be improved to a certain extent by the processing technology, and then it must rely on the viscosity index improver. It is also because of the invention of the viscosity index improver that the oil with multiple viscosity can be produced.

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Pour Point Depressnat

Pour point depressant is also called pour point depressant. The so-called pour point is to measure the temperature of a certain oil when it starts to not flow, plus 3℃ is the pour point. There will be more or less wax in the oil. (Although the wax has been removed during the refining of the base oil, it still cannot reach 100%). Once these waxes become crystals and solidify at low temperatures, they will prevent the oil from flowing. In order to make the engine start smoothly in winter, it must Inhibitors are added to reduce the pour point, prevent wax from crystallizing, and adapt to cold weather.

Anti-Wear Additive

The so-called boundary lubrication (Boundary Lubrication) occurs when the engine is under high temperature and high pressure, that is, under the condition of high thermal expansion of the metal active surface, the oil film is squeezed apart, and direct friction between metal and metal is formed. In order to prevent In this case, it is necessary to add anti-wear additives. When the additives come into contact with metals, they chemically react, and a protective film is produced to protect the metals from wear when they are in contact with each other.

Anti-Foaming Agent

When the oil is repeatedly stirred in the engine, foam will naturally occur. Where there is foam, where there is no oil film, the engine will lose its protection. On the other hand, where there is foam, it also means that the contact surface with the air increases. It also accelerates its oxidation, so it is necessary to add a defoamer to avoid foam.

Dye

Function 1: For identification, for example, the automatic transmission fluid (ATF: Automatic Transmission Fluid) of automobiles is dyed red to facilitate identification and maintenance in case of oil leakage;

Function 2: For marketing and advertising, for example, most of the two-stroke engine oils in Japan are dyed light blue or red. In addition to being beautiful, it can be used to advertise that the base oil in the lubricant is highly refined and light in color before it is dyed.

What is the formula ratio of Engine oil additive?

In fact, the formulations of all lubricant additives are relatively the same, but slightly different. The formulation of an engine lubricating oil is obtained through many steps such as research, development, and testing, and it takes several years to obtain. For example, some lubricants are specially formulated for urban congestion and often need to be started and stopped. Our fully synthetic extreme protection pays more attention to comprehensiveness and is more suitable for high-temperature engines with turbochargers.

If I use mineral engine oil, should I add a little engine oil additive, such as adding some detergent or anti-rust additive to achieve the effect of fully synthetic engine oil, isn't it more cost-effective?

This is not the case. What is the difference between mineral engine oil and fully synthetic engine oil in base oil? We do not recommend that you buy the engine oil additive by yourself, because the finished engine oil is sold to consumers after strict bench testing and meets the industry specifications and the specifications of major car manufacturers. The formula is the most optimized formula. Add engine oil by yourself On the contrary, additive will affect the efficacy of Castrol oil, and there is a risk of destroying the original efficacy.

Infomak is dedicated to the technology development of special oil additives, combined the Technology of nanomaterials developed dry lubricant and oil additives two series. Our products can significantly improve the performance of lubricating oil, improve energy efficiency, effectively protect the lubrication device and extend the oil change cycle, which can satisfy the lubrication oil constantly upgrading for high-end engine oil additives. Contact us.

 




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