How to distinguish between real and fake engine oil, and whether choosing semi synthetic engine oil

I currently choose to add GT Magic Red to this car, which is very simple and does not need to judge the authenticity at all, because there are no fakes on the market. Of course, the power of PAO engine oil is the most convincing, the sensitivity of the throttle is very high, and with a slight step, the full power will come up, and the car always has a forward attitude.

It is recommended that GT Magic Red engine oil is very simple and does not need to judge the authenticity at all, because there are no fakes on the market. The sensitivity of the throttle is very high, and when you step on it slightly, the full power will come up, and the car always has a forward attitude.

1. See if there is a label of PAO and ester engine oil, only these two raw materials are not mixed.

The products of Class I, II and III base oils are the fully synthetic engine oils.

2. Look at the word "full" in front of "synthetic engine oil", if it is PAO engine oil or ester engine oil, it will be marked with "fully synthetic engine oil".

3. Looking at the number in front of W, semi-synthesis is generally 5W, generally 5W-30 or 5W-40, and the real full synthesis is generally 0W. This is the most important, and generally Minsui consumers will think that the car usually adds 5w or 10w engine oil, and 0w does not meet the requirements of the car. In fact, 0w is the highest level, better performance than 5w, 10w engine oil, universal in all seasons, suitable for any model, high-end car oil almost all of the oil is 0w.

Introduction] In order to get a better performance engine oil, human beings use chemical methods to synthesize various engine oils, which is chemical synthetic engine oil, referred to as synthetic engine oil.

Synthetic motor oil is a kind of artificially manufactured motor oil, in the production process, a variety of natural substances are selected for chemical decomposition, and then synthesized with various other substances, and finally synthetic motor oil is produced.

Synthetic engine oil manufacturers produce various types of synthetic engine oil according to user requirements. In other words, synthetic motor oil can change its composition depending on the purpose for which it is used.

Characteristics] Synthetic motor oil is the product of modern chemical technology progress. The advantages of synthesizers are numerous. For example, synthetic engine oil has higher lubricity than mineral engine oil, less frictional resistance, less oxidation, and strong cleanliness.

Semi-synthetic motor oil and fully synthetic motor oil are two classifications of motor oil (fully synthetic motor oil has no mineral oil in it, and semi-synthetic has a little bit of it).

The biggest difference between the two is that the fully synthetic oil is used at a wider temperature and has a longer service life; The same oil film requirements can be achieved with a lower viscosity of synthetic oils, while semi-synthetic oils need to use a higher viscosity than synthetic oils to achieve such requirements.

In other words, in the same operating environment, a fully synthetic oil can protect the engine with a lower viscosity. Similarly, in the same working environment, fully synthetic oil has a much longer service life than semi-synthetic oil, so although the cost is higher, it is not much higher than mineral oil after comparing the number of oil changes.

Compared with semi-synthetic sock oil, fully synthetic motor oil has the following characteristics:

1. Fully synthetic engine oil has better high and low temperature performance;

2. There is a longer oil change interval;

3. Suitable for worse vehicle conditions.

The general engine oil is indicated whether it is synthetic, in fact, it can also be seen from the color, the mineral oil is darker, and the synthetic oil is lighter in color, the transparent light yellow is full synthetic is fully synthetic oil can not be distinguished by the label, the general oil bottle will indicate whether it is fully synthetic or semi-synthetic or mineral oil.

The viscosity of motor oil is generally marked by SAE and other grades, SAE is the abbreviation of the English "Society of Automotive Engineers". Taking SAE15W-40 and SAE5W-40 as the object of analysis, the W represents the meaning of winter, and the number in front of W represents the fluidity of the engine oil at low temperature in winter. The number after W represents the performance index of the engine oil at high temperatures, and the larger the number, the better the protection performance of the engine oil at high temperatures.

This oil is often referred to as a "multi-grade oil" and protects the engine by changing its temperature in both cold and hot summers.

Generally, according to SAE classification, the oil grade is: 5W W W-50.

Mineral oil is based on petroleum refined mineral oil, with the addition of some additives, its efficacy has been fully able to meet the needs of the daily work of the engine, and at the same time it is cheaper, but this oil is more lubricated, for the cleanliness and repair of the engine, it will naturally be worse, and its service life is lower than that of synthetic oil.

The so-called fully synthetic motor oil, its English is fully synthetic, it is a chemical synthetic engine oil. In the production process of this oil, different substances are formulated depending on the purpose of use. It has good performance in terms of lubricity, cleanability, and repairability, and its oil change interval is longer, and it is more adaptable to the environment, but it is also more expensive.

Semi-synthetic engine oil, strictly speaking, semi-synthetic engine oil can only be regarded as mineral oil, and its production process is based on mineral oil, adding a large number of synthetic engine oil additives. While ensuring the efficacy of lubrication, it also has good performance in cleaning, repair and other functions.

It is simply not recognizable with the eyes. You can only look at the logo on the package.

It is written above for full and semi-compositive. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, look at the grade of engine oil, semi-synthetic engine oil grade CF fully synthetic motor oil grade gf hope my answer will be helpful to you [If you have a question about the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Generally, you can only look at the outer packaging of the engine oil [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

From the appearance, it is not seen that it is all blended with base oils, but more from the performance and intolerable formulation. Fully synthetic oils have a longer service life and can be achieved with lower viscosities. Semi-synthetic oil needs to use a thicker viscosity than synthetic oil to meet the requirements.

In fact, although fully synthetic motor oil and semi-synthetic motor oil are both used as two classifications of engine oil, in general, the biggest difference may only be three points: applicable temperature, replacement cycle, and driving conditions.

The molecules of fully synthetic oil are arranged neatly, the ability to resist external variables is naturally very strong, the physique is better, the heat is stable, the oxidation resistance, the viscosity change resistance is very good, the applicable temperature is wider, and the high and low temperature resistance is better, and compared with the same oil film requirements, the viscosity of fully synthetic engine oil is lower, and the semi-synthetic oil needs higher viscosity to achieve the same effect.

In short: a fully synthetic motor oil can protect the engine with a low viscosity in the same driving environment. Therefore, in the process of use, the service life of fully synthetic oil is significantly longer than that of semi-synthetic engine oil, and the number of oil changes is less, even if some people are worried about the high cost of fully synthetic engine oil, but the number of replacements is less, the service cycle is long, and it is basically not too expensive compared with semi-synthetic engine oil.

You can query the data of oil products, and the specific points of fully synthetic engine oil are as follows: 1. The viscosity index (the larger the value, the better the viscosity and temperature of the oil), reaching more than 150, proving that its base oil contains 4 types of base oil (PAO), and more than 160 is almost dominated by 4 categories. 2. The flash point (which can judge the high temperature stability of the oil) is more than 200 degrees to reach the standard of full synthesis.

3. The lower the pour point (indicating the lowest temperature at which the cooled oil can flow), the better its low temperature fluidity, the smoother the engine start, and the reduction of wear during cold start, the reference value should be about minus 35 degrees, and the level of the pour point also depends on the base oil, and the 4 types of base oil have the characteristics of low pour point. 4. High temperature and high shear viscosity (HTHS), indicating the oil film strength of the lubricating oil under high shear conditions at 150, the larger the value, the higher the strength, and the oil film is not easy to break when the engine is running, so that the engine can be better protected. This is the most important indicator, turbocharged vehicles, must be used with fully synthetic engine oil.

The engine with a supercharger can bring a refreshing push back feeling at the moment of acceleration, but when the turbine starts to work, the engine torque will increase exponentially, and according to the principle of turbocharging technology, the oil film covering the engine crankshaft at this time will bear several times higher shear force than before, so the oil with a value greater than HTHS belongs to the category of fully synthetic engine oil. Hope to adopt.

There are three types of motor oils: ordinary engine oil (mineral engine oil), semi-synthetic engine oil and fully synthetic engine oil. If you change the oil within the normal maintenance period, you can use regular oil without any problem. Synthetic engine oil is a more popular engine oil on the market, and the base oil it uses is not fully synthetic, so it is commonly known as semi-synthetic engine oil.

Fully synthetic motor oils are used in a wider range of temperature conditions and have a longer service life. In the same working environment, a fully synthetic motor oil can protect the engine with a lower viscosity. Although the fully synthetic oil is higher, it is not much higher than the mineral ordinary engine oil after comparing the number of oil changes, and the oil change cycle is longer than that of semi-synthetic oil.

My car has always used fully synthetic engine oil, and the time to change the engine oil has been adjusted to 7,000 to 8,000 kilometers, and even within 10,000 kilometers there is no problem, and the cost is not high.

What is the difference between fully synthetic and semi-synthetic oil?

Hello, if you just look at the quality of the oil, you can't see it with the naked eye at all! It still depends on the manufacturer's bottle packaging, which is generally indicated! According to experience, semi-synthetic ones will generally write "synthetic type", "synthetic technology", etc., and fully synthetic ones will directly indicate "fully synthetic"!

Here are four ways to identify a fully synthetic motor oil:

First, the surface of the fully synthetic engine oil is clear and free of impurities, and the oil dripping line is very thin, will not be intermittent, and will not have an unpleasant taste;

Second, after adding fully synthetic engine oil for the first time, the oil quickly turns black, because the fully synthetic engine oil has a strong cleaning function, it will clean out the remaining debris in the original crankcase, so the oil quickly turns black;

Thirdly, after adding fully synthetic engine oil, it will be obvious that the noise will be reduced and the power will be increased.

Fourth, use professional methods for testing.

It is not visible to the naked eye. Looking at the viscosity grade, if it is 0w, it must be fully synthetic. If it's 5W, it's usually semi-synthetic, but some also call themselves fully synthetic.

Generally, there is a mark on the oil drum.

Differences:1Fully synthetic oils have a longer service life; Synthetic oils can be achieved with lower viscosities.

2.Semi-synthetic oil needs to use a thicker viscosity than synthetic oil to meet the requirements.

There will be a label on the bottle, if it is fully synthetic, it will be indicated that it is fully synthetic, if it is only synthetic, then it is semi-synthetic motor oil.

General engine oil is indicated. Whether it is synthetic or not, in fact, it can also be seen from the color, mineral oil is darker, while synthetic oil is lighter.

Engine oil, that is, engine lubricant, English name: engine oil. The density is about to lubricate and reduce friction, assist cooling and cooling, seal leakage, rust and corrosion, shock absorption and cushioning for the engine.

Known as a car"Blood"，。The engine is the heart of the car, and there are many metal surfaces in the engine that rub against each other, and these parts move fast, the environment is poor, and the operating temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life.

The engine oil on the market can be divided into two types: mineral oil and synthetic oil due to its different base oils (vegetable oil is not counted due to the scarcity of production). Synthetic oil is divided into: fully synthetic and semi-synthetic. Fully synthetic motor oil is of the highest grade.

Engine oil is made up of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil, and additives can make up for and improve the shortcomings of base oil performance, give some new properties, and are an important part of lubricating oil.

Lubricating oil base oils are mainly divided into two categories: mineral base oils and synthetic base oils. Mineral base oils are used in a wide range of applications in large quantities (about 95% or more), but some applications require the use of synthetic base stock blends.

Basic introduction] Engine oil, that is, engine lubricating oil, is known as the "blood" of the car, which can lubricate, clean, cool, seal, reduce wear and other functions of the engine, which is a well-known fact.

Automotive lubricants.

Viscosity Standards: SAE (Society of Automotive Engineers) viscosity classifications are used to distinguish the different temperature ranges for which lubricants are suitable.

Performance standards: API (American Petroleum Institute) performance classification is mainly used to distinguish the performance and quality of lubricating oils.

SAE and API standards have been recognized by the International Organization for Standardization (ISO), so engine oils are not subject to separate international standards.

Other classifications include the ACEA (European Automobile Manufacturers Association), JASO (Japan Automotive Standards Organization) and the classifications of individual engine manufacturers.