How to identify a fully synthetic motor oil What is a fully synthetic motor oil

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.

Extended Materials. Synthetic motor oil is the product of modern chemical technological advancements. 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 engine oil, fully synthetic engine 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 biggest advantage of fully synthetic motor oil is the protective performance of the engine, mainly in the anti-wear and high-temperature stability, it can increase the power of the engine, reduce wear and reduce fuel consumption, and maximize the life of the engine (for the characteristics of fully synthetic motor oil, please refer to ** on load).

At present, there are only professional testing methods for the identification of fully synthetic engine oil, and the general owner can not identify it from the naked eye or hand touch, because of this, there are indeed some profiteers who label non-synthetic engine oil as fully synthetic to deceive people. Tell you some immature methods: first, the fully synthetic engine oil looks clear and free of impurities, and the oil dripping line will not be broken if it is very thin, and there will be no unpleasant miscellaneous smell; 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; Third, after adding fully synthetic engine oil, you will obviously feel that the noise will be reduced and the power will be increased.

I can only tell you this briefly, the most fundamental way is to go to the designated ** supplier or reputable point of sale of motor oil to buy, and you should buy some well-known engine oil products, or products that have been used by friends and think they work well.

Strictly speaking, we usually refer to high-quality engine oil products that are 100% PAO (polya-olefin) or synthetic esters, and the word "synthetic" is generally marked on the oil drum. However, in simple terms, engine oil blended with Class 4 and 5 base oils, and blended without mineral oil, can be called fully synthetic engine oil.

If it's all in synthetic motor oil, there will be a mark on the packaging of the oil. When buying engine oil, you must buy it from regular channels, and you must choose products from big brands. Engine oil is something that every car owner comes into contact with when they are using their car. Without oil, the engine cannot function properly.

Engine oil not only plays the role of lubrication, but also plays the role of rust prevention, heat dissipation, buffering, cleaning and sealing.

When the engine is running, the oil will form an oil film on the surface of each part of the engine, which can prevent friction caused by direct contact between the parts in the engine of the hair shirt.

If the components in the engine are in direct contact and cause friction, it will increase the wear and tear of the engine and can also cause the engine to overheat.

If the engine overheats, it will cause the cylinder to be pulled.

The performance of the engine oil will be reduced after a long period of use, so it is necessary to change the oil regularly.

It is recommended that you must change the oil regularly when using the car, and change the oil filter element together every time you change the oil.

Oil Filters The filter element is used to filter the oil. Without an oil filter, the oil will get dirty after a period of use.

When buying engine oil and oil filter elements, you must choose a big brand, and you must buy it from regular channels.

When you usually use the car, be sure to maintain your car on time.

Differentiation method: automobile engine oil is composed of base oil and additives, with base oil accounting for about 70%-80% and additives accounting for about 20%-30%.

Base oils are divided into five categories according to their quality grades, among which:

Categories 1, 2 and 3 are mineral base oils, Categories 4 and 5 are fully synthetic base oils, Class 4 is PAO (polyolefin), and Class 5 is esters (mostly polyol esters). Mineraral, semi-synthetic and fully synthetic motor oils are defined by the type of base oil.

Oil type, base oil type. Mineral engine oils: Group I, II and III base oils. Fully synthetic motor oils: Group 4 and 5 base oils. Semi-synthetic engine oil: Blended with Class 4 and 5 base oils.

Blending of Class I, II and III base oils. When you choose a motor oil, you may see that some manufacturers label "synthetic technology" or "synthetic engine oil" on the outer packaging, but in fact, these are not real fully synthetic engine oils!

How to identify:1See if there is no label of PAO and ester engine oil, only use these two raw materials and do not mix.

The products of the first, second and third types of base oil are 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 definitely be marked with "fully synthetic engine oil".

3.Looking at the number in front of W, the empty mountain semi-synthesis is generally 5W, generally 5W-30 or 5W-40, and the real full synthesis is generally 0W. This is the most important, the average consumer will think that the car usually adds 5w or 10w 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.

The easiest way is to look at the barrel, as long as the barrel is fully synthetic engine oil, there are three words written on it. If it's a semi-synthetic oil, it will say synthetic oil. If nothing is written, it is mineral motor oil :

1. Engine oil, that is, engine lubricating oil, 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;

2. Engine oil is composed of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil;

3. Additives can make up for and improve the lack of performance of base oil, and give some new properties, which is an important part of lubricating oil.

1. From the appearance, it is not seen that it is all blended with base oil, but more from the performance and intolerable formula to identify. 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;

2. In fact, although fully synthetic engine oil and semi-synthetic engine 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;

3. 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 ability to resist viscosity changes is very good, the applicable temperature is wider, and it has better resistance to high and low temperatures.