How to see the oil parameters? How to distinguish true and false oil? Detailed explanation finally found!

During the Spring Festival, Xiao Yi read a news report saying that there was a BMW owner. He added false motor oil and made the engine irritably blocked. This is a bad example. The owner of the car was unhappy. . There are also a lot of riders who also react to the small i suffer from difficult to identify the true and false engine oil, but do not understand the various parameters of the oil, then the omnipotent small i today to give everyone a thorough talk about oil that thing!
Well, let's see how to identify true and false oils first!
The first move: see the color!
First look at the color, in the normal temperature state, the color of genuine oil is much deeper than the fake oil.

The second measure: smell smell!
Taste is also the most important way. Through the smell of oil on your nose, you will find that the genuine oil has almost no sensitive taste and is similar to a light fragrance, while the fake oil has a noticeable smell of gasoline.
The third measure: frozen!
Take a little oil into the cup and place it in a refrigerator at minus 15 degrees Celsius and freeze for 48 hours.
After this, the genuine motor oil will show good low-temperature fluidity, while there will be no obvious change in transparency and color, while the false engine oil will appear slightly viscous and appear turbid.
Having finished the method of distinguishing between true and false, then we should fully interpret the various parameters of the oil, and we certainly can't always wait to buy it to see whether it is true or false? Then, after reading the following pictures, you can easily become an oil expert. No longer need to be pitted!
Where do you see the parameters of the oil?
Come to see the picture! See no? Each bottle of oil has the following parameters, according to this find OK!

How is the oil level divided?
Motor oils are also graded. Mineral oil, semi-synthetic, and total synthesis are relatively popular terms for classifying oils. The SN/CF on the bottle represents the API grade of the oil in the bottle. How to divide it and continue to see below!

1. The "S" beginning series represents the gasoline engine oil. The specifications are: API SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, SN.
2. The "C" beginning series represents diesel engine oils and specifications are: API CA, CB, CC, CD, CE, CF, CF-2, CF-4, CG-4, CH-4, CI-4.
3. When both letters "S" and "C" are present at the same time, it means that the engine oil is a general type for the gas cylinder.
The letter behind S or C means the following: From "SA" to "SN", with each letter incremented, the environmental rating of the oil will be better than the former, and the higher the letter, the higher the environmental rating. The oil level is mostly above the SF level, and the highest environmental grade oil is “SN”.
How to choose the oil level? 　
    Ordinary oil (mineral oil): Suitable for A-class vehicles, often open in the urban areas, half-year mileage does not exceed 5,000 kilometers of the car, it is recommended to use ordinary motor oil (mineral oil), more economical, the choice is also relatively wide.
Replacement period: within three months or within 5,000 km.
Semi-synthetic motor oil: 5-20 million models, non-turbo models. Relatively more economical, there are common Mobil Speedmaster 2000, Castrol magnetic protection and so on.
Replacement period: 6 months or 5000-7500 kilometers
Synthetic engine oil: turbocharged models, direct-injection models, SUVs, and large-displacement models. If you like to drive fast cars and start and stop frequently, then use full synthetic oil. Local tyrants arrogantly ~ common Kim Mei-fu, Silver Mobil, Castrol multi-polar protection, Total 9000 and so on.
Mileage change: 9 months or 8000-12000 km

PVC RESIN SG5

In terms of building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, and fibers, PVC was the world`s largest production of general-purpose plastics, and its applications are very widely. Widely used in all aspects.

PVC is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77~90°C. It begins to decompose at about 170°C. It has poor stability to light and heat. After prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further automatically catalyze the decomposition, causing discoloration, and the physical and mechanical properties also rapidly decline. In actual applications, stabilizers must be added to improve the stability of heat and light.

the Degree of polymerization of SG5 is 1000. usually we also call PVC Resin S1000. Its K-value is K67.

PVC RESIN SG5,Polyvinyl Chloride,Polyvinyl Chloride SG5,PVC Resin K67

Henan Shunbang Chemical Industry CO.,Ltd , https://www.pvcresinchem.com