How to judge whether the special engine oil of Chang 'an car is real or fake?

The original engine oil of Chang 'an was Shell Oil. In addition, the whole series of Chang 'an cars also used Great Wall engine oil, and the original fully synthetic engine oil of Delford was also suitable for some models of Chang' an cars, such as Chang 'an Shenqi T20 special engine oil. And there were many situations such as Changan's original fully synthetic engine oil. The novel " Good Chang 'an " is equally exciting. Everyone is welcome to click and read it!

There were many types of engine oil related to Chang 'an. For example, Chang 'an's original engine oil had a fully synthesized 5W-30TN/FF- 5 grade engine oil directly supplied by 4S stores; ZAIQU had 0W- 2 engine oil suitable for Chang' an New Yi Dong second generation cs 35 Plus full blue whale 1.4T; There was also Heluo's 4L light light sn5W30 full engine oil suitable for Chang 'an Suzuki Xiaotu, Vitra, Feng Yu 1.4T Qiyue, etc. Different models had different engine oil. It was relatively safe to change the oil in the 4S shop. Most of the engine oil was the original vehicle oil. After a large number of bench tests by the manufacturer, the oil change in the 4S shop was low in cost-effectiveness. The novel "Good Chang 'an" is equally exciting. Everyone is welcome to click and read it!

Chang 'an recommended the use of the original fully synthetic engine oil. For example, 5W-30TN/FF- 5 grade 4L Great Wall engine oil was suitable for the entire series of Chang' an cars such as the C75/Yidong, and 5W-30TN grade 3.5L Great Wall engine oil was suitable for the entire series of Chang 'an cars such as the Yidong/C35. In addition, Chang 'an's original custom-made engine oil, fully synthesized engine oil, 5W-30TN grade 4L Extreme Protection, was also recommended by Chang' an. The novel "Good Chang 'an" is equally exciting. Everyone is welcome to click and read it!

The engine oil that Chang 'an could use was the original Chang' an fully synthetic engine oil, such as 0W-20TN grade 4L Great Wall engine oil (exclusive to Chang 'an Blue Whale engine), 5W-30TN grade 3.5L Great Wall engine oil (applicable to all systems of Yi Dong/CS 35/Chang' an), and Chang 'an Magnetic Protection series 5W-30TN grade original fully synthetic engine oil 4L. The novel "Good Chang 'an" is equally exciting. Everyone is welcome to click and read it!

The brands of engine oil suitable for Chevrolet were Shell's and SAIC-GM's. Shell provided semi-synthetic engine oil for Chevrolet, model 5W- 30, and SAIC-GM also had fully synthetic engine oil suitable for models such as the Chevrolet Cruze, such as 5W- 30. In addition, Silver Mobil No. 1, a fully synthetic engine oil, could provide anti-wear protection for the engine, withstand various temperatures, and improve engine cleanliness. In theory, it could also be applied to Chevrolet cars, but it did not indicate that it was a brand of engine oil specifically for Chevrolet cars. The novel " After the Fall of Heaven " is equally exciting. Everyone is welcome to click and read it!

The following methods could be used to determine whether a jade was real or fake: 1. ** Color distinction **: The color of natural jade is natural and evenly distributed; the color of dyed jade is gorgeous and not natural enough. 2. ** Touch **: Different jade density has different hand feel. For example, Hetian jade has a higher density, so it will feel heavier. Holding it in your hand will give you a cold and slippery feeling. If you push it with your hand, you will feel that the oil is pushed away and there is a sense of resistance. Fake jade does not have these characteristics. 3. ** Light observation **: Under the light or sunlight, the internal structure of natural jade is naturally orderly; artificial imitation jade has obvious artificial traces, and there are even air bubbles inside. When observing the texture of the jade, if it is uniform and transparent and has a good luster, it may be real Hetian jade; if it is very rough and the interior is vague and opaque, it is mostly fake Hetian jade. 4. [Distinguish by sound: When jade is knocked against each other, the sound of natural jade is clear and melodious, while the sound of fake jade is muffled.] One could hang the jade in the air with a rope and then use another jade to gently knock it to judge. 5. ** Judgment of special circumstances **: - For the fake materials (such as glass imitation jade, resin imitation beeswax, etc.), you can observe and compare the texture and texture of the jade, and weigh it by hand. Jade made of glass was too transparent and perfect, without any natural traces, and was lighter than jade, while jade made of resin and plastic could not compare to real jade in terms of weight and hardness. - For fake jade made from inferior real jade, one could look at the texture, structure, and color. For example, the color and texture of B grade jade processed by acid corrosion were not as natural as natural jade. There might be grid-like patterns in the structure that natural jade did not have. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!

There was no scientific basis to prove the authenticity of voodoo. From a scientific point of view, there was no evidence that the so-called voodoo could achieve supernatural phenomena such as controlling others, transferring property, or enslaving souls. However, some cultures, legends, and some ancient books had records of gu techniques. But these were often based on traditional ideas, folktales, and cultural practices. For example, the legend of the Miao people's voodoo. Although there were many stories circulating, most of them were folk cultural content passed down by word of mouth. In modern society, if there was a suspected voodoo related incident, such as physical discomfort, it should be diagnosed from a scientific medical point of view, such as physical examination and analysis of the cause, rather than attributed to voodoo. In short, according to the scientific knowledge system, there was no evidence to prove the existence of voodoo. The relevant phenomena should be judged from the perspective of scientific rationality. While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!

The used engine oil could be treated directly with four kinds of reagents, namely the four kinds of reagents, the four kinds of reagents, the The color removal process was divided into two steps. The first step was to add Agent A to remove the non-carbon impurities in the oil, stir it evenly for 30 minutes, and then enter the splitter to separate the waste residue. The second step was to add Agent B and Agent C respectively to remove the visible and hidden colors in the waste engine oil, stir for about 20-25 minutes, then add Agent D, stir for about 5-10 minutes to remove the peroxide-based groups, polar groups, and half-colors in the oil. This kind of coloring agent could improve the stability of the coloring oil, so that the color could reach the national standard, and it would not change color after being stored for more than half a year. The main equipment was a mixing tank and a splitter. The equipment investment was about 300,000 to 400,000 yuan. The cost of each ton of coloring agent depends on the quality of the oil, and the price is about 80-100 yuan. Decolorization and regeneration of used engine oil was a key technology in the field of oil refining.