1, oil flow observation method, when maintaining and discharging oil, you should observe its flow at the end, and the oil flow with good quality should be slender, uniform and continuous.
2. Hand twisting method: the discharged old engine oil is repeatedly ground with thumb and forefinger, which has good hand feeling, good lubricity, less abrasive debris and no friction.
3. Oil drop trace method: Take a clean white filter test paper (you can use a better facial tissue) and drop some old engine oil on the paper. After the spare oil leaks, the good quality engine oil is powder-free, smooth and yellow by hand.
Question 2: How to identify the authenticity of Castrol engine oil? Castrol engine oil cover has anti-counterfeiting inquiry, but many fake engine oils are recycled and refurbished.
The safety bolt of the bottle cap can be screwed out together with the lid. The cover is real, but the safety bolt was welded later.
The edge of the lid is rough.
There will be a string of numbers here on the bottle mouth, but there is none here.
There will also be a string of codes torn here, but not here.
Also, Castrol engine oil can emit green light when it is irradiated by ultraviolet light during banknote inspection.
Question 3: How to tell whether the oil is true or false after use? If it is fake engine oil, the lubricity and viscosity at high temperature can not reach the target.
So the phenomenon is burning engine oil, which aggravates the wear and tear of parts in the engine.
Check the oil gauge: Look at the gauge and judge whether there is obvious oil shortage. Second, look at the color, the normal oil at 6000KM is mostly brown, and the darker the oil, the more abnormal it is.
As for "fake", it can be understood as: unqualified quality (fake) or poor quality (replacing 100 yuan engine oil with 200 yuan packaging). If you buy inferior engine oil, the problem is not big.
Suggest the landlord, there is no reliable channel, it is best to change the oil at 4S shop.
Question 4: How to tell the true and false engine oil? There are generally three kinds of counterfeit engine oil: first, the recovered waste oil is filled and listed after treatment; Secondly, pure base oil is used for blending, and no additives are added to reduce the cost; The third is to buy low-grade oil and fill it with inferior oil. Fake oil dealers adjust the color of fake oil to be equivalent to real oil, which is difficult to distinguish from the appearance.
Question 5: How to identify the true and false brand engine oil? Now it is useless to distinguish the true and false engine oil from the packaging barrel. Some fake oil packages are more real than the real ones. Let me talk about two practical skills.
1. Smell: Real oil has no smell.
2. Put it in the freezer for one night to see if there is any solidification or catkin-like precipitation. The engine oil with 5w viscosity can still flow at minus 30 degrees. 0w is-35, if it turns into jelly or catkin-like fake engine oil, there will be proper precipitation.
Hope to adopt
Question 6: How to tell whether the oil is true or false?
There are generally three kinds of fake and inferior engine oil: one is to recycle waste engine oil and refill it after processing. The second is to reduce the cost as much as possible, without additives, just pure base oil blending. The third is to swell the face and fill the fat: buy low-grade oil irrigation.
2 Identification skills
1 Look at the packaging appearance
The container of genuine engine oil is well-made, and the packaging box is brightly colored, without stubble and connection protrusion. Authentic oil seal cover is a disposable cover, with sealed tin foil at the gap, which is marked by the manufacturer. In addition, the labels and stickers of genuine engine oil, the bottom of the fuel tank, the inside of the fuel tank cover, the handle and other inconspicuous places generally have special marks. So when you buy engine oil, you can tell it by carefully comparing the outer packaging.
2 Observe the appearance of oil products.
Although it is said that fake engine oil is real kung fu, paper can't hold fire, and the appearance is definitely different. Authentic engine oil is light and transparent, free of impurities, suspended solids and sediments, and has good fluidity when shaking. Domestic genuine bulk engine oil has bright luster, while imported engine oil is relatively transparent and golden in color. Fake oil is generally dark in color, with impurity precipitation and poor fluidity when shaking.
In the above picture, Audi original semi-synthetic oil is on the left, and the false gray shell is on the right. Don't mistake synthetic oil for crystal clear. In fact, the transparent state of synthetic oil is not very good, and it is basically translucent.
3 Look at the price
It doesn't matter if the price of engine oil in one store is cheaper than that in other stores, but if it is too cheap, you should pay more attention! Because genuine engine oil generally has a uniform price, the engine oil prices of different stores fluctuate around this price, and there will not be much difference. There are many people selling dog meat on a treasure, so be sure to keep your eyes open!
Smell and feeling
Authentic oil has a light taste and a little fragrance of crystal wax. Fake engine oil has a strong smell. At room temperature, the genuine oil has low viscosity and basically does not stick to hands. Fake engine oil is sticky, and it is brushed by hand.
Manufacturer's official anti-counterfeiting certification
Many regular engine oil manufacturers will provide various anti-counterfeiting authentication methods, such as anti-counterfeiting labels, anti-counterfeiting two-dimensional codes, product serial numbers, special marks, official website, customer service phone numbers, SMS verification and so on. As long as it is verified with snacks, the probability of buying fake engine oil will be very small.
Question 7: How to distinguish the authenticity of automobile engine oil from its packaging? The container of genuine engine oil is well-made, without stubble and connection protrusion. In addition, many brands of genuine engine oil will have special marks in inconspicuous places such as labels, tank bottom, inside of tank cover and handles. When changing oil, you can carefully observe the packaging to see if it meets the above characteristics.
Question 8: How to distinguish the authenticity of Mobil engine oil First of all, there is a sunken Mobil trademark on the bottle cap of the product, and the silver aluminum foil on the bottle mouth is completely sealed. The bottle has a two-dimensional code genuine identification mark, which can confirm the authenticity of ExxonMobil's main products through packaging anti-counterfeiting technology. Sequin sorting patterns cannot be copied, and sequins in the picture can be picked out with a needle, which is not as simple as ink. You can also call Mobil Lubrication Technology Hotline. For details, please refer to the genuine appraisal guide of Mobil TM lubricating oil on Mobil official website.
Touch, scan, pick, touch and feel the colored sequins with concave and convex feeling next to the QR code; Secondly, the mobile phone scans the QR code to compare whether the distribution of sequins is consistent; Third, pick out the colored sequins and complete the genuine identification.
Question 9: How to distinguish the true and false engine oil? Mainly depends on the color and smell, but now there are fake ones and real ones, which are still not easy to distinguish. Generally, genuine engine oil will have anti-counterfeiting codes to verify its authenticity. From the appearance, genuine engine oil is cleaner than fake engine oil, and the trademark is clearer. If you can't judge, choose to buy it online, like Jade Rabbit. Com, there is no concern about fake goods, and the quality is better.
Question 10: How to tell the true and false Castrol engine oil? See: 1) The new engine oil package looks clean and beautiful, with no oil stains and dust. The sealing cover is a disposable cover, and there is sealed tin foil at the gap, which is marked by the manufacturer. 2) General labels and stickers have special marks in inconspicuous places such as the bottom of the tank, the inside of the tank cover and the handle. 3) Castrol's four-stroke engine oil of any grade has the words "core triangle TM" on the label. 4) The batch number and production time on the bottle cap should be the same as that on the bottle body, and the error between the batch number and production time on the bottle bottom should not exceed 2 months. 5) There is a set of serial numbers on the bottle caps of Castrol products, which are printed by computer before leaving the factory. One of the serial numbers of Castrol pure products is consistent with a set of numbers on the bottle. Smell: it's really oily and light, with a little smell of crystal wax; Fake oil has a strong smell. Touch: fake oil is brushed by hand. Put a small drop on your finger and rub it hard. It is not good oil that quickly grinds off the oil film. If you skate for a long time, you are basically qualified. Inspection: When the front label is irradiated by ultraviolet rays like a money detector, the hidden logo of BP will appear. Instrument inspection: If it is difficult to identify the fake oil by a simple method, the oil can be sent to the relevant inspection department for identification. These little experiences can basically help you identify the authenticity of lubricating oil, and you are welcome to supplement them. Shenzhen Xinzhiyuan Lubricating Oil Co., Ltd. Article Source: