Nothing is more frequently used than lubricating oil in car repair and maintenance. In addition to saving gasoline and reducing the number of oil changes, high-quality lubricating oil can also protect the engine. However, car fans often have various misunderstandings about lubricants, causing car breakdowns caused by improper use of lubricants.
Misunderstanding XNUMX: Add more lubricating oil
Lubricating oil is not as much as possible. The amount of oil should be controlled between the upper and lower marks of the oil dipstick. On the one hand, if it is too much, it will increase the stirring resistance of the crankshaft connecting rod and increase the fuel consumption. On the other hand, too much lubricating oil will escape from the gap between the cylinder and the piston into the combustion chamber and burn to form carbon deposits. These coke deposits will increase the compression ratio of the engine and increase the tendency of knocking; the coke deposits in the cylinder are red hot and easily cause pre-ignition. If they fall into the cylinder, it will aggravate the wear of the cylinder and piston, and will also accelerate the pollution of the lubricating oil.
Misunderstanding XNUMX: When the lubricating oil turns black, it is time to change the oil
This understanding is one-sided. For lubricating oils that have not been added with a quiet dispersant, the darkening of the color is indeed a sign that the oil has been severely deteriorated, but some lubricating oils used in automobiles are generally added with a quiet decomposer. This cleanser will wash off the rubber film and black carbon deposits adhering to the piston and disperse it in the oil to reduce the generation of high-temperature deposits in the engine, so lubricating oil is used
The color tends to turn black after a period of time, but the oil at this time is not completely deteriorated.
Misunderstanding XNUMX: Lubricating oil is often added and not changed
It is correct to check the lubricating oil frequently, but only adding and not changing can only make up for the lack of oil quantity, but it cannot fully compensate for the loss of lubricating oil performance.During the use of lubricating oil, the quality will gradually decrease due to pollution, oxidation and other reasons, and at the same time there will be some consumption, which reduces the quantity.
Misunderstanding XNUMX: Additives are useful
Some car owners have the habit of adding additives themselves, which is not a good thing. This approach not only fails to bring additional protection to the vehicle, but also easily reacts with the chemicals in the engine oil, resulting in a decline in the overall performance of the engine oil. Really high-quality lubricants are finished products with a variety of engine protection functions. The formula already contains a variety of additives, including anti-wear agents, and the lubricant* pays attention to the balance of the formula to ensure the full play of various performances. What kind of engine oil is recommended in this article? What kind of engine oil should you add? Why does the engine burn? The reason why the engine burns? How to judge the difference between the engine? Korean cars.
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Link to this article：Misunderstandings in the Use of Lubricants and Corresponding Countermeasures
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