The four major misunderstandings of the daily use of lubricating oil can increase the amount of material

Automotive lubricants are used at very high frequency during maintenance. In addition to protecting the engine and reducing the number of oil changes, high-quality lubricants also save on gasoline costs. In this season, we must also pay attention not to cause car failure due to improper use of lubricating oil. The "inappropriate" method of use generally originates from the four "misunderstandings" of the riders on the lubricating oil.
China Hardware Business Network

Automotive lubricants are used at very high frequency during maintenance. In addition to protecting the engine and reducing the number of oil changes, high-quality lubricants also save on gasoline costs. In this season, we must also pay attention not to cause car failure due to improper use of lubricating oil. The "inappropriate" method of use generally originates from the four "misunderstandings" of the riders on the lubricating oil. For the following four kinds of "misunderstandings", the technicians gave a professional explanation: Misunderstanding 1: Lubricating oil is often added without changing. It is correct to check the lubricating oil frequently, but only adding and not replacing can only make up for the shortage of oil, but it can not be completely Compensation for loss of lubricating oil performance. During the use of lubricating oil, the quality will gradually decrease due to pollution, oxidation, etc., and there will be some consumption, which will reduce the quantity. Misunderstanding 2: The use of additives is a truly high-quality lubricant. It is a finished product with a variety of engine protection functions. The formula already contains a variety of additives, including anti-wear agents, and the lubricants are most focused on the balance of the formula to ensure adequate performance. Play. Adding other additives by yourself not only can not bring extra protection to the vehicle, but it is easy to react with the chemical substances in the oil, resulting in a decrease in the overall performance of the oil. Misunderstanding 3: When the lubricant turns black, it is time to change the oil. This understanding is not comprehensive. For lubricating oils without a static dispersant, the blackening of the color is indeed a manifestation of the deterioration of the oil, but the lubricating oil used in modern automobiles is generally provided with a quiet decomposing agent. The curing agent washes the rubber film adhered to the piston and the black carbon deposit, and is dispersed in the oil to reduce the formation of high temperature precipitates in the engine. Therefore, the color of the lubricating oil is easily blackened after a period of use, but this time The oil has not completely deteriorated. Misunderstanding 4: The amount of lubricating oil can be increased. The amount of lubricating oil should be controlled between the upper and lower scale lines of the oil dipstick. Because too much lubricating oil will break into the combustion chamber from the gap between the cylinder and the piston to form carbon deposits. These carbon deposits will increase the compression ratio of the engine and increase the tendency to cause knocking; the red hot state of the carbon deposit in the cylinder is also likely to cause premature combustion. If it falls into the cylinder, it will aggravate the wear of the cylinder and the piston, and accelerate the pollution of the lubricating oil. Secondly, too much lubricating oil increases the agitation resistance of the crankshaft connecting rod, which increases fuel consumption.

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China Hardware Business Network


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