Oil Addition Skills, Daily Use of Lubricating Oil Four Errors

Car lubricants are used very frequently during maintenance. In addition to protecting the engine and reducing the number of oil changes, high-quality lubricants can also save gasoline expenses. In this season, we should also pay attention not to cause automobile failures due to improper use of lubricating oil. The "improper" method of use generally stems from the four "misunderstandings" of lubricants by friends.

For the following four "misunderstandings", China international auto parts exhibition gave a professional explanation:

Misunderstanding 1: Add more lubricating oil

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 enter the combustion chamber from the gap between the cylinder and the piston to form a carbon deposit. These carbon deposits will increase the compression ratio of the engine and increase the tendency to knock. The carbon deposits in the cylinder are hot and easy to cause pre-ignition. If it falls into the cylinder, it will aggravate the wear of the cylinder and piston, and it will also accelerate the pollution of the lubricating oil. Secondly, too much lubricating oil increases the stirring resistance of the crankshaft connecting rod, which increases fuel consumption.

Misunderstanding 2: When the lubricating oil becomes black, it is time to change the oil

This understanding is not comprehensive. For lubricating oils without a clear dispersant, the darkening of the color is indeed a sign that the oil has been seriously deteriorated, but the lubricating oils used in modern automobiles are generally added with a quiet decomposing agent. This detergent removes the adhesive film and black carbon deposited on the piston, and disperses in the oil to reduce the formation of high-temperature deposits in the engine. Therefore, the color of the lubricating oil tends to become black after a period of use, but this time The oil has not completely deteriorated.

Misunderstanding 3: Lubricating oil is often added without replacement

China international automobile wheel fair believes that it is correct to always check the lubricant, but only supplementing and not replacing can only make up for the lack of oil quantity, but it cannot fully compensate for the loss of lubricant performance. During the use of lubricating oil, the quality will gradually decline due to pollution, oxidation and other reasons, and there will be some consumption, which reduces the quantity.

Misunderstanding four: additives are of great use

Real high-quality lubricating oil 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 lubricant is most particular about the balance of the formula to ensure the full performance of various properties. Adding other additives yourself will not only bring extra protection to the vehicle, but will easily react with chemicals in the engine oil.

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