In the daily use and maintenance of special-purpose vehicles, there are often some misunderstandings when some special-purpose vehicle drivers add lubricating oil. We will summarize these common misconceptions as follows and hope to help the driver of the special car drivers.
Misunderstandings I. Lubricants can be added more. Because the amount of lubricating oil should be controlled on the appropriate scale scale, when the added amount of oil is too much, the lubricating oil will be pulled out from the gap between the cylinder and the piston of the vehicle, forming a kind of coke in a high temperature environment. These carbon deposits slowly deposit in the oil pan and even block the oil filter, which leads to an increase in the compression ratio of the engine and thus increases the probability of knocking.
Misunderstanding two, the lubricating oil turned black to change the oil. This is also a wrong point of view. For some lubricating oils that do not contain the corresponding clean dispersants, the color change of the lubricating oil is indeed an important manifestation of oil deterioration. However, most of the lubricants currently used have been added with a decomposing agent. Clean dispersants are divided into detergents and dispersants. The main role is to keep the interior of the engine clean, so that the resulting insoluble material is in a colloidal suspension state, and will not further form coke, paint film or sludge. Specifically, its role can be divided into four aspects: acid neutralization, solubilization, dispersion and washing. Therefore, the color of a lubricating oil added with a clear dispersant does not necessarily need to be replaced.
Misunderstanding III. Special vehicle lubricants are often added without replacement. This is just like the mixing of new and old batteries. Old batteries seriously drag new batteries. In the same way, the quality of old lubricating oils will gradually decline during use. Even if new lubricating oils are added, the lubricating properties cannot be completely restored. Therefore, adding only without replacing is absolutely incorrect.
In addition, it cannot be considered that the additives of lubricating oil are very useful and cannot be used for the addition of some other additives. This will adversely affect the vehicle and even cause more serious consequences.
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