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The five major causes of engine wear:
A. Corrosion and wear When fuel burns in the engine combustion chamber, it will produce many harmful substances. Generally, every 100 gallons of gasoline will produce 1-5 pounds of nitrogen and sulfuric acid when burned. These substances not only cause corrosion to the cylinder, but also pass through three channels. Piston rings (top, middle, and bottom ring) are thrown into the engine and cause metal corrosion to the main components of the engine, such as the camshaft crankshaft, which cannot be eliminated simply by using the lubricating oil.
Second, the rust wear engine after stopping, cooling from high temperature to low temperature, this temperature change process will produce a water condensation inside the engine to the accumulation of water. This can cause serious metal corrosion to the engine, especially when the engine is started again for a short distance. When the engine temperature is too late to evaporate the water vapor, the situation is even worse. This is also the oil can not be solved.
Third, the strong wear caused by dust The engine needs to inhale air when burning, even the best air filter device is also very difficult to absolutely avoid dust inhaled into the engine with the air. As the dust is inhaled and causes strong wear, this wear is not completely eliminated by the lubricating oil. Especially in regions where there is little drought and heavy winds in China, this kind of strong wear is even more pronounced.
IV. Cold-Start Dry Friction Research conducted by General Motors of the United States showed that all oil on the friction interface will return to the oil tank when the engine is stopped for four hours. When starting the engine at this time, because the oil pump is not enough time to hit the lubrication oil to each lubrication location, dry friction that is lost due to periodic lubrication will be generated in a short time, resulting in severe abnormal wear of the engine. This strong wear is simply not solved by lubricating oil. (Another related data study pointed out that this kind of strong wear accounts for more than 70% of the total engine wear.) 5. Normal Wear Wear caused by the normal operation of the engine. After clarifying the causes of engine wear, the role of lubricating oil in reducing engine wear is also clear. At the same time, it is also clear that the use of anti-wear protection products to extend engine life and maintain the importance of the engine.
Moreover, although additives such as anti-wear agents, viscosity index improvers, detergents, detergents, antioxidants, etc. are more or less present in all high-performance lubricants, it should be emphasized that the above-mentioned additives are not equivalent. For professional car care products. In actual use, people often want to obtain comprehensive maintenance products with excellent performance, which requires the selection of a variety of additives, the use of compounding technology and configuration process to produce a composite product with wide applicability. It is not easy to develop a good composite formulation, and the use of additives depends mainly on experimental results. Secondly, there are synergistic effects between different additives, which may be positive effects or negative effects. Therefore, the development of a good automotive maintenance product requires a thorough understanding of the performance of various basic additives and requires a large number of laboratories. And road test. This is why professional car care products formulated from basic additives are fundamentally different from the basic additives used as additives for various oil products.
And this is just one aspect of the complex construction system of the car - maintenance of the lubrication system. Other cleaning and maintenance such as fuel system, cooling system, automatic transmission system, power steering system are also very important, because only their perfect combination It only constitutes the true meaning of the car, and only if each system is running at the same time can it ensure the excellent driving performance of the car.
In actual driving, fuel tanks, oil circuits, carburetors, fuel injectors, combustion chambers, piston tops, valves, etc., in the fuel system will inevitably generate carbon deposits and other forms of impurities due to the accumulation of time, which will lead to poor engine startup. Idle instability, poor acceleration, stalling, shaking, knocking and other faults. In the cooling system, with the normal use of the cooling fluid, its function will gradually degrade. The formation of impurities and harmful reactions will seriously reduce the system efficiency, causing damage to the pump, radiator, water pipe and seals, etc. Severe cylinder liners will be caused Penetration leads to engine scrap. At the same time, the cooling system plays a role in cooling the power steering system, air conditioning system, automatic transmission, etc. If the cooling effect is not good, it will affect the normal operation of other systems, which is the most easily overlooked place. According to statistics from the United States Highway Department, 40% of the breakdown of cars on the highway is related to the cooling system. In an automatic transmission system, contaminated ATFs can cause rough gearbox malfunctions and shifts. However, if the car has difficulties in steering, the steering wheel is trembling and other failures are due to the generation of harmful impurities, paint films and other deposits in the power steering system.
[Solution to the above series of problems]
First wash.
The reason is simple: the presence of carbon deposits, dirt, harmful impurities, and other deposits can seriously affect system efficacy. It's a bit like people need to brush their teeth every day and often take a shower.
The next step is conservation. Choose a good product. Carry out regular or fixed mileage maintenance on the basis of scientific maintenance methods and technical specifications.
When it comes to conservation, it is necessary to understand what is currently indiscriminate cleaning. Then, what is the disintegration cleaning? Without dismantling cleaning, there is no need to disassemble the car, clean the engine (including fuel, lubrication system), automatic transmission system, carbon deposition, sludge and other deposits inside the power steering system.
Modern automobile engines are assembled under stringent process requirements in a constant temperature and static environment, and all the repair facilities cannot meet the assembly conditions. In addition, with the widespread application of EFI, sensing and computer control technologies, the degree of electronicization of automobiles has become higher and higher, and devices have become more and more complicated. When they are disassembled and repaired with carelessness, they can damage sensitive devices. Unexpected loss. This is why performance drops once every time the engine is disassembled.