Summer is already close at hand, and the season of high temperatures is coming soon. The temperature is not only the temperature, the temperature of the road surface will rise to the height of the fried eggs. This temperature tests the engine of the suction truck . At this time, we should need a bottle of lubricant suitable for this high temperature.
Many old drivers know that we must use highly viscous motor oil when the weather gets hot. This argument is too subjective and not objective. Why do you say this way?
In theory, we should use high-viscosity motor oils in the summer, but the times are progressing in the development of science and technology. Now, the engine oil on the market has changed a lot compared to the traditional motor oil. For example, there are Sl-grade synthetic engine oils that resist high temperature and oxidation resistance, and they become viscous in preheating, and are diluted by precooling. We call him grade 4 motor oil. Low viscosity oils also have good adaptability in the summer like 5w30 and 10w30. Moreover, the development of automotive technology is very fast. The changes in automotive materials, the refinement of processing density, and the development of electronic technologies are now required to bring vehicles to have good oil film and strong continuity, and high viscosity oils. Already out.
The use of oil with excessive viscosity will also increase fuel consumption. The friction of various components of large viscosity vehicles will also increase. In order to overcome these friction forces, the engine must do work, and the engine must use fuel to do work, which is a waste. Now that the viscosity of low viscosity oil has become a trend, although there is no demand for oil in the country, it should not be changed in the future. The viscosity of the oil is large. Although the fluidity is very high at the time when the oil pressure is high, the surface of many parts cannot be lubricated in time. The circulation of the oil deteriorates, and the heat dissipation effect also deteriorates. This can cause the engine of the combined force suction truck to overheat. And the number of oil filters passing through this way is less, and there will be a lot of slag in the oil that is difficult to remove.
In summary, the summer sewage suction truck does not need to use excessively thick oil, and do not think that the greater the viscosity of the oil, the better. The above is a brief introduction of why Xiao Bian did not use high viscosity oils for summer suction trucks. (Wen/Jun Xun)
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