Lubricating oil plays the effect of lubricating, cleaning and cooling the engine, and the engine is the heart of the car. Therefore, it is not too much at all known as the blood of the engine.Lubricant oil is not ...
How to buy lubricating oil
Lubricating oil plays the function of lubricating, cleaning and cooling, and the engine is the heart of the car. Therefore, it is not too much at all known as the "blood" of the engine as the "blood" of the engine.Lubricating oil is very important for cars.At this time, the multi -standard number lubricant that is common in winter or throughout the year should be selected, and a pure brand of high -quality lubricant should be selected. Do not greedy cheap fake oil.Generally speaking, at least the SF or SG -level multi -labeled high -quality engine oil should be used to adapt to winter use.Below, I will answer it in detail for you.China
How to choose lubricant lubricating oil to buy strategy
The selection of lubricating oil is the first part of the use of lubricating oil, which is the key to ensuring the reasonable lubrication of the equipment and giving full play to the performance of lubricating oil.
1. The following three aspects should be considered in the selection of lubricating oil:
(1) The working conditions of the actual use of machinery and equipment (that is, work conditions);
(2) Designation or recommendation of mechanical and equipment manufacturers instructions;
(3) Regulations or recommendations of lubricating oil manufacturers.
2. Selection of lubricating oil performance indicators
The viscosity is an indicator of various lubricating oil classification classification, which has a decisive significance for quality identification and determination.Determination of the device with lubricating oil viscosity is determined according to the design or calculation data to check the relevant charts.
Point is an indicator indirectly indicating the low temperature fluidity of lubricating oil storage and transportation.Experience proves that the use temperature of general lubricating oil must be 5 ~ 10 ° C higher than the pour point.
The flash point is mainly the indicator of lubricating oil storage and transportation and use. It is also used as an indicator for controlling lubricating oil distillation and volatility as the time to produce.The principle specified in the lubricating oil flash point index is to leave a 1/2 safety factor in accordance with the safety regulations, that is, 1/2 higher than the actual use temperature.For example, the oil temperature of the internal combustion engine oil is not more than 120 ° C, so it is stipulated that the internal combustion engine oil flash point is at least 180 ° C.
(4) Selection of performance indicators
There are many performance indicators, and the gap between different varieties is very different. The working conditions of the equipment, the requirements of the manufacturer and the instructions of oil products and the introduction of reasonable decisions should be made.Efforts to meet both the technical requirements of lubrication and economical.

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