[China Glass Network] When winter comes, the inspection of lubricating oil, antifreeze and glass water can not be less. In this issue, we will introduce the precautions for the replacement of special oils for winter cars.
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Lubricating oil attention viscosity
When changing the oil in winter, we must pay attention to choose the appropriate viscosity. Different viscosity levels are suitable for different ambient temperatures. If improperly selected, it is easy to cause problems such as difficulty in starting the engine of the car or even starting. The consequence may be increased engine operating resistance, increased wear and mechanical wear on mechanical parts.
Currently, the lubricants on the market use SAE and other grades of viscosity. SAE is the abbreviation of the American Society of Automotive Engineers. For example: SAE15W-40, where "W" means winter (winter), the smaller the number in front of "W", the thinner the oil, the better the low temperature fluidity, the better the cold start ability, and the lower temperature environment. use.
In the north, the temperature in winter is low. It is recommended to use 0W, 5W or 10W oil. In addition, before entering the winter, check the liquid level of the dipstick to ensure that the oil is not lost.
Antifreeze attention
Another important liquid is antifreeze, also known as coolant, which is an important part of the engine cooling system. In the cold winter, you must use the special antifreeze for winter car. Especially in the north, the weather is cold. Most of the time, the temperature is below zero. If the engine's cooling system is ordinary water, it will form ice, but the car will not be normal. Startup, causing serious damage to the engine.
As far as the choice of antifreeze is concerned, the lower the freezing point, the stronger the frost resistance of the antifreeze. At present, the freezing point of antifreeze on the market has several specifications such as -15 °C, -25 °C, -30 °C, -40 °C, etc. The selected freezing point should be lower than the lower temperature of the region by more than 10 °C.
Many car owners find that antifreeze has a liquid loss phenomenon in the summer, it will be mixed with water to ensure the liquid level is normal, and before entering the winter, forget to replace it with special antifreeze, causing engine failure, etc., so in the winter, be sure to check whether the antifreeze is Special for winter. General family car recommended antifreeze is changed every two years. In addition, pay attention to the color of the antifreeze when changing, the color can not be mixed.
Glass water, antifreeze
Winter is coming, don't forget to replace the glass water for winter.
Glass moisture is used for both summer and winter. Be sure to change to winter glass water before entering the winter. Although it can be replaced with clean water and clean water in the summer, in winter, these alternatives may freeze, so they cannot be used in winter. In the winter environment below 0 °C, the anti-freezing winter glass water should be replaced, or the appropriate proportion of alcohol should be added to the glass water to reduce the freezing point and anti-freezing. 
January 07, 2020