water temp gauge thermometer

• 2023-09-04

The water temperature is between C and H. C represents 60 degrees Celsius. As long as the water temp gauge thermometer pointer reaches C, it indicates that the water temperature has reached 60 degrees Celsius. The temperature represented by the H red grid is 10 degrees. Generally speaking, the normal water temperature during car driving should be around 90 degrees, which means it is one grid above the middle (the middle water temperature symbol is 85 degrees). Exceeding the normal water temperature or falling below 90 degrees is abnormal, especially when the high temperature exceeds 95 degrees. Generally, there are two reasons for the high water temperature: insufficient antifreeze or malfunctioning thermostat. It should be stopped in a timely manner and checked and repaired as soon as the water temperature cools down.

Prolonged loss of coolant can lead to poor cooling of the cooling system, high engine temperatures, and in severe cases, deformation of the cylinder head, piston pulling, and engine scrapping. At present, many car models still use pointer type water temperature gauges. Once the driver discovers that the water temperature gauge pointer is above the normal scale, it cannot be delayed and must be repaired immediately.

More than 95% of water-based antifreeze solutions using ethylene glycol are currently used both domestically and internationally. Compared to tap water, the most significant feature of ethylene glycol is antifreeze, while water cannot. Secondly, ethylene glycol has a high boiling point, low volatility, moderate viscosity, and little temperature variation, resulting in good thermal stability. Therefore, ethylene glycol type antifreeze is an ideal coolant. 

Be sure to pay attention to the quality when using antifreeze. If the quality of antifreeze is poor or even counterfeit, it will not function as antifreeze. The coolant is prepared by mixing antifreeze and water in a certain proportion. Automobile manufacturers usually specify the mixing ratio of antifreeze for different low-temperature antifreeze levels in their user manuals, and also specify the model of antifreeze that cannot be mixed. In general, when the ratio of antifreeze to water is 40:60, the boiling point of the coolant is 106 ℃ and the freezing point is -26 ℃. At 50:50, the boiling point of the coolant is 108 ℃ and the freezing point is -38 ℃. It is generally required to prepare coolant at a temperature around 5 ℃ below the local minimum temperature. The effective use period of antifreeze is usually two years, and when it expires or the coolant is found to be dirty, it needs to be replaced.