In winter, the temperature drops and heavy snowfall can easily cause the car to break down. Here are some precautions for car maintenance in winter.
Choose lubricating oil with lower viscosity grade
The lubricating oil used in vehicles includes three types: engine oil, gear oil and grease. They play many important roles in reducing wear, sealing, cooling, cleaning and rust prevention during work. Winter comes, and it needs to be properly adjusted according to the ambient temperature. Choose vehicle lubricating oil, if it is not selected properly, it is easy to cause the vehicle engine to start difficult or unable to start, and the vehicle wear and tear will increase. The consequence may be to increase the resistance of the engine, aggravate the wear of parts and increase fuel consumption.
Choose the right antifreeze coolant
Antifreeze coolant, also known as antifreeze. It plays an important role for the engine not to "overheat". In the cold winter, most of the temperature is below zero. If the engine uses ordinary water as the cooling medium, it may cause the engine to fail to start normally, and cause serious damage to the engine.
For some riders who travel to the northeast and other severe cold areas all year round, they can also choose diesel refrigerant. It can effectively reduce the freezing point and cold filter plugging point of diesel, prevent waxing and solidification of diesel, improve the low-temperature flow performance of diesel, ensure smooth cold start of the engine, and effectively solve the problems caused by sudden temperature drops and cross-regional driving.
Vehicle batteries are more "sensitive" to low temperatures. Under low temperature conditions, the capacity of the batteries will be much lower than at room temperature. That is to say, when the temperature is low, the storage capacity of the batteries will decrease. Domestic riders generally use lead-acid batteries that require electrolyte.
Inspection of the brake system
Pay attention to whether the brake fluid is sufficient and the quality has deteriorated. It should be added or replaced in time when needed. Before winter, check whether the brake fluid is good or bad, whether the pipeline is aging and leaking, whether the air storage cylinder drying tank is effective, prevent water in the compressed air from freezing the brake pipeline, check the thickness of the brake pads, etc. Driving on icy and snowy roads, poor braking is very dangerous.
Inspection of heating system
In winter, in order to drive comfortably and remove the frost on the glass, the heating system is generally used, so before entering the winter, the heating system should be checked and cleaned to prevent the heating system from being used for a long time. malfunction. There are two cases for checking if the heating air fails: 1. The air-conditioning fan is not running, check the related circuits and the motor of the air-conditioning fan; 2. The air-conditioning fan is running, but the air output is small or there is no hot air, you can check the exhaust duct Whether there is blockage; the reason for the lack of hot air is generally that the water in the warm air pipe does not flow for a long time and causes blockage. In short, when driving in winter, it is necessary to be cautious and check it every time before driving. After all, safety is the most important thing.