Small knowledge of automobile maintenance at low temperature

First, the heating system

Winter is the season to use warm air again, and the heating system will fail if it stops for a long time, so you should first try whether there is hot air, whether the fan is abnormal and whether the air duct is smooth. Sometimes the antifreeze in the warm air water pipe does not flow for a long time, and it condenses and blocks the circulating pipeline. Although it does not affect driving, it is very troublesome to maintain, so if there is a problem, you must go to the repair shop for repair in time.

Second, you need to check the antifreeze.

The amount of antifreeze must be appropriate. The maintenance station suggests changing the antifreeze once every two years, but the mixed antifreeze (especially the water added in summer) must be changed once a year. Be careful not to mix different brands and models of products. Followed by engine oil. There is a high demand for automobile lubrication in winter. If the engine oil is used in summer, it must be replaced. Replace the engine oil with long service time, black color and poor adhesion to ensure smooth engine start.

Third, change gasoline.

You can replace high-standard gasoline in winter. If you use 90 # gasoline at ordinary times, you can change it to 93 # gasoline. Because of the low ambient temperature of cars in winter, the ignition point of high-standard gasoline is higher and the ignition ability is stronger.

Fourth, glass cleaning solution

Although the consumption of glass cleaning liquid will be significantly reduced in winter, it can not be ignored. Some people use clean water and washing water instead in other seasons, but those substitutes often freeze in winter, so don't use them in winter. In the environment below zero degrees Celsius in winter, the antifreeze winter glass cleaning liquid should be replaced, or an appropriate proportion of alcohol should be added to it to achieve the purpose of lowering the freezing point and freezing resistance.

Wax the verb (short for verb)

It is best to give the car a "beauty" before winter. Waxing in early winter is a good way to maintain car paint, because it is freezing after winter, and the number of car washes will be reduced. In addition, the waxed car body is not easy to occupy water and it is not easy to condense into ice in winter.

Six, car lights

The bulb with black headlights should be replaced as soon as possible, and the fog lights and brake lights should also be checked. It is easy to frost in winter, with low visibility and frequent rear-end collisions. Therefore, whether fog lights and high-position brake lights work normally is also the guarantee of driving safety in winter.

Seven, the battery

The battery is most afraid of low temperature, and the capacity of the battery under low temperature environment is much lower than that under normal temperature. Therefore, before the arrival of the cold season, the electrolyte of the battery should be replenished and the specific gravity of the electrolyte should be adjusted. At the same time, clean the terminals of the battery and apply special grease protection to ensure reliable starting and prolong the battery life. If the vehicle is parked in the open air or garage for several weeks, the battery should be taken out and stored in a warmer room to prevent the battery from freezing and damaging.

Eight, tires

In winter, the rubber of the tire becomes hard and brittle, and the friction coefficient will decrease. The tire pressure should not be too high, but it should not be too low. When the outside temperature is low and the tire pressure is too low, the soft tire will accelerate the aging. In winter, it is necessary to clean up the inclusions in the tire tread frequently, try to avoid using tires that have been mended more than once, and replace tires with larger wear and different brands and patterns. There is a great difference between the internal and external wear of tires. In order to ensure safety and reduce wear and tear, tires should be replaced regularly.