Everyone knows that it is necessary to warm up the car. Do you need to warm your car in summer? How to warm the car correctly?

At low temperature, the evaporation of gasoline is poor, and the intake rolling speed is too low, which is not conducive to the complete atomization and combustion of gasoline and the heating of the engine. Too fast will increase wear and tear. On the one hand, the fluidity of engine oil is poor, on the other hand, the fuel injection is large and evaporation is poor during cold start. The wet wall effect of gasoline will make some gasoline remain on the cylinder wall, dilute the oil and reduce the lubrication effect. But don't worry too much, just say that the probability is relatively high, and there will be no problem immediately. As long as you don't always idle or step on the accelerator to accelerate to three or four thousand rpm, there will generally be no problem.

According to statistics, engine parts wear accounts for more than 90%, which is caused within three minutes after the cold car starts. After the car is parked for a long time, the oil returns to the oil pan at the lower part of the engine. After ignition, there is no oil on the upper part of the engine and there is a lack of lubrication. Because of the operation of the oil pump, about 30 seconds after the vehicle starts, the oil must be transported to the piston that needs lubrication most, and the lubrication of the connecting rod also has the same problem. Many old drivers usually have a drink slowly after driving and wait for a few minutes before driving. The reason is that the number of revolutions will increase during cold start, and the engine is worried that abnormal lubrication will cause serious wear; The weather is very cold, and the heating in the car is very comfortable after the water temperature rises. Cars need to be warmed up at any time, and the correct warm-up method can reduce engine wear.

The third method is once and for all, that is, using windshield antifogging agent. Spray on the windshield and wipe it with a towel. The principle is also very simple, that is, the surfactant makes the small water droplets on the windshield become water films, so as not to block the line of sight. When the engine water temperature rises, turn on the warm air to dry the water film, which will still be effective next time. But the disadvantage is also obvious: when the temperature is too low, the water film on the windshield may freeze. So if you are in the northeast, the weather of MINUS ten degrees is not suitable for this.

The correct way to warm up a car in summer, because the temperature is high in summer and the car engine heats up quickly, so in winter or at other times, if the car engine speed drops below 1000 rpm, you need to warm up and step on the accelerator slowly to speed up the car, so as to minimize the wear and damage of the car engine and car electronic components. This is why we need to warm the car now, but the reason for warming the car is not only to heat the engine, but also to return the oil flowing into the bottom to its original working state, which is the case all year round, not just in winter. If I have to say an exact number, I think I control the speed most of the time. 1500-2000 is the best. However, when overtaking or shifting gears, occasionally the speed is lower than 1500 or higher than 2000, which has little effect. For example, if you want to get out of the underground garage, you can't get up at low speed. Step on it at this time. In short, just one sentence: drive gently in the way you usually drive.