When winter comes, do you need to warm up the car, and do you need to warm up the car in winter?

If the temperature is not below -15 degrees, there is no need to heat up the car. In winter, remember to warm up the car in situ.

<> "Hot cars are a commonplace topic, and I tell you about it every year, but there are still many novice friends who are not very clear. When we talk about a hot car, we actually mean the process of starting the engine in advance and letting the engine slowly reach the optimal operating temperature. In the summer, the external environment temperature is relatively high, and the engine will soon reach the best working temperature after starting, so we don't have to consider the problem of hot cars in summer.

In winter, the outside ambient temperature is relatively low, and the sound will be louder after the engine starts, and the speed will be higher, and the gear shift will feel more jerky. Therefore, many novice friends will idle and warm up the car in place, and wait for the engine speed to be reduced to 1000 before leaving, and see that many old drivers are directly starting the car and leaving, I don't know which of the two approaches is right?

In fact, the above two methods are not correct, the correct way to warm up the car is to start and wait for the engine oil to fully lubricate the engine, and then walk slowly at low speed. Regarding the problem of fully lubricating the engine with oil, many novice friends have no concept and do not understand how long it takes to idle before the oil can fully lubricate the engine. The correct way is to get on the car and start the engine, wait for 10 or 20 seconds to start, and then drive slowly at low speed after starting until the speed reaches a normal state.

We often see the old driver start to go this is a subjective misunderstanding, the old driver is not to start and go, but they idle in place for only 10 or 20 seconds, compared to everyone idle at every turn for two or three minutes, these 10 or 20 seconds are easy for us to ignore, mistakenly think that the old driver starts and goes.

A hot car is needed in winter.

How to properly heat up the car is a topic of concern for all car lovers. But before we explain how to heat up a car, let's understand why a car needs to be hot.

After the car has been parked for a long time, the oil in the engine flows back into the oil pan in the lower part of the engine. Therefore, when the engine is started after a long period of inactivity (e.g. overnight), the upper part of the engine is in a state of lack of oil and lubrication. It takes about 10 seconds after the start of the oil pump to deliver the oil to the pistons, connecting rods and crankshafts of the engine, which need to be lubricated the most.

But even if you start the engine and hit the road immediately, as long as you don't slam on the accelerator and keep running at a low speed, the effect is the same as idling.

Before the engine reaches the operating temperature (about 90-110 degrees Celsius), the fuel supply system is still low and cannot effectively vaporize the gasoline completely (as we all know, the temperature of the liquid rises to the boiling point). In gasoline has not yet been vaporized"Wet"When it is liquid, it is not easy to burn and start the engine. At this time, it is necessary to rely on the effect of the choke to prevent part of the air from entering the cylinder, so as to improve the mixing ratio of gasoline and air, and increase the engine speed so that the engine does not stall.

When the normal working temperature is reached, the automatic choke will naturally return to its normal state due to the action of the machinery; And the manual choke car must remember to put the choke back, otherwise because the oil-gas mixing ratio is too high, not only waste gasoline, horsepower is insufficient, and gasoline combustion is not completely black smoke. It takes about seven or eight minutes to ten minutes for a cold engine to reach the normal working temperature, depending on the type of car; And during this time, there is no need to heat up the car in situ, as long as it is not driven at high speeds.

Regarding the lubrication of gearbox gears, this is the most unknown and easy to ignore by ordinary people. Transmission gear oil is the same as engine oil: it flows to the bottom half of the transmission during cold driving.

Only when driving will the bottom gear oil be lifted up due to the operation of the gears and the upper part will be lubricated. This is also the reason why most cars change gears jerkily when they are cold. The solution is not something that can be solved by in-situ hot cars.

Because the gearbox does not have a gear oil pump, only the engine is moving, and the rest of the car is not moving, and the situation can only be improved by waiting until it is actually on the road and driving slowly for a while.

Therefore, when the car has been parked for more than two hours, it is better to warm it up.

Whether you need to warm up the car in winter depends on how low the temperature is, and it is needed for maintenance.

It needs to be warmed up in advance, so that the engine can be protected

In winter, a hot car is required, but not all vehicles need a hot car, it depends on the car insurance.

Nowadays, it is not necessary to warm up the car in places that are not particularly cold. Now there's antifreeze in the oil. Besides, the cars are stored in the garage.

If your car is in the garage, you don't need to heat it up at all, that is, you can build it directly in the garage. But if your car is outside, especially in the northern winter, it will have to be relatively hot.

Do you need a hot car in winter? I think that under normal circumstances, I feel that in winter, I still need to warm up the car, because this has certain benefits for the car, so I still need some hot car in winter.

<> "Do you need a hot car in winter?"

The hot car in winter has touched the hearts of many people, do you need to warm the car? Directly drive and destroy the car? What's the problem of carbon deposits?

The car is parked at night after a long period of time in winter. The lubricating oil will flow back to the bottom of the engine, and even if there is a residue between the parts that need oil to moisten each other, the amount of lubrication can not be achieved, and the low temperature reduces the mobility of the engine oil and reduces the adhesion, so the direct start of the cold car will wear out the internal parts of the engine. Within about half a minute of start-up, the oil is almost dynamic enough to lubricate the components.

Idle warm-up can reduce this wear and extend the life of the machine, whether it is a self-priming car or a turbocharged car, it takes a certain amount of time to warm up the car, and the turbo model needs such an idle hot car movement, for the wool, the turbocharger is cooled by the oil, when the cold car starts, the lack of dynamic engine oil needs to be heated up urgently to have the effect, so it seems that the model with "T" should be warmed up for a longer time than the self-priming car.

Differences between hot cars in the south and north. The climate of the four seasons in the north is the same for people and cars, and the treatment of cars under what climate is also different, and it is necessary to wait for a while after the cold car is ignited in winter, so that the car can also warm up in winter, and people should do warm-up exercises before exercising for fear of cramps, right? Familiarize yourself with the climate, or the results of the circle are inevitable, and then you need to get on the car for a minute or two.

In the south, where the four seasons are not very distinct and very humid, the treatment of the car is correspondingly simpler, and there is no need to feel the environment in particular, no less than 30 seconds within 1 minute. Don't bang the throttle when idling in situ to warm up the car, do you want to speed up the speed and let the oil and water temperature rise, or it comes down to the previous point, the speed rise accelerates the cylinder movement without sufficient lubrication of the engine oil, and the loss of the ballast motor increases fuel consumption, etc., which will also exacerbate the occurrence of carbon deposits.

There is also the water temperature, under the cold car, turn on the hot air after the car is on fire, not only the wind is not hot, but also directly increases the burden on the engine, so that the time to get the warm air is longer, so you should wait for the preheating, and then turn on the warm air, first modulate the external circulation, and change the cold air in the car out (the car is still lower at night, because the temperature of the confined space does not rise with the outside temperature), and then adjust back to the inner circulation after about 1 minute, which is good for the car, and the heating will come faster.

Relevant test results have verified that more than 9% of the wear and tear inside the engine is within a few minutes of direct training after the cold car starts, and the probability of carbon deposition will be greater. Therefore, after logic about these mechanical principles, there is no need to worry about whether to heat up the car, and it is said that the car is a member of the family, so it is right to think about it as a family.

1.When the car is parked for a long time, the oil flows back to the oil pan in the lower part of the engine. Therefore, the engine is started after the vehicle has not been used for a long time (e.g. overnight), and the upper part of the engine is in a state of no oil and lack of lubrication.

About 30 seconds after starting, the oil is delivered to the pistons, connecting rods, crankshafts, and other parts of the engine that need to be lubricated the most, due to the operation of the oil pump. But even if you start the engine and hit the road right away, as long as you don't slam on the accelerator and keep driving at a low speed, the effect is the same as idling. 2.

Before the engine reaches an operating temperature (about 90-110 degrees Celsius), its fuel supply system cannot be completely vaporized due to the low temperature of gasoline (as we all know, the liquid vaporizes when the temperature rises to the boiling point). Gasoline is a "wet" liquid until it is vaporized, which does not easily burn and start the engine. At this time, it is necessary to rely on the choke to prevent part of the air from entering the cylinder, so as to improve the mixing ratio of gasoline to air, increase the engine speed, and prevent the engine from stalling.

When the normal working temperature is reached, the automatic choke will naturally return to its normal state due to mechanical action; The manual choke car must remember to put the choke back, otherwise because the oil-gas mixing ratio is too high, not only waste gasoline, but also lack of horsepower, gasoline combustion is not complete and black smoke will be emitted. A cold engine takes about 7 to 8 minutes to reach its normal operating temperature, depending on the type of car. During this time, there is no need to heat the car on the spot, as long as it is not driven at high speed.