Regarding whether to ignite and preheat in advance before driving in winter, this topic has always been controversial in the automotive repair industry!
Some people say that the car manufacturing technology is very mature now and there is no need to preheat in advance. What's more, the car will produce a lot of carbon deposits at idle speed!
seems to make some sense, but why do many veteran drivers strongly demand that they preheat in advance when using their cars in winter? Is their concept old, or is it really harmful to the car if they don’t warm up in advance? Let’s take you to take a look!
Careful friends may not find that in fact, many cars have clearly stated that the instructions are clearly stated. The car does not need to be ignited in advance after cold start, and you can drive directly after starting.
But this statement is not very accurate in practice. Because in real life, many cars have various engine failures because they are not warming up before driving in winter and because they have been driving for a long time. The reason why
says this in the manual is actually mainly referring to some new models. Secondly, car companies promote this in this way, in order to better show consumers how advanced and mature their car manufacturing technology is.
Because the new car is within 30,000 kilometers, even if it is driven in such cold and violent manner, there are fewer failures of one kind or another. However, after driving to 50,000 kilometers, the engine problems caused by not heating up the car for a long time will also follow!
However, since this failure response is not very timely, few drivers will think of the engine failure caused by long-term failure of the car. Therefore, there has been a lot of controversy about whether to warm up the car in advance!
In fact, not warming the car for a long time will aggravate the cold start wear of the car, and it is also inevitable to wear the engine. It not only leads to an increase in fuel consumption of the car or an increase in carbon deposits, but may lead to gas bleed in the cylinder and burning of engine oil!
Because as long as it is a car engine, it is an thermal efficiency engine. For example, ordinary low-power family cars, the temperature of the engine under normal operation will generally be set at 90 degrees . For better cars, the normal temperature of the engine may be set higher, and it can even reach 105 degrees.
This means that when a car is driving, the engine temperature reaches this value, it can be said that it has always been in the cold car stage. Only when the engine is close to this temperature will the wear of each component be reduced, and its performance, including power and fuel consumption, will it be in a balanced state. On the contrary, the wear inside the engine will intensify and the performance will not be performed well!
Then there are some cars with larger kilometers. As the weather temperature drops, after cold starts, the engine will be accompanied by a very high buzzing sound, which may last for more than ten seconds or half a minute.
In fact, this is because after the car starts, engine oil is a process of slowly rising from oil pan to the oil channel, and then slowly entering piston , connecting rod, crankshaft and other components. Only by completing this process can the oil pressure inside the engine reach a relatively balanced state.
So from the above two points, when using a car in winter, it is still necessary to warm the car after starting the cold car. Although the engine temperature cannot reach 90 degrees immediately, at least the closer it is to this temperature, the less wear it will cause to the engine.
generally uses about 3 minutes as the reference range for a normal hot car, because this time is enough to allow the oil in the car to reach a relatively balanced state, and the heat value generated by the fuel inside the engine can also be close to about 30 degrees. So when you drive slowly at this time, the wear of the engine will be controlled to a very small side.
Of course, if is in the northern region of , due to the low temperature, the time for the hot car may also be slightly longer. In fact, how long does it take to warm the car? I think it depends entirely on your actual car use environment, and there is no unified standard.
As for some people saying that idling in place will cause the engine to produce carbon deposits , actually cannot be said to be wrong about this statement, but it cannot be said to be completely correct. Because in the practice of auto repair shops, most cars that cause excessive carbon deposits in the engine are mainly due to the excessive number of kilometers of the car, the wear and old cylinder blocks of the engine, and the untimely maintenance.
Although idle speed does produce some carbon deposits, for a new car that travels tens of thousands of kilometers without any failures, the impact is minimal. If the car is maintained regularly, it can even be ignored!
is OK. The above is an analysis of whether to warm up the car in advance when using it in winter. Drivers can not only reduce engine wear, but also maintain low fuel consumption for a long time. This is a harm to the car!
