Warming up a cold engine: An alternative opinion. Do I need to warm up the engine? Whether to warm up the engine

Car operation in the cold season has a number of features, the knowledge of which will allow you to guarantee complete trouble-free use of the vehicle. In frosty conditions, technical fluids and various moving parts of a car engine may malfunction, which in turn leads to increased wear. That is why before starting the movement. it is required to preheat the vehicle, which will solve the problem with the low engine temperature.

Warm up or not - that is the question

There is no consensus among car owners whether it is required to preheat the car in the winter season. If earlier the old carburetor cars required such preheating without fail, today, thanks to the use of high-quality modern synthetic lubricants and fully automated injection engines, there is no need to preheat the car.

That is why most engine repair specialists and ordinary car owners note that it is no longer necessary to warm up cars for 5-10 minutes in winter. Literally 1-2 minutes of idling will be enough, after which you can immediately start moving the car.

Preheat the engine in winter

If you have already decided to warm up the car engine in the cold season, then you should remember that such a warm-up should be performed exclusively at idle. You should not accelerate sharply and raise the engine speed above the 2000 mark, since in this case the car will not only not heat up, but the engine will also have increased wear, which will subsequently lead to the need for expensive repairs.

The duration of such a winter warm-up of a car engine will directly depend on the temperature outside. If overboard is approximately near zero, no prolonged warm-up is required. One minute of engine idling is sufficient.

But at temperatures down to minus 10 degrees, two minutes of idling is enough. During this time, the oil will slightly warm up and will provide high-quality lubrication of the moving elements.

At ambient temperatures below minus 20 degrees, let the engine run at low idle speed for about 5 minutes. During this time, the car's stove will heat up and the interior of the car will become warmer. Remember that at such low temperatures, you should not immediately turn on the stove for heating after starting the car engine, since the car in this case will warm up much longer. It is necessary to let the engine run for about 3-4 minutes, which will allow the heater radiator to warm up, after which you can turn on the warm air supply, and in the few remaining minutes the engine will finally warm up, and the temperature in the cabin will rise to a comfortable level.

Whether it is worth using the car in extreme frosts is up to each car owner individually. Someone constantly operates a car in winter, regardless of the weather on the street, but someone still decides to give up trips in such a hellish cold. It should be said that at extreme negative temperatures, all systems and components of the car have an increased load. Therefore, even with a high-quality warming up of the car before driving, there is still increased wear and tear, which can lead to the failure of various components and assemblies. Especially in winter, at temperatures below minus 30, the car engine, battery and various suspension elements, in which rubberized parts and gaskets are used, will suffer.

In some cases, after a long parking of the car in the winter season, certain difficulties with starting the engine may be noted. A dead battery can become a problem, as it does not hold a charge well in the cold and does not provide the required starting current for starting a car engine. In this case, it is best not to try somehow from the pusher or after lighting the car to start it, you should dismantle the battery, charge it at home in a warm place, which will solve the existing problems with the operation of the car in the winter season.

When warming up the car engine in winter, try to pay attention to the idle speed of the power unit. Usually, the automation independently raises the idle speed on a cold engine and, as it warms up, lowers it to 600-800 rpm. That is why, as soon as the idle speed has dropped to its minimum, you can fearlessly start driving.

We operate the car in winter without preheating the engine

Indeed, high-quality synthetic lubricants, which are widespread today, retain all their performance characteristics and viscosity indicators, even with a deep minus. That is why such oil will not need any additional heating. Modern cars use an appropriate injector that is fully electronically controlled. At negative temperatures, the electronics simply increase the enrichment of the fuel-air mixture, and the car keeps high revs until it warms up completely. That is why such modern cars, which use high-quality oil, do not need any additional heating.

Remember only that when operating such a car with a cold engine, you should not immediately increase the engine speed. During the first 3-5 kilometers after the start of the movement, a certain accuracy should be observed, slowly and smoothly accelerating the car, without spinning the engine more than 3000 crankshaft revolutions. During the first few kilometers of the journey, the engine, gearbox and other components will completely warm up, after which it will be possible to use the car in full mode.

Conclusion

Correct use of the car in winter will allow you to guarantee trouble-free operation of the vehicle, avoiding any serious breakdowns, which in turn will reduce your maintenance and maintenance costs. To warm up or not to warm up a car engine is the decision of every car owner. Remember that this procedure is recommended for vehicles over 10 years old. But on modern and well-maintained cars, such additional engine warm-up is no longer required.

It seems that everyone does it: they start the car in the morning and sit inside, without moving, until “ the engine will warm up«.
If you are one of those who believe that this is important and correct, be sure to read this article!

You are probably doing this to protect the engine. So, they became a victim of a myth that actually brings more harm than good.
Business Insider spoke to former University of Wisconsin-Madison Ph.D. drafter Stephen Chiatti about the pervasive myth of warming up a car in winter.
For the past 26 years, Chiatti has been studying internal combustion engines, i.e. motors that burn liquid fuels to generate energy. He currently even oversees the work of the Argonne National Laboratory in Illinois.
In short, the conclusion of the Expert Advisor is as follows:
Running a car engine at idle in cold weather not only makes you waste extra fuel, but also harms the engine.

Because when the engine is running and the car is at a standstill, the frozen oil does not have time to reach the cylinders and pistons in time. The result is an increased, unacceptable load on them.
How it works.

Under normal conditions, your car engine runs on a mixture of air and evaporated fuel - let's take gasoline as an example. The mixture enters the cylinder, the piston compresses it - and this leads to a micro-explosion, which gives energy to the engine.
But when it's cold outside, gasoline evaporates badly. Initially, your car compensates for this by adding more gasoline to the mixture, so at first the engine runs at higher revs. And this is where the problems begin.
Here is an animation that shows how the cylinders in a car work to generate energy:

“The problem is that when too much fuel enters the combustion chamber, some of it remains on the cylinder walls. - says Kyatti. Gasoline is a great solvent, and it really flushes the lubricants off the walls when you start the engine in the cold. This is especially important if the car was parked on the street for a long time and did not start. "
This leads to insufficient lubrication of the piston rings and cylinder liners. And they are critical for starting the cylinders and pistons, i.e. in order to " breathe life»Into the engine of your car.
Now again and “ in a simple way". The main problem with frost is that it thickens the oil. As a result, friction units work "dry", wear of mechanical parts in this case occurs much faster than usual.
But in what case will the engine warm up faster - if you drive or if you stand?
Conclusion: contrary to popular belief, running the engine at an idle year does not extend its life, but only shortens it.

By the way, this is what the manufacturers of modern cars are talking about: none of them NOT recommends warming up the engine when parked.
And further. If you have Automatic transmission, then you need to warm it up too. Of course, the only way to do this is to drive slowly with gentle control of the gas pedal. For this, a couple of tens of seconds is enough: just that much is usually required to leave the yard.
A simple solution.

After your engine warms up to 4.4 degrees Celsius, revs will begin to drop. And you will see it on the tachometer scale. Along the way, you will notice that warm air began to flow into the cabin. But don't confuse radiator heat with engine heat!
“Running at idle speed will cause the engine to warm up more slowly than usual. This means that the electronics of the car will continue to actively saturate the cylinders with the fuel mixture, ”says Chiatti.
So the quickest and best way to warm up the car is to wait 30-60 seconds after starting the engine and start moving calmly. Or you don't have to wait at all.
The main thing in this case is not to actively press the gas pedal in the first minutes of movement.
“Be gentle with the car for the first 5-15 minutes of driving. This will save the motor from unnecessary stress, ”the expert recommends.
Plus, it’s corny unprofitable. An insufficiently warmed up motor spends a minimum 12% more fuel, than usual. If you press hard on the gas pedal immediately after entering the road, then you are simply wasting excess fuel without gaining any benefits. A mechanical engineer from the Massachusetts Institute of Technology assures us of this.
The roots of this myth.

Some myths are very tenacious, and this one is no exception. The basis for it was the era when all gasoline engines were carburetor... But back in the 1980s, electronic fuel injection began to be used, which did it. the rule "5 minutes" irrelevant.
The key difference here is that electronic fuel injection automatically adjusts the air-fuel mixture that falls into the cylinder. The carburetor did not know how to do this: it did not have a special sensor for this.
But since cars with carburetors are no longer made, there is no need for idling.

In the winter season, common sense tells us that before going on a journey by car, we must first start the engine and let it idle, that is, until the engine warms up. But is it really necessary? On this score, there are many different opinions, about which motorists like to talk for a long time and argue for hours. But in fact, the question is interesting by motorists: is it necessary to warm up a cold engine, and especially in winter? It turns out that, contrary to popular belief, there is a specific answer: the very heating of a cold engine before a trip does not extend its service life in any way. Are you surprised?

After reading this article, you will know that prolonged engine warm-up in winter can lead to a lack of lubrication inside the engine block, and as a result of frequent engine warming up in winter, you can significantly reduce its resource due to a decrease in the quality of lubrication of the internal components of the power unit.

In a nutshell, an internal combustion engine uses pistons, which in turn compress an air / fuel mixture (a mixture of air and fuel) to be ignited by a spark plug in the combustion chamber. Fuel ignition is an uncontrolled mini-explosion inside the combustion chamber, as a result of which the energy is released, which just "feeds" and sets in motion the internal components in the engine.

When the engine is cold, gasoline is less likely to evaporate in sufficient quantities. Accordingly, it turns out that with a cold engine (for example, after an overnight parking on the street in frosty weather), the fuel mixture may not be entirely suitable for its optimal ignition.

Modern engines with electronic fuel injection have different sensors that, depending on the engine temperature and the outside temperature, signal the engine control unit for additional fuel injection into the combustion chamber. That is, in fact, if in the cold season gasoline evaporates poorly, then the electronics of a modern car automatically feeds more fuel to the cold engine into the combustion chamber. And this will continue until the engine warms up to + 4-5 degrees.

As a result, it turns out that during warming up at idle speed of the engine, more fuel enters the combustion chamber than is required when the engine is in a warm state. Thus, according to leading automotive engineers, all additional fuel is deposited on the cylinder walls of the engine and can lead to further leaching of the engine oil. We would like to remind you that gasoline, being an excellent solvent, when starting a cold engine, begins to quickly flush out the engine lubricant itself from the cylinder walls. True, we can agree with many here that during a short warm-up of the engine at idle, this process can hardly reduce the resource of the engine itself. But if you regularly warm up a modern car as before, in the old fashioned way, then for a long period of time due to the constant lack of engine oil inside the engine, its service life can be significantly reduced.

For example, the piston rings and the cylinder walls themselves suffer from a lack of lubrication in a cold engine. Indeed, due to the fact that excess gasoline, in fact, instantly dissolves, the production of cylinder walls and piston rings increases.

In addition, do not forget that due to the increased fuel supply, when the engine warms up, fuel consumption increases significantly.

This is why most car manufacturers advise in modern cars not to warm up the engine for a long time. For example, many car companies recommend drivers to warm up the car while driving at low revs, and then, as soon as the engine warms up to 4 degrees, the electronics will automatically switch fuel injection into the engine combustion chamber to its normal value. By the way, take a note, it is from this moment that the increased fuel consumption in the car will also decrease, which is usually noted immediately after starting a cold engine.

Note also that idling actually warms up the engine more slowly. The engine can warm up much faster on the move, in motion. Moreover, it should be noted that even if a few minutes after starting the cold engine warm air begins to flow into the interior of the car, this does not mean that the car's engine began to warm up quickly.

According to many engineers, the following algorithm is ideal: start a cold engine, let it run for 1-2 minutes (at this time, you can clear the car of ice and snow) and only then, at low revs, hit the road. True, one must take into account the weather conditions: if there is a severe frost outside (more than -10 degrees), then it is advisable to increase the heating of the engine at idle speed at least twice.

Thus, from all of the above, it becomes clear that you should not unconditionally listen to the advice of automakers, some of which in their recommendations often state that the engine does not need to be warmed up at all. You just need to remember that getting under way immediately after starting the car in winter is fraught with unnecessary load for the motor.

But it is also not worth delaying the idling of the engine during warm-up. We have already said that 1-2 minutes is enough for this (with a slight frost), then you can start smoothly and slowly, moving at low revs. To fully warm up the car engine while driving, depending on the air temperature, it will take only an average of 5 to 15 minutes.

Where did the myth come from that you should always warm up the engine to operating temperature before driving?

In the past, warming up the engine to operating temperature was mandatory for all cars equipped with a carburetor injection system. Recall that the carburetor in older cars mixed gasoline and air, thereby creating a fuel mixture for the engine. Unfortunately, the carburetor did not have the sensors found in all modern electronic injection vehicles today. Accordingly, due to the lack of sensors in carburetor cars, the amount of fuel mixed with oxygen was not regulated during the warming up of the car. As a result, in order to hit the road in the old car in the winter, it was necessary to completely warm the engine to operating temperature.

That is why there is still a persistent myth that all cars (even new ones) must definitely be fully warmed up before operating in winter.

But if you do not own an old carburetor car, then there is no need for you to fully warm up your car before driving. It will be best if, after starting the engine, you give it a few minutes to get a little temperature, and then go on the road.

Will driving on an unheated machine harm the power steering?

But what about the power steering? After all, he also uses grease for the operation of the steering booster, and in the cold it also tends to freeze. What if you can't warm up the car for a long time, and driving with an unheated hydraulic booster is also dangerous?

This is not really a problem as the power steering gear oil warms up very quickly. Yes, of course, in the first minute after starting a cold car in winter, the steering wheel will be very heavy, because in the cold, the oil will be thick in the hydraulic booster. But after you start and drive for just 1-2 minutes, the steering wheel will become light and the power steering gear oil is fully warmed up.

The only thing is that in the first minutes of the movement of the car, you should not make sudden movements with the steering wheel, you must be careful, since the steering wheel will be heavy at this time. By the way, if you warm up the car for a long time at idle speed, then do not count on the rapid heating of the fluid in the hydraulic booster. Especially when you do not move the steering wheel during warm-up. The point here is that due to the lack of movement of the steering wheel, the power steering pump does not pump the required amount of fluid and, accordingly, the process of warming up the power steering transmission oil will go very slowly.

Perhaps advice not to warm up any cars - is it someone's conspiracy?

There is an opinion (especially among many car enthusiasts, and not among professionals) that the recommendations of car manufacturers regarding the optional warm-up of the engine after its start is nothing more than a global conspiracy of the car manufacturers themselves, directed against all car owners of vehicles in order to reduce the time of owning cars from - for premature failure of the power units themselves. Of course, this version does not stand up to criticism.

Think hard, why would car manufacturers need this? Even if we assume that they just needed it, then it is unlikely that in this way they would try to reduce the resource of their car products. After all, there are many other, and less noticeable, ways to reduce the vehicle's mileage.

The engine is considered warmed up when all its working elements reach the desired temperature regime. The coolant is heated very first. This process can be controlled by the arrow on the operating temperature indicator. Then the elements of the upper part of the motor begin to warm up.

To what temperature should you warm up? The slowest is the heating of the oil in the sump. That is why, even when the coolant has reached the required temperature, the fuel consumption is carried out at idle and may decrease for some time. The catalyst is heated for the longest time.

In general, the speed of warming up the vehicle depends on the operating mode of the motor. The average engine warm-up time is 10-15 minutes at -20 degrees. Warming up should be done up to operating temperature.

Do I need to warm up the engine in winter? All drivers know that the engine has a negative attitude towards frost. This is due to the fact that engine oil thickens when exposed to low temperatures. And when critical temperature levels are reached, it stops flowing altogether. This leads to the fact that friction units begin to function "dry". Mechanical losses increase significantly.

Many drivers start to warm up the engine before driving in different ways in winter. Each driver sets his own interval for warming up the car engine. Some wait half a minute and get under way, others wait 5-10 minutes.

There are also motorists who try to warm up the engine in the summer. Do I need to warm up the car engine in the summer? In addition, there are people who believe that there is no need to warm up the engine before a trip - this is a relic of the past and, among other things, leads to additional fuel consumption. Why warm up a car engine? What should you be afraid of?

Negative and positive aspects of engine warming up

Should you warm up the engine? Consider the main negative and positive aspects of the situation when the driver did not warm up the car engine in winter:

• Experts believe that engine oil is the "blood" of a car. When the engine is turned off, oil begins to seep into the sump. It remains in the pallet until the next engine start. Oil drips off the walls and other elements. Before starting a ride, oil must fill all channels, lubricating valves, shafts, cylinders and more. In winter, the oil is thick. The car does not start well. It passes through all channels with great difficulty. That is, if you do not perform a high-quality warm-up of the engine, then its wear will be high. A warm engine works better. It needs to be warmed up.
• The oil scraper and compression rings are located on the piston bore. They are designed for oil removal, compression. They are located close to each other. They touch the cylinder and carry a considerable load. We know from physics that when heated, the expansion of the cylinders is noted. As the temperature drops, the cylinders return to their previous dimensions. If we do not warm up the engine, then the rings in the cylinder will be clamped excessively. When starting the engine, it is difficult for them to climb the surface of the cylinder. The heating procedure helps the metal to expand and make all of the above operations easier.
• The oil filter is a complex device. Its main element is special paper located on the metal case. If the oil is liquid, then it passes through the filter element without hindrance. The filter protects the motor from dirt and dust. It is very difficult for grease to pass through the paper. Unfiltered oil gets into the motor. When the engine warms up to 60-70 degrees, the oil becomes liquid, it easily passes through the filter without closing the bypass filter. The increased level of dirt contributes to the rapid wear of the engine.
• Hydraulic lifters and hydraulic tensioner are needed to correct the operation of the valves. These devices pump oil into themselves and tighten the chain, aligning the valves. If the lubricant is cold, then the work of these devices is of poor quality. What might be required to correct the problem? By performing a warm-up, we increase the efficiency of the engine.
• The oil sensors also need to be warmed up. If this is not done, then you can face such a situation when the engine is "squeezed out". This is due to the excessively thick and unheated oil. The machine begins to inform that the oil level in the sump is critical.

Why is it impossible to warm up the car engine? Are there any positive aspects in the absence of high-quality engine warm-up? They exist, but, unfortunately, they cannot cover the abundance of negative sides.

In the absence of heating, fuel energy is consumed much less. "Starting up" the car in a short time without warming up emits less toxic substances. By not heating the engine, we contribute to the environment. In the process of heating the engine, a large amount of harmful substances is emitted into the atmosphere.

Diesel and gasoline engines are different from each other. The diesel engine runs smoothly in summer. It is very difficult to do this in winter. The fact is that the combustion process is carried out not with the help of a spark, but by heating the diesel fuel and compressing it under pressure. In this regard, winter and summer diesel fuel is distinguished. Summer diesel fuel is thicker than winter fuel.

A diesel engine needs a warm-up period in the same way as a gasoline engine. However, it will take much longer to warm up a diesel engine during the cold season. If the temperature approaches zero, then you need to think about replacing the diesel fuel. Do I need to warm up the injection engine? The answer is yes. Warming up is carried out in the same way.

If the motorist decides to drive on a cold engine, then the car should go slowly. The number of revolutions should not exceed 2000 per minute. It is necessary that the oil is fully warmed up. All parts must be well lubricated with engine oil.

What is the best course of action - to warm up the engine or not?

Do I need to warm up the engine in winter or not? Each driver must decide for himself whether to warm up the engine in winter or not. Do not forget that there are two periods - summer and winter. How to properly warm up the engine? How long does the motor need to warm up? Winter is famous for the presence of freezing temperatures, which sometimes reach -30 and below.

In such a situation, it is advisable to warm up a running car engine for at least 15 minutes. This time will be enough for all the working components of the motor to reach the desired temperature. At a temperature outside the window - 15, −20 degrees, the amount of time for warming up can be reduced (5-7 minutes).

Do I need to warm up when it's warm? Experts say that in the summer you should not pay special attention to warming up the vehicle. It will take 5 minutes to warm up the car. If it is extremely hot outside, then one minute will be enough to warm up the car.

Thus, in winter it is necessary to warm up the vehicle for at least 10-15 minutes. Even if you notice that the load on the pistons has decreased, it is necessary to withstand a certain period. It is important that the cylinders, all shafts and other working elements are warmed up to the desired temperature. By warming up the engine, the motorist protects it from premature wear.

It is advisable to carry out warming up only after a long standing of the car, for example, in the morning. If you leave the car for 30-60 minutes, then on your return 3-4 minutes will be sufficient. If the car has been standing in the cold for more than six hours, it is advisable to warm up the engine.

Daily warming up and harm to the environment

Many car manufacturers and experts recommend not focusing on warming up the vehicle. And here it is not about saving the buyers' budget. They are guided by such an argument as ecology. The level of toxic substances in the trigger mechanisms is high. So, in European countries it is forbidden to warm up the car.

If you don't have enough time to warm up the machine every day, you can install an automatic start system. It starts up remotely, the driver gets into a heated car.

How many drivers, so many opinions. Remember that the engine is the heart of the car. It is necessary to take care of it with special attention. Whether it is necessary to warm it up is up to you.

To begin with, it is worth noting that the question "whether it is necessary to warm up the injection engine" sounds somewhat wrong. Regardless of the type of fuel supply, whether it is an injector or a carburetor, the engine is started, and its further warming up occurs according to the same scheme. Therefore, let's find out if the engine needs to be warmed up at all.

Disputes over warming up never subsided, and car owners, having split into two camps, constantly argue about the need to warm up the engine, and about the futility of this venture. Someone sits down and immediately drives, someone heats the engine to operating temperature, and only after that begins to move.

Adherents of the theory "sat and went" as a rule refer to reputable comrades from cool auto repair shops who have never warmed up and everything is great with them. And according to my personal experience, they say, I never warmed up and it's okay. As a last resort, the notorious argument IMHO is used.

The difficulty of an objective assessment is that:

• wear of engine parts is a very long process;
• each driver's driving style is different.

That is why it is difficult to determine how long your engine will work if you constantly warm it up, or not at all. But the experts' statements that 75 percent of the wear occurs at the time of its cold start, personally, I have no doubts about whether it is necessary.


The author has always been an adherent of the warm-up theory, but did not set the goal of convincing someone before writing an article. Whether it is worth warming up the engine is in any case decided by the owner of the car.

Engine warm-up theory

All engine parts, cylinders and pistons are no exception, made of metal. Pistons are most often made from light alloys of aluminum, cylinders from metal and cast iron. Here, first of all, it is worth remembering physics and the fact that when the bodies are heated, they expand, and the heating time and the coefficient of expansion depend on what this body is made of.

All engine parts are tuned in such a way that the clearance between the cylinder and the piston is minimal. This gives the least energy loss at the moment of ignition of the fuel mixture. Until the parts are heated to the required temperature and have not expanded, consider that your engine does not work as intended by the manufacturer. And to be absolutely precise, the cylinder-piston group of your engine undergoes colossal loads, and is subject to the greatest wear when it heats up to operating temperature. Is it worth it to start moving and additionally load the engine?

Warming up the engine in winter

It's one thing when it's + 10-15 outside, and quite another when the air temperature is negative. A number of other factors come into play here.

One of them is the viscosity of the oil, which is very important for the operation of the engine. At the time of starting the engine in winter, the oil in the sump reaches its maximum viscosity, which means that it cannot fully lubricate all the parts, the load on the oil pump also increases significantly. Yes, oils are different, yes there are SAE 30 and 40, but even they have their limit.

The lower the air temperature, the higher the oxygen content in it. And the more oxygen, the poorer our working mixture. This is one of the reasons why it is more difficult to start the engine in winter. On old, carburetor engines, this problem was solved by pulling out the suction, which led to the closure of the damper in the carburetor chamber, and, as a consequence, the enrichment of the mixture.


In the injector, this issue is dealt with by automation, setting early ignition at the time of start and increasing the fuel supply, increasing the engine idle speed.

How much should you warm up?

Warming up the engine in winter is not such a tedious process, because while you are sweeping snow from the car, you are cleaning or warming windows and mirrors (if this function is available).

How much should you warm up? It will be enough 3-5 minutes, during this time the engine warms up at least a little, slows down. The oil needs to be warmed up, only then will it fully lubricate all rubbing parts.


That's when it's time to start moving. But even in this case, you cannot give a lot of gas, 2000 -3000 rpm, no more, do not forget that the operating temperature is 80-90 degrees, and while the indicator is less, you should not reckless. In cold weather, the transmission also experiences increased loads, the oil in the box gets stuck, which is why it is so difficult to change gears at the very beginning of the movement on the mechanics, and the automatic switches jerkily.

Warming up the diesel engine

Separately, it is worth discussing the topic of warming up a diesel engine. It's no secret that starting a diesel engine in frost is much more difficult, and this is due, first of all, to the peculiarity of diesel fuel ignition. In frosty conditions, diesel becomes viscous, and it becomes difficult to spray it with nozzles. Fuel seasonality plays an important role here.

There are three types of diesel fuel, each with its own cetane number, flash point, cloud point, and others:

1. summer. It is used at air temperatures from 0 degrees and above;
2. winter, applies up to -30 degrees;
3. arctic, used in the extreme north.

Many diesel owners experience problems with starting the engine, precisely because of the use of summer fuel in the winter.

A diesel engine differs from a gasoline engine in self-ignition, due to the sharp compression of air, it heats up to a temperature of 700-900 degrees, and the injected fuel ignites. Forced cold air at subzero temperatures exacerbates the problem. The use of glow plugs is designed to solve this problem. They heat the air in the combustion chamber to the required temperature, and after that the engine can be started.

Installation of various additional pre-heaters makes it possible to start the car engine more confidently in winter. This is true for both diesel and gasoline (injection and carburetor engines). This will allow the engine to warm up faster. Fortunately, the market now offers a lot of solutions, and all you need to do is choose the most optimal one.

Conclusion

If, before reading this article, you had questions about whether to warm up the engine before driving, whether it is necessary and why, now we hope they have disappeared.

The engine is important and needs to be warmed up. Regardless of the type of fuel and its supply system;
Engine warm-up time is dependent on a number of factors and may vary with ambient temperature, engine displacement and RPM.

The more carefully you treat the car, the longer it will serve without any complaints.