Hello dear friends! Today it turned out to be quite cold outside in the morning, and therefore, before the trip, out of habit, as my grandfather taught me, I began to warm up the engine at idle. And then the idea arose to consider in more detail the question of whether it is necessary to warm up the engine on the car in winter in frosts and in summer before the trip.

Agree, the question is relevant and causes a lot of controversy. Some argue that modern cars do not need to warm up the power units at all. Others are convinced that regardless of the car, the engine must be warmed up before driving. And it doesn't matter if it is an injection engine, with a turbine, a diesel engine or a gasoline engine. Also, the presence of an automatic transmission or a manual transmission does not play a role, that is, cars with automatic transmission and mechanics are in the same conditions.

What the opponents of warming up say

There is an opinion of experts and ordinary car enthusiasts who oppose the need to warm up engines before driving in winter and summer.

They cite the following facts as arguments:

• warming up the car at idle speed, you harm the environment, since the mixture becomes too enriched and does not completely burn out;
• another argument follows from the first point - fuel consumption is increasing;
• with the help of modern technologies and materials, including engine and transmission oils, current cars can be operated on the move without warming up;
• the exhaust system wears out, the level of contamination of the spark plugs increases and the oil does not warm up well.

With this, everything is clear. The arguments look convincing enough. But you need to consider the issue fully.

Putting on wheels in winter, you will not do well for our roads. But the first priority is your safety.

I will not go into the details of the physical and chemical processes that take place in the engine. But you yourself know that at low temperatures, metal shrinks. Also oils have a certain viscosity. The lower the temperature, the thicker they become. Since the engine and gearbox are not warmed up, the viscous liquid does not completely envelop the rubbing parts, it is unevenly distributed over the nodes, which leads to rapid wear and possible breakdowns. By raising the revs even higher, when you start to get under way, the wear increases many times over.

Even the automakers themselves limit the engine speed in the warm-up mode, which already implies the need for this process before traveling.

What to do in summer

That is, you already understand that it is possible and even necessary to warm up the car in winter. And what to do when the temperature is above zero? Under these conditions, the oil remains flowing, envelops surfaces well and does not thicken.

Do we conclude that there is no need to warm up the car in the summer? No. Warming up is also needed in the summer season. This is necessary for the distribution of all working fluids throughout the systems. You do not have to stand and turn the engine at idle for 5-15 minutes, as in winter. But it costs literally 1-3 minutes to warm up the engine to 40-50 degrees. This is especially true for cars with automatic transmission, that is, with automatic transmission.

Possible problems

The fact that before changing the oil, the engine warms up to operating temperature, almost everyone who has ever dealt with a similar issue knows. This allows it to flow, collect sediment from the crankcase and fully drain.

If the car does not drive for a while, or even just stood at night in the garage or in the parking lot, you should warm it up before driving. Failure to follow this recommendation may result in serious problems. And it doesn't matter if you have a Kia Rio, a BMW or a VAZ 2110.

I agree with those who point out the lack of information about engine warming up in the official manuals for modern cars. This is true for foreign cars. The explanation for this situation is simple. Most imported cars are adapted to relatively moderate temperatures, which rarely drop below -10 degrees in winter. In Russia, in winter, the thermometer stably overcomes -10 and rapidly creeps down. Alas, the automakers do not make the corresponding changes in the operating manuals.

In fact, if the car is not warmed up, this leads to certain problems and further breakdowns.

Motor oil

The oil in the engine and gearbox resembles blood circulating in the human body. It is only when the motor is turned off that all the grease begins to drain into the sump. The longer the machine is parked, the less oil remains on the parts.

In spring, summer and autumn, when the air temperature is high enough, 1-2 minutes of warm-up are enough to start the engine and distribute oil through the system. Try not to get under way earlier than 30 seconds after starting the internal combustion engine.

In winter, the situation is more difficult, as the oil becomes thicker due to downtime. When starting the engine, you must give it time to warm up the oil, make it liquid, and allow it to circulate through the system. This takes more time.

If this is not done, the wear of the gearbox and engine parts will increase, dangerous breakdowns will occur, up to the need for overhaul.

Oil filter

The filter serves to retain various debris from engine and transmission oil. When the liquid is viscous, it is difficult for it to pass through the filter elements.

If the oil does not pass through the filter, the bypass valve starts to open. In this case, oil enters the motor without filtration. Accordingly, metal shavings, carbon particles and other debris end up in the engine. It quickly becomes dirty, starts to work poorly, and consumes a lot of oil and fuel. Nothing good, as you can imagine.

Compression and oil scraper rings

When the engine is cold, the likelihood of damage to these rings, which are located on the bore of the power plant pistons, increases. These rings are used to remove excess oil and create compression. Therefore, they have a serious function.

From the moment of start, the motor runs at increased speeds for several seconds, which then fall. This is due to the stroke of the cylinders. Warming up the installation, the metal of the cylinders will expand, which will release the rings from compression. In parallel, the elements of the power unit are better lubricated with oil.

Without warming up the engine and going on the road, you risk wearing out the rings and causing damage to the cylinders. It is difficult and expensive to repair them.

Oil gauge

Many modern car owners are faced with a situation where the oil sensor has broken. I will say right away that this is mainly due to movement on an unheated engine.

Due to exposure to very thick oil, plastic sensors are simply damaged. And then the on-board computer starts signaling to you that there is not enough oil in the crankcase, although in fact you simply broke the sensor.

I myself relatively recently changed my view to warming up the car, because I often ignored the recommendations and got under way literally immediately after starting.

How much to warm up

No one will argue with the fact that heating is simply necessary for the efficient, trouble-free and competent operation of the power plant and the entire car.

If the car does not drive for a while, even if there are modern 1.8 TSIs under the hood, you should not refuse to warm up. But the duration depends directly on the temperature overboard.

When the car was turned off a few minutes ago, and you sit behind the wheel again to go somewhere, you do not need to warm it up again. The motor is already within operating temperatures.

In case of prolonged downtime, as shown in many videos on YouTube, you need to warm up the engine based on the temperature:

In severe frosts, it makes sense to purchase and deliver. But it is relevant only for regions with the most severe winters.

So why do automakers often discourage warming up engines on their cars? This can be explained very simply. The temperature in the countries where the majority of foreign cars imported into Russia are produced rarely drops below 10 degrees of the engine. This is the reason for such nuances in the operating manuals. Although they also note that the car will take 1-2 minutes to distribute the oil through the system, which is necessary for the safe start of the engine.

Hello, dear colleagues, motorists. The issue of warming up the engine has always been quite acute, and especially with the onset of winter cold weather. There are both opponents and supporters of a long warm-up, and they give quite weighty arguments. And how not to get confused here especially for a novice driver. I don’t want to say big words, but my education and experience in operating cars allow me to express my opinion on this topic. Your attention to the answer to the question: is it necessary to warm up the engine in winter?

We will not be guided by rumors and first of all we will open the operation manual for any modern car. What is written there? And there it is written in black and white that the car's engine does not need to be warmed up.

Having voiced this information, the manufacturer does not in any way worry about the resource of your car. No, he, in principle, does not care how long the engine of your car will travel 300 or 320 thousand km, since by this time the guarantee will expire long ago. The manufacturer pursues selfish goals:

• Indicate the lowest possible fuel consumption per 100 km, because when you are standing, fuel is consumed, and the mileage is not added.
• To please ecologists. Modern Euro standards strictly limit the content of toxic substances when starting up and warming up the internal combustion engine. And here the first batch is played by the re-enriched working mixture, that is, the mixture where gasoline is contained in large quantities. As you know, it is not gasoline itself that burns, but its vapors. In severe frost, gasoline does not really want to evaporate and the air from the street enters the cylinders cold, which means with a high density. The following situation arises in order to compensate for the low volatility of the fuel and the high air density, it is necessary to supply more gasoline to the cylinders. And what has not completely evaporated - flies away "into the pipe."

The second opinion is diametrically opposite - the engine must be warmed up until the arrow leaves the blue zone or reaches an operating temperature of 90 degrees Celsius. It is when the needle rises to operating temperature that the engine is fully warmed up and you can hit the road.

I can immediately point out the inaccuracy in these arguments. Let's remember what kind of temperature the arrow shows? Coolant temperature. It must be remembered that the oil temperature is the more important parameter for the power unit. How much it has warmed up depends on its fluidity and pumpability through the lubrication system, and this, in turn, affects the formation of an oil (protective) film on rubbing parts.

Coolant and oil temperatures differ significantly. Studies show that when heated to 90 degrees, the oil gains temperature only about 40–55.

In no case, I do not want to say that there is no need to warm up the car, but I want to emphasize that raising the arrow to operating temperature does not at all indicate a complete warming up of the power unit.

Carbureted internal combustion engine

For carburetor engines, the first option will not work; here you cannot do without warming up. Even if you close the choke, as a result of which the rpm rises, and a mixture rich in fuel is supplied to the cylinders, the engine will still run unstable.

Therefore, the verdict is unambiguous, on cars where there is such an atavism as a carburetor in the power system, the internal combustion engine must be warmed up. Warm up until the engine runs steadily.

And here it is better not to risk it, but to carve out additional time (usually 10 minutes is enough) to warm up the engine. Since if the engine stalls on the road, then there will be little pleasant, and even more so the vacuum brake booster works due to the discharge inside the cylinders. We have the following picture, if the engine has stalled - there is no vacuum and try to push the brake pedal when there is a strong "minus" outside: the brake fluid has thickened, the seals of the main and slave cylinders are hardened ...

Injection ICE

In contrast to the carburetor engine, injection engines have become more technologically advanced, namely, they have received an electronic engine control system, which itself selects the optimal composition of the working mixture, which allows the engine not to "stall on cold" and warm up faster.

Also, in modern power units, high-tech oils are used with the corresponding motor type and tolerance, which allow to reduce friction in loaded units.

Therefore, for owners of injection engines, I propose the following algorithm of actions:

Despite the fact that automakers do not recommend prolonged warm-up at idle, remember - they are pursuing selfish goals (ecology). In our country, not everyone is worried about this. Remember the thirty-year-old KamAZ trucks flying on our roads and releasing kilograms of soot on passers-by. It is better to warm the engine and it will obviously not get worse from this, but if you are limited in time, then you can start driving after 1 minute, we set aside this time so that the oil in the engine splashes, that is, it hits all the rubbing parts. Naturally, the first kilometers in this case should pass without sudden acceleration and it is advisable not to increase the speed above 2000-2200 per minute.

Also, prolonged heating makes it possible to obtain warm air from the blower deflectors, and, accordingly, the ability to melt the ice on the glass, which has a positive effect on visibility.

I would also like to say a few words about turbocharged engines. These engines provide high traction and speed properties of the vehicle with a small working volume. Since the working volume is small, the losses spent on heating the unit and, accordingly, heating the coolant are also not large and it can take a very long time to wait for the turbocharged internal combustion engine to warm up at idle speed.

Warming up cars with automatic

In addition to the engine itself, the transmission and chassis need to warm up before the trip. The oil in the box, when the internal combustion engine warms up at idle speed, almost does not heat up, but gains operating temperature only after 20-30 km. mileage. This is especially critical for the design, which provides a torque converter ().

To warm up the oil in the machine, you need to move the selector to position D (with your foot on the brake pedal) and wait 2–4 minutes.

Possibility to be fined

In some developed European countries, regulations have been legislated prohibiting prolonged idling of the engine. It turns out that in winter, on a standing car, you need to freeze, and in summer to steam without an air conditioner.

But this is in Europe, and in most regions of Russia, an alarm with an auto start or an autonomous heating installation is not a luxury at all, but a winter necessity. Although the use of autorun in a residential area is not always legal.

If you open the text of the traffic rules, then there, in paragraph 17.2, it is written in black and white: "Parking with a running engine is prohibited in the residential area." Accordingly, if there is a clause of the rules, then, accordingly, there is a penalty for its violation.

Part 1 of Article 12.19 of the Administrative Code of the Russian Federation, the driver faces a warning or an administrative fine of 100 rubles.

Therefore, if the fact of parking is recorded, i.e. traffic is stopped for more than 5 minutes, then the traffic police can write out a protocol. By the way, such operations are periodically carried out in micro-districts of large cities.

In the text of a rather long story, almost every car owner will find for himself the answer to the question to warm up or not to warm up the car engine. All trouble-free winter operation of the car, see you soon.

To extend the operating life of their car and to postpone possible engine repairs as far as possible - this is what many car owners strive for. Regular maintenance, the use of recommended lubricants - all this has a positive effect on the technical condition of the machine. But there is one more point that causes eternal controversy: engine warming up. Opinions differ dramatically. Some believe that it is simply necessary to do this, others nod at the instructions for the car and the opinion of manufacturers who do not recommend doing this. As always, the truth is somewhere in between. And yet: is it necessary to warm up the engine and if so, why and why?

Warming up theory

The main material for the manufacture of power units is metal, which expands when the temperature rises and contracts when cooled. The details of the power plant are arranged taking into account the minimization of the gaps between them. This reduces energy losses when the mixture is ignited. Until the engine has warmed up, the clearances are not the same as provided by the automaker, therefore, the internal combustion engine does not work in normal mode.

During heating to operating temperature, the CPG experiences maximum loads. So does it make sense to start moving in such conditions?

Warming up the engine: the pros

They, of course, are, and the main one is the restoration of the necessary gaps between the engine parts, which are provided by the automaker. But there are other advantages:

• the oil receives the required viscosity and freely penetrates into all cavities, reducing the friction force, which helps to reduce the wear rate of parts;
• the engine starts to work steadily: hardly anyone will like trips with "jerking";
• fuel consumption on a warm engine is less;
• the car warms up inside, and it will be much more comfortable to get into it in winter.

Cons of warming up

The biggest drawback relates to the environmental issue. For example, pollution of the environment with exhaust gases, which "give out" a stationary car with a running engine in Europe, is punishable by a fine (if you stand for more than 5 minutes). The same measures have been taken in Russia by the governments of Moscow and St. Petersburg. There are other downsides too:

• extra ;
• contamination of the catalyst, candles, oil.

Another point: According to automakers, modern cars are prepared for immediate movement.

Features of warming up the engine in winter

A negative temperature leads to thickening of the oil, both in the power plant and in the gearbox. This means that at the time of start, the part is not fully lubricated, and the load on the oil pump increases sharply. Of course, there are special lubricants, but they also have their limits.

Another factor is the oxygen content in the air: the lower the temperature, the more oxygen. This means that the combustible mixture is depleted. On a carburetor engine, this problem can be solved by pulling out the suction: the damper will close, the mixture will be enriched. In an injection engine, everything is decided by the electronics, which sets early ignition and supplies more fuel to the cylinders.

How to warm up the engine

You need to start with a rechargeable battery to warm up the electrolyte in it. To do this, for 15 sec. turn on the high beam, then turn it off, and wait for half a minute. If there is a mechanical box, press the clutch and then start the engine. If the start-up fails the first time, wait a couple of minutes for the battery to recover and try again. If it fails, you can proceed to troubleshooting. When the engine starts, turn on the stove and direct the air flow to the windshield: this will help to avoid possible microcracks between the body and the glass.

Warming up on the go

The minimum warm-up time in the parking lot is 5 minutes. During this time, you can, for example, sweep the snow off the car body. During this period, the injection engine will warm up and slow down, and the oil will liquefy and it will become better to lubricate the parts. Further warming up can be performed on the go, but at the same time, several rules must be observed:

1. used in the engine must be synthetic and with a high viscosity index. Such a composition will surely fill all channels even in the cold season, which is guaranteed to "save" from scoring on the cylinder walls.
2. You need to drive smoothly, evenly, slowly, without sudden acceleration and braking. During this time, you will just leave the garage or parking lot.
3. Overcoming the first kilometer, avoid bumps and other bumps on the road.

Do I need to warm up a diesel engine

It is much more difficult to start a diesel engine in winter than a carburetor or injection engine, which is due to the different ignition conditions of the mixture. At negative temperatures, the diesel oil becomes thick and it becomes difficult to spray through the nozzles.

The main difference between a diesel engine and a gasoline engine is that its operation is possible with spontaneous combustion of the mixture due to its compression: it raises the temperature to 800-900 degrees. Cooled air prevents heat build-up. Partly helping by heating the combustion chamber. Another prerequisite for a successful start is the choice of fuel that is appropriate for the season:

• summer: the recommended temperature is from zero or more;
• winter: applies up to minus 30 degrees;
• arctic: in demand in the northern regions.

Often, difficulties with starting a diesel engine arise precisely because of the fuel that does not correspond to the season.

Prestarting heaters

Their installation helps to warm up the engine faster. Moreover, the use of these devices is relevant for both diesel and gasoline engines. The use of heaters in northern regions is especially important. The market today offers many solutions: you just need to choose the most optimal variant of the product.

Warm-up misconceptions

1. After the engine has warmed up to operating temperature, the car can be used in any mode and at maximum power. This is not true, because in addition to the motor, other components also need to be heated: for example, a gearbox, a rear axle gearbox (if any).
2. For faster warm-up, you need to increase the number of revolutions. But this will only lead to more intensive wear of the parts of the cylinder-piston group.
3. The new car does not need to be warmed up at all. Of course, the engine of a machine recently released from the factory will reach operating temperature faster than a unit that has wound tens of thousands of kilometers. However, it is not recommended to ignore warm-up.

Useful Tips

Each new generation of drivers is wondering whether it is worth warming up the car before setting off, especially after the car has been idle for a long time.

Many environmentalists believe that if your car is in the parking lot, you should start as soon as you start the car. Thus, less toxic gases will be released into the atmosphere.

We can agree with ecologists, especially considering that when driving, the engine warms up faster and fuel combustion is more efficient. However, it is worth noting that this method can affect the health of the engine, and not for the better.

Auto companies reassure car owners, believing that after they started the car, they need to go right away, since everything was calculated at the factory and the engine in this mode can work quite normally.

In fact, this refers to the operation of the engine during the warranty period. After that, they are not responsible for the car.

Whether to warm up the car

In both summer and winter, if you start the car and drive right away, the engine life is significantly reduced.

It is worth clarifying that for the most part, the operating temperature of car engines is 90 degrees or higher. It is for this temperature that they are designed. This temperature allows the engine oil to better lubricate the gaps between the rubbing parts of the machine.

Even if it is +25 C outside, this is not enough for oil, which means that the engine still needs to be warmed up. And even more so in winter.

As a result, the answer to the main question is simple: you need to warm up the car.

Regarding the indignation of environmentalists, it is worth mentioning that in a big city, where there are a lot of cars, the main air pollutants are not exhaust, but dust from the rubber of the wheels, which is rubbed off on the asphalt, and abrasive pads.

And in rural areas, warming up a car carries little harm in itself.

Interesting fact: Erwin Rommel, a German Field Marshal, and presumably one of the conspirators of the assassination attempt on Hitler, always demanded that the troops warm up the engines for 10 minutes.

This rule extended even when he commanded troops in the deserts of Africa. As a result, his motorized troops showed, on average, a lower percentage of breakdowns compared to other troops.

Warming up the car in winter

How long does it take to warm up the engine?

If you have a relatively new car, then you do not need to warm it up for a long time. The average warm-up time is 3-5 minutes. It is worth noting that the engine warms up faster while driving.

How much to warm up the car

* If the outside temperature from +5 to 0 С, then the warm-up time is 1-2 minutes.

* At air temperature from 0 to -10 С, engine warm-up time 2-3 minutes... During this time, all technical fluids will have time to warm up.

But to warm up the car interior at this temperature, you will need 5 minutes or even a little more.

* If on the street from -10 to -20 С, then it is worth warming up the car 3-5 minutes... In such a frost, the windows of the car freeze, which means it will take a few more minutes to defrost them. The best option would be to warm up the engine first, and then start defrosting the glass.

* If the air temperature below -20 С, then it is worth warming up the engine at least 5 minutes, maybe a little longer... This time depends on the technical condition of the machine. A more modern car means less warm-up time.

In this case, the salon should be warmed up for 10 minutes or more.

Do I need to warm up the car (video)

How to warm up the car (video)

Warming up a diesel car

The best option is to warm up the engine in winter - from 5 to 10 minutes, depending on the air temperature. The colder it is outside, the longer it takes to warm up.

In summer, the warm-up time for a diesel engine is 1-2 minutes.

After warming up (at an engine temperature of 40-50 degrees), the oil liquefies, the parts in the engine heat up, and the fuel in the cylinders burns fully.

When you have warmed up the engine, start moving smoothly. While driving, the engine will warm up faster to the desired temperature.

It is also worth noting that it is worth warming up not only the engine, but also the transmission. This applies to the automatic transmission, which is filled with special gear oil.

Warming up the automatic transmission

Warming up the automatic transmission is necessary in order for it to last longer. To warm it up, you should:

1. Warm up the engine.

2. After the engine has warmed up, apply the brake and place the transmission in "Drive" mode (D).

3. Wait 2 minutes.

4. Start moving smoothly and start moving for several kilometers at a speed not exceeding 50 km / h.

How to warm up an automatic transmission

How to warm up a car with automatic transmission (video)

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.