In our country, it is largely due to the stereotypes of Russian motorists who, according to old memory, consider diesel engines to be noisy and difficult to maintain. In addition, there is an opinion that diesel-powered cars are not adapted to the cold climate of Mother Russia and may not start in frost, because diesel fuel is prone to freezing. Automakers, in turn, say that even a short test drive on a modern diesel car can easily destroy these old myths. “With the current level of engine technology, diesel engines have practically no shortcomings. Even in the cold season, there is no difficulty in operating a diesel engine, ”says Maxim Vinogradov, Commercial Director of Volvo Car Russia.

However, the problem for the owners diesel carsthe quality of diesel fuel remains poor at Russian gas stations. Indeed, impurities in diesel fuel can damage expensive fuel equipment. In addition, there is a risk of refueling with summer diesel fuel during the demi-season period or during a sharp cold snap. However, these fears mostly concern the regions, while today it is not difficult to find filling stations with high-quality diesel fuel in large cities.

According to Ilya Nikonorov, head of the MMC Rus marketing and public relations department, the situation with the quality of diesel fuel is changing for the better every year, as evidenced by a decrease in the number of warranty claims related to low-quality fuel.

The indisputable advantages of diesel engines over gasoline engines are traditionally referred to as higher torque at low revs, lower fuel consumption, as well as the ability to travel a greater distance on one tank. However, even despite the fact that the cost of diesel fuel today is on average 7% lower than that of gasoline, the benefits of purchasing a car running on heavy fuel are not obvious for most Russian motorists. After all yourself diesel cars usually more expensive than gasoline modifications, and savings from more modest fuel consumption can compensate for the difference in prices when buying at best by the end warranty period.

Overpayment or savings?

According to Vladimir Miroshnikov, Development Director of the Rolf Company, modern diesel engines are quite high-tech, and their production, as a rule, turns out to be more expensive than atmospheric gasoline engines of a similar working volume. “From a technical point of view, when designing cars with a diesel engine, additional parts and materials are used, which in turn affects the difference in price compared to the gasoline versions. For example, equipping a car with a special fuel pump and additional components to it that allow you to distribute diesel fuel in more precise proportions, providing significant fuel economy, ”explains Ilya Nikonorov.

By the way, in Europe, where diesel cars are especially popular, automakers initially include in the price part of the benefits from tax breaks. The fact is that in European countries the amount of car tax is tied to the level of harmful emissions, which is traditionally lower for diesel versions... In Russia, the maintenance of such cars is often more expensive, including due to a shorter service intervalas well as more expensive diesel engine repairs.

According to Dmitry Baranov, leading expert of Finam Management, our country has not developed a system of incentives that would push consumers to purchase and operate diesel cars, because the question of the price of a car is decisive for the buyer.

In addition, in Europe, the cost of owning a diesel car is lower than a petrol one due to the more expensive fuel. And in Russia, the purchase of a diesel engine is not economically justified on all models. “In Europe, the average mileage is significantly higher than ours, car tourism is very developed, and for Europeans the benefits of using diesel engines are more obvious. In Russia, with its relatively small average annual mileage, the economic effect of using diesel engines is lost, ”says Vladimir Miroshnikov.

For heavy off-road vehicles - heavy fuel

Share of sales of diesel cars in Russia in 2006–2015 Data of the agency "Autostat".

Share of sales of diesel cars in Russia in 2006–2015 Data of the agency "Autostat".

Still share diesel cars on russian market in recent years, it has gradually grown - from 2% in 2006 to 7.6% in 2014. And last year, according to the agency "Autostat", it began to decline, amounting to 7.2%. The fact is that the overwhelming majority of models running on heavy fuel are imported into our country, and in the conditions of a weak ruble, their cost has become even less attractive compared to gasoline versions. At the same time, low demand for such cars in Russia makes automakers abandon their sales.

However, this does not apply to premium brands and the off-road segment, where diesel modifications are traditionally most in demand. The leader in terms of the share of diesel versions in the sales volume is Volvo - 82.1% at the end of 2015. Such a high rate is provided, first of all, by the crossovers of the brand - XC60 and. According to Maxim Vinogradov, buyers of such cars want to get from the car not only increased cross-country ability and a high level of comfort, but also great traction (for example, when accelerating or off-road).

In second place in terms of share diesel modifications in the volume of sales Land rover with an indicator of 74.5%. For Range cars Rover evoque, Discovery and Discovery Sport more diesel engines are offered than gasoline engines, and they are also more affordable. As noted in the press service of Jaguar Land Rover, in addition to the greater power and efficiency of diesel engines, savings on transport tax are no less important for buyers. So, for example, for car range Rover sport the available starting diesel engine is a 3.0-liter 249-horsepower engine, while the most affordable petrol version is the version with a 3.0-liter 340-horsepower engine.

We compare the cost of the "capital" of gasoline and diesel cars. Buying a used car always comes with a certain risk. Even if we take into account all the factors: year of manufacture, mileage and external condition of the car; you will not receive guarantees that you will not have to repair the motor.

This issue is especially relevant for those people who buy a supported car for long-term and frequent use, for a period of 5 years or more. It's always nice if a car that has served you faithfully continues to work. In this case, you just need to sell it and get a new one. Some models will not even lose much in price over 5 years of ownership. But this is ideal, which we will not consider. What to do if, while the car was in your ownership, the engine needed repair, and not just repair, the engine needs to be “turned off”. There are 2 options here.

You can, again, sell the car. Big money for it, of course, you can't take it, but you will certainly save yourself from a headache. The second option is to invest and renovate. In this option, you can expect a variety of surprises, for which it is better to be prepared immediately after buying a car. It is important to know when choosing a motor how difficult its repair is. Diesel engines are much more expensive in capital repairs, and now we will talk about the difference in their repair. The design of a modern diesel engine has relatively weak spots - these are injectors fuel system high pressure Common rail... They need to be changed after about 100-150 thousand kilometers. Sometimes this happens even earlier if you come across low-quality fuel at a gas station. Next, you need to repair the worn out turbine. If this is done at the wrong time, then the oil will imperceptibly fall into the intercooler, and from it into the engine cooling system, which will gradually kill the piston group. Take the popular 2010 Toyota Corolla as an example. Officially, it was sold with a 1.3 or 1.6 liter gasoline engine. There were also cars with diesel engines in Russia, for example, the popular 1.4-liter D4-D engine. The cost of each Common Rail injector is approximately 8000 rubles for chinese counterpart and 16,000 rubles for the original nozzle. For a 4-cylinder engine of these nozzles, 4 pieces are needed, respectively, only parts for capital repairs of the fuel system are needed for 30,000-60,000 rubles. Repairing the turbine and replacing the intercooler will cost another 30,000 rubles. Plus, it is necessary to calculate the set of gaskets, repair rings and other little things, which can amount to 10,000 rubles, or even more. At the very minimum, a serious motor repair will cost 70,000 rubles. Plus the cost of work is another 20-30 thousand. Alternatively, you can take a contract motor. The price for it will vary from 30 to 50 thousand rubles. Plus 20-25 thousand replacement with the installation of your own attachments... The gasoline engine will be much simpler and cheaper. The most difficult part will be the VVT-i phase redistribution system, the repair of which will cost 10-15 thousand. Thus, in the service for a turnkey repair, you can keep within 50,000 rubles. Of course, diesel cars are more economical, but for a consumption of 5-8 liters, you may have to pay with expensive repairs after several years of operation.

Diesel modifications of modern foreign cars in our operating conditions cause trouble to their owners much less often than those running on gasoline. In the latter, the nozzles must be cleaned more often (after 20-30 thousand km), and the spark plugs and the lambda probe can become inoperative after one refueling with gasoline oversaturated with iron-containing additives. Spark plugs on our gasoline survive on average 10–20 thousand km, regardless of their cost and design.

The main trump cards of a modern diesel engine are efficiency and dynamics that have increased to the level of gasoline engines.

Diesel engines, both modern (Common Rail with electromagnetic or piezoelectric injectors, as well as with pump-nozzle systems), and old ones (with high-pressure distribution fuel pumps (TNVD) and mechanical injectors), do not have such "sores". But when operating on our fuel, due to the presence of water and mechanical impurities in it, the resource of an expensive high-pressure pump and injectors may decrease. The reason is that side components contribute to the deterioration of the lubricating properties of the fuel and abrasive wear of the working surfaces of parts, in particular, the plunger pairs of the injection pump and the nozzle nozzle holes. The same nozzle holes coke due to impurities - as a result, mixture formation worsens. Smoky exhaust (black smoke) and reduced engine power are signs of malfunction. In some cases, the shape and direction of the spray pattern may change. And if a jet of atomized fuel is directed at the glow plug, it will quickly fail. But all these problems in diesel engines appear much less often than in gasoline engines with an injection power system.

How to extend the life of a diesel engine in our conditions?

In our operating conditions, a reduction in the resource of expensive diesel fuel equipment can be avoided in several ways:

it is advisable to install an additional filter-separator in the power system, preferably with heating and a water sensor. It will allow you to safely operate the diesel under any climatic conditions regardless of the quality of the fuel, as it cleans it from the smallest particles of debris and water. These filters can be of both domestic and foreign production.

find gas stations to which only separated diesel fuel is supplied or where there are filter-separators, and use their services. The separation process allows you to completely or partially remove water and mechanical impurities from the fuel. It is not difficult to check the quality of cleaning: pour fuel into a clean glass container and let it settle. If in a day or two mechanical impurities do not settle at the bottom, and an abandoned crystal of potassium permanganate (ordinary potassium permanganate) does not change color (a sign of lack of water), then it is clean.

Diesel operation problems

But even after solving the problem of fuel purity, the probability of unexpected surprises from the diesel engine still remains. He is able to present them for two reasons: less often - because of a defective part (unit) of the power supply system, more often - because of violation of the rules for operating this type of engine.

Due to the low quality of domestic diesel fuel, some car manufacturers are still afraid to import diesel versions of cars to Ukraine.

Typically, these motors are equipped with glow plugs. Their inclusion in cold weather is signaled by a yellow light on the instrument panel, which lights up when the ignition key is turned. After 10-30 s (depending on the air temperature), the light goes out - this is a signal to start the engine. Then the fuel (even if cold) is injected by the nozzle into the already heated combustion chamber. In this case, diesel fuel evaporates better, and the resulting combustible mixture is highly flammable.

Warm up the diesel (at least up to 60 ° C) need not idle, and under light load - at a speed of 30-40 km / h at low engine speeds. On the track, remember that diesel does not like long-term operation at high revs.

It is necessary to turn off a turbodiesel, like any turbocharged engine, a couple of minutes after stopping, so that the turbine bearings cool down and lacquer deposits do not form on them due to oil overheating.

Diesel maintainability.

Repair of diesel fuel equipment in Ukraine today is also not a problem. There are workshops throughout the country where experience has been accumulated in repairing diesel power systems, moreover, over the past few years, specialized Bosch service stations have opened, where they repair components, and also replace units with new ones or those restored in an industrial environment.

It is undesirable to start a diesel engine from a tug or "pusher"!

Such a start is especially dangerous for motors with a belt drive of the gas distribution mechanism. A belt break as a result of a sharp start (due to the high torque of the diesel engine) is, at best, bent valves. If it is completely impossible to start the engine in a different way and you have to pull or push the car, you need to do this very carefully: switch to third or even fourth gear, and release the clutch so smoothly that it slips slightly. Then the shock load on the timing belt will be less. But even such a "sparing" start is extremely dangerous for a diesel engine, so the manufacturers of foreign cars categorically prohibit it.

If the engine does not start, check the compression and, of course, battery, starter, fuel, filters, etc.

Filter separators.

The filter-separator does not replace the standard filtering equipment installed by the manufacturer, but is an additional filtering element for preliminary fuel purification.

Based on materials: autocentre.ua

Borshchik is red, but without beets. Well, or something like that. You can describe the technology of a diesel engine that fully uses gasoline as fuel. This is Mazda baby, developed the innovative Skyactive-X engine.

Engineers at the Japanese car manufacturer Mazda have developed new engine internal combustion Skyactive-X, which will be installed on new cars from 2019. The Japanese used the diesel cycle, but the fuel is gasoline.

This is a fundamentally new power plant that combines a diesel cycle and gasoline as an engine.

As you know, a diesel engine is a piston internal combustion engine with compression ignition. It uses diesel fuel and is very economical. The difference between a diesel engine and a gasoline engine is that in the first case, the fuel ignites spontaneously when supplied to the cylinder with pre-compressed air. A diesel engine has a much higher compression ratio in cylinders than a gasoline engine. In general, diesel is simpler in design than gasoline counterparts, and its cycle is more economical.

The new SkyActiv-X ignites the air / fuel mixture without spark - by compression, as it does diesel engine... By combining a compression system with a supercharger, Mazda was able to increase torque. The concept used allowed the Japanese to simultaneously increase engine power and reduce pollution.

The ideal diesel cycle is characterized by four stages: adiabatic compression of the working fluid, isobaric supply of heat to the working fluid, adiabatic expansion of the working fluid, and isochoric cooling of the working fluid.

Note that now all automotive companies are actively working to improve the efficiency of their offspring, which is not least due to the rapid spread of electric cars. Mazda itself says the Skyactive-X will be 20-30% more economical than the company's other gasoline engines. Such giants of the global automotive industry as Daimler and General Motors are already interested in the new development of the Japanese. Mazda will probably share the details of the new product later. It is known that the company's management plans to start installing Skyactive-X on cars starting in 2019.

The new engine is part of the Japanese automaker's strategic plan to electrify and minimize emissions. The plan is calculated until 2030. Mazda wants to join forces with Toyota and create new electric vehicles. Meanwhile, Japanese specialists are clearly in no hurry to abandon the "gasoline" direction, as they have repeatedly made it clear.

How are things at the moment? What happens if gasoline is poured into a diesel engine and how does a gasoline engine behave when using diesel fuel?

"Dummies" or "blondes" do not always get into such situations, often even experienced drivers can get trapped. You know, I myself was a witness of this situation - I have an acquaintance who bought a second car for his family (he also has one worker) - that is, only three cars. Long dreamed of powerful SUV - in his opinion, in order to save money, he nevertheless took diesel (for a long time he chose diesel or gasoline). And the old car, he left the sedan for his wife. In general, as usual, I drove to the gas station after a really difficult working day (it's easier to say the brain was taken out) and got up to the gas station with gasoline, purely by inertia - then I just poured gasoline into the diesel engine! Realization came only after a couple of kilometers, when the car began to twitch and behave somehow strangely.

To begin with, it should be noted that gasoline and diesel are essentially different, two types of fuel. Engines operate on different principles, although both there and there are pistons and a crankshaft with connecting rods.

Ignition principles of liquids

Petrol... The most common type of engine, and therefore remember it first.
Remember that it is a four-stroke (injection, compression, ignition, exhaust gas outlet). But the principle of ignition here is based on spark plugs, and they ignite the fuel mixture (gasoline + air), which is supplied through the intake manifold. Without candles, the fuel would not ignite, although in fairness, sometimes "detonations" occur, but very rarely. It is also worth noting that the compression in the cylinders is approximately from 9.5 to 11 atmospheres, this is important! Of course, now there are SKYAKTIV engines from MAZDA, where the compression reaches 13.5, but still this is an exception to the rule, rather than a general trend.

Diesel (in Russia it is also called "diesel fuel").
There are also four strokes (injection, compression, ignition, exhaust). But the fuel is ignited differently, there are no spark plugs at all, and the injection is completely different here. Firstly, I would like to say that the ignition of diesel fuel occurs due to compression (compression on diesel engines reaches 20 atmospheres). Secondly, the fuel does not mix with air and is not supplied as a fuel mixture - there is separate air and diesel oil separately. How everything happens - the piston compresses the air in the cylinder, because of which it heats up very much, then almost at the peak point, fuel is injected, under very high pressure (through the nozzles), after which it ignites.

As you can see, the differences are significant, outwardly similar units, very different inside, and the fuel supply system is different here.

What will happen if you pour gasoline into the "diesel"?

It's not very good to say the least. However, it all depends on how much gasoline you added, it happens that you have a tank of 100 liters, and you "splashed" only 5 liters, then the diesel engine most likely simply will not notice it - it will "chew" like a nice little one. I talked with seasoned truckers, so before the appearance of "antigels for diesel" they added a little gasoline to the tank so that the diesel was not so thick in the cold, they say - it really helps. However, the addition should be within 3%, well, maximum 4 - 5, no more!
However, if a lot was poured, more than half or almost full tankthen it can have a detrimental effect on the diesel engine, or rather on its systems. What happens at the beginning? Yes, everything just your car will stop and will not start. The thing is that, as I wrote from above, a spark is needed for gasoline, but compression is like “on the drum”. Respectively normal work will fail and the engine will stall.
In the tank and the system of the car, there are fine and coarse filters, they are designed for diesel fuel, and if gasoline gets into them, and it is more "active" and liquid, then it will simply "kill" them. Definitely a replacement.

A terrible word for all owners of diesel engines - injection pump ( fuel pump high pressure) + associated injectors that inject this fuel into the cylinders.

So they are "sharpened" for a diesel engine! "How does it manifest?" - you ask. Yes, everything is simple, modern diesel fuel, so to speak, is oily fuel, the composition contains a small amount of lubricating compounds, it is they who lubricate the injection pump and nozzles, prolonging their life. But in gasoline there is no such thing, on the contrary, it is an excellent solvent, that is, it washes away all lubricants. Also, gasoline is much thinner, it has a completely different consistency. So these important elements may fail - and this is oh, how not cheap, if you change all 4 nozzles + the pump itself, then this is about 20-30% of the cost of your car. I remember cleaning one injector with disassembly for a Volkswagen TUAREG came out at 14,000 rubles, and this is not a replacement - just cleaning!

In general, that's all - the engine itself will not suffer, the fuel system and filters may "be covered".

Actions after being noticed

I want to reassure you a little - if you noticed it immediately, for example, at a gas station, or after a couple of minutes of work. Then in 80% of cases nothing terrible will happen, gasoline simply may not be pumped into the system. However, you need to perform a few simple steps:

• We jam cars and don't start it again! This must be learned!


• We call a tow truck or a friend with a rope to be towed to the service station.


• At the service station, they remove the tank and wash it - it is necessary, it is necessary - to completely remove the gasoline.


• The entire fuel supply system is flushed, usually done with compressed air, again, we remove the residues from the system.


• Replacement of fuel filters, fine and coarse cleaning.

If you are lucky, the fuel injection pump and injectors will remain intact. Then just bring normal diesel fuel, refuel and continue on the road. Of course, the work of cleaning the system will not be cheap, an acquaintance would give about 7,000 rubles, but it must be done, because if you do not follow these steps, then an expensive repair of the diesel fuel system is guaranteed!

DIESEL IN GASOLINE

Reverse situations also happen. But when diesel fuel gets into a gasoline car, the situation changes dramatically. The density of gasoline is less than the density of a diesel engine, therefore, already during refueling, all diesel fuel sinks to the bottom of the gas tank and strives to immediately get into fuel line... That is, almost immediately, drivers begin to feel the same knocking in the engine, loss of dynamics, and neighbors downstream also see clouds of black smoke erupting from the exhaust pipe.

The initial actions in case of an erroneous refueling are the same as described above: you need to immediately drain the tank and fill the required fuel. However, getting diesel fuel into a gasoline engine for the most part does not threaten dire consequences. If the tank was empty and diesel fuel is the predominant substance in it, then the engine will stall almost instantly and will not have time to deteriorate. The compression ratio of the internal combustion engine and the spark from the spark plug are simply not enough to ignite the diesel.

If the car was half filled or more before entering the gas station, then the movement may work out. During the kilometers allotted to the car, filters and engine injectors will begin to clog on such a fuel mixture, and with long-term operation, the engine may be damaged, which will not be able to correctly synchronize the operation of the cylinders. A diesel engine contains a lot of paraffin, which clogs all lines and filter membranes, which happens at a double speed at low temperatures. However, for this you need to have complete indifference to the symptoms that the car exhibits.

If it was possible to stop refueling a gasoline car at the very beginning, say, about five liters of diesel fuel were needed for a 50-liter tank, then most likely the car will not feel this. It is only important to remember that the tank must be filled to capacity with gasoline, preferably with octane number higher than recommended.

So a gas station error isn't catastrophic. If you realize it in time and act according to the correct algorithm, the situation can be corrected quite simply and without sacrifice. Or at least minimize the damage if you don't ignore the car signals.

Share your experiences and impressions if you find yourself in an awkward situation due to confused fuel.

Sources:

Modern cars are unpredictable in terms of quality and service life. We are accustomed to the fact that the cars of famous brands serve for years without problems, they cover hundreds of thousands of kilometers without significant difficulties. But today more and more information appears about significant defects in a particular technology. This means that more and more cars are not worth buying on the new market. vehicle... Scandal with diesel units volkswagen was held all over the world extremely tensely. Environmental standards motors were violated, the concern tried to deceive inspection organizations and buyers. The result of such an unpleasant moment is a drop in ratings and a decrease in brand confidence. For example, in the US, VW and Audi sales fell by more than half in last year... Even in Germany, Volkswagen cars received far less sales in total market share. Today we will talk about diesel engines of this concern from the point of view of Russian operating conditions.

I wonder why the diesel scandal did not affect Russia in any way? The very engines that fell under the gun of environmental services around the world were actively supplied to the Russian Federation. These are 2-liter diesel units of almost all types, which are installed on Skoda, VW, Audi and Seat. In Russia it is Skoda Octavia, VW Passat, Caddy, Tiguan and other models. But in our reality, the demand for diesel engines has only grown, as they have become more affordable. If earlier diesel units were not intended for Russia and were expensive, today they have dropped in price due to a serious decline in demand around the world. Accordingly, the question arises as to how safe it is to buy a diesel engine from Volkswagen Corporation. Today we will look at all aspects of a heavy fuel engine and make recommendations for purchasing. Of course, this does not apply to those buyers who are worried about the environmental friendliness of their car according to Euro-6 standards.

The service life of diesel engines - why is it higher?

If you look at gasoline options power plants, then you will be surprised at one simple truth - their resource has decreased significantly. 10 years ago good engine could easily walk up to 300,000 km, and then, after repairs, drive another 200,000 km. Today, the resource of TSI units with turbines is 150,000 km in total, and motors are often not subject to repair at all. In addition, immediately after the end of the warranty period, a lot of problems with the turbine begin. Diesel engines have the following advantages:

• the design is classic, the corporation has not introduced any serious experiments in the technologies of turbocharging and the production of main parts, so that the diesel is more reliable and simpler;
• motors are being repaired, so after the end of the resource it will be possible to safely carry out overhaul, install new factory parts and extend the life of the car;
• electronics are simpler and more reliable, it is also classic and without significant experiments, as is the case with tSI engine on gasoline, nothing breaks and does not require replacement;
• reviews of drivers prove that a resource of 300,000 km is overcome by german diesels very easily, this figure is achieved without repairs and additional investments;
• there is no downsizing problem in production, since a diesel unit emits approximately the same amount of harmful substances in virtually any volume of fuel combustion chambers.

Until a few years ago, automotive experts and engineers saw a real future in diesel power plants. On their basis, hybrids were developed, technologies were improved. But the VW scandal changed everything, and today these motors have become outcasts, concerns are trying to get rid of them and switch to electricity. However, for Russia this is still a good opportunity to purchase a cheap car with great potential. So it's not worth wasting time.

What's good about VW diesel engines?

The corporation offered motors that were quite simple from a technical point of view. They do not have incredible pressurization, the most difficult electronic components... This makes the motors more reliable, depriving them of the chances of expensive breakdowns. Also, the engines have proven themselves in cold weather in the Russian north. Here, gasoline engines often do not survive long, and diesels are even more afraid of such temperatures. There are several common advantages for all modern TDI models:

• efficiency - power units consume about 7 liters of fuel per 100 km of run in the combined cycle, while this is not a runabout, but big sedan Passat D-class;
• the plants have a simple turbine in their assets, which creates excellent power acceleration capabilities, from 2 liters the company receives from 105 to 180 hp, and this is with factory restrictions;
• many use these engines for tuning, even a banal chip tuning without changing the design gives up to 200 horsepower, Stage 2 will give even more without reducing the resource;
• endurance - even with constant promotion to high speeds and high-speed operating modes, this unit can live a long time and not upset the owner with expensive repairs;
• ease of use - thanks to a number of technologies, the VW corporation managed to make the diesel convenient, you do not need to get used to it and adjust to it, there are no special differences from gasoline engines.

It is these advantages that have become the basis for thinking about buying a diesel engine for many Russians. Prices add fuel to the fire. It is also quite possible that in the near future on secondary market there will be a flood excellent transport from Europe. This is due to the fact that European countries are introducing a ban on the entry of diesel cars into the central parts of cities. Of course, this will cause a sale of heavy fuel vehicles at bargain prices, and they can get to Russia.

Are there any disadvantages to Volkswagen diesel units?

Today, objectively, these engines have more advantages than disadvantages. Nevertheless, it is worth remembering some of the nuances that are constantly encountered in reviews. It is no secret that heavy fuel units save money only to their first owner who bought the car in the salon. Used cars with 10 years of experience in russian conditions will no longer provide most of the above benefits. But there can be a lot of disadvantages in such motors:

1. Service cost. Average price of regular maintenance turns out to be 2 times higher than when carrying out maintenance of the same power and class of gasoline engine of the same concern.
2. Fuel requirements. If you fill the tank with low-quality diesel fuel, you will have to expensively clean the system from contamination. It will also cause failure of all car systems on the road and the need to overpay for a tow truck.
3. Demanding for oil. It is enough to fill in unsuitable oils several times in a row in order to get maximum problems with piston wear, as well as subsequent expensive repairs.
4. Spare parts prices. Components for diesel engines are traditionally more expensive, but this disadvantage may become irrelevant soon, as the market is flooded with these installations and spare parts.
5. Vibration. With a mileage of over 100,000 km, even the most elite cars with such units start vibrations and other troubles. This is due to the very nature of such engines.

In each case, you have to risk something in order to get certain benefits. At the time of buying gasoline engine you are risking a resource to gain power and comfort. In the case of a diesel engine, you will get much less horsepower, but more fuel economy, a significant improvement in overall life and economy. But at the same time, maintenance costs and certain risks of specific breakdowns will increase. Therefore, the decision should be made according to your own priorities.

What will happen in the future with diesel units from VW?

According to the concern itself, an active presentation of electric vehicles will begin in 2020. By 2025, the company plans to completely replace liquid-fueled cars with electric cars. This applies not only to the Volkswagen brand, but also to all brands of the concern. This is due not only to the scandal in the United States, but also to the objective need to find alternatives to gasoline and diesel fuel. The Euro environmental standards will only increase, and soon they will become unbearable for the units.

There are several obvious facts in the fate of diesel engines today:

• if the company does not find a way to make the motors more environmentally friendly, this year there will be a substitution for gasoline versions, the production of diesel engines will drop dramatically;
• such installations will continue to be supplied to Russia, since here they are gaining momentum due to their low cost, efficiency and good resource, we approach the choice of a machine practically;
• after 5 years, the production of internal combustion engines may stop altogether, all liquid-fueled motors can be replaced by electric motors, but so far there are a number of obstacles to such events;
• it is obvious that the company will no longer invest billions in the development of diesel power unitssales markets remained not the most attractive, so there will be no investments;
• but the support of car owners will remain unchanged, Volkswagen will continue to produce spare parts and engines for replacement for several more years after the installation on new cars is completed.

As you can see, the era of diesel engines is coming to an end. It is quite possible that in the near future all world concerns will begin to abandon such installations. With the introduction of Euro-7 standards, which are now in development, not a single heavy fuel engine will be able to pass certification. Companies will have to cheat and take risks, or simply abandon the production of such technologies.

We offer you to watch a video with information about VW diesel units:

Summing up

Volkswagen cars are a respected class in Russia. Today, the demand for all units has leveled off, buyers no longer blindly give preference to gasoline engines, since they know about their intricacies and possible problems in operation. Diesel plants received due attention in the Russian Federation after they went to sunset in Europe. Several important factors contributed to the increase in demand, such as lower prices and good feedback owners. If you buy a new diesel engine, you can not worry about possible problems and disadvantages of its operation for about 300,000 km.

However, there are also disadvantages of heavy fuel units. The problems are that such technologies are too subtle, they are sensitive to factors of poor-quality service or not the best fuel. Therefore, there is no need to talk about the absence of troubles. VW specialists themselves admitted that today they are losing the point of developing in the direction of internal combustion engines. All investments are channeled into the new field of electric vehicles, and heavy fuel units, like gasoline, simply receive the necessary versions to fit into existing environmental standards. So the choice is yours. What do you think of Volkswagen diesel units?