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Is it worth buying a diesel? What is a Diesel Vehicle? Diesel advantages and disadvantages

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Many drivers who use gasoline for their cars are beginning to discourage their friends from buying a diesel car. They believe that the car makes noise from diesel fuel and cannot move in severe frosts... But in fact, any car owner of a diesel car will not, under any circumstances, exchange it for a gasoline version.

Should you buy a Mercedes diesel car

If we compare a diesel car with soviet car, then we can highlight the quiet operation of the engine, good dynamics. It is impossible to talk about the unpretentiousness of the diesel unit, because diesel agent movement requires special attention and the use of good nutrition. After all, now they sell low-quality diesel fuel in many places. It spoils the engine. But there are gas stations selling good diesel fuel, so drivers need to come only to popular gas stations.

For some car owners, bad diesel fuel is not a problem because they can make it good by adding different auto chemicals to it. Only this must be done very carefully. Additives cannot be used with a valid warranty.

In winter, warming up the engine and interior space is slow because working temperature the diesel engine is lower than the gasoline engine. Many car manufacturers can eliminate this trouble by installing special heating systems. This allows modern diesel vehicles to start better despite severe frosts. If in fuel tank will use summer or low-quality diesel fuel, this will lead to difficulties. The diesel engine is too sensitive.

The work of the diesel engine of a Mercedes car is good in that the driver can slightly press the gas and immediately move. A gasoline-powered car cannot move immediately.

Is it worth buying a diesel Ikstrel

Every car supplied to Russia from the West is modified to work with low-quality fuel. Domestic filling stations operate on it. Therefore, before buying a used diesel car, you need to find out if such preparation has been carried out.

In addition, you will need to think carefully about all the points when buying an Ixtrail car in Russia. A car like this won't be able to withstand bad diesel fuel. This will reduce its performance, and it will break.

Diesel and gasoline vehicles are served differently. Filters used for a diesel engine are more expensive than the same parts used for petrol car... On the advice of the manufacturer, you should often drain the old oil from the diesel engine.

When planning to buy a diesel engine, since it is very ergonomic, you need to weigh everything well. Diesel cars do not consume much fuel compared to gasoline ones. In addition, the cost of diesel fuel is cheaper than gasoline. Savings can be achieved with long driving.

Should you buy a Prado diesel car?

It takes a while to get used to the Prado diesel car. Every motorist will fall in love with this car, because it does not require a lot of power (at the gas station everyone will have time to miss your car). After all, you have to go for gas more often.

Diesel is environmentally friendly. In modern diesel fuel, vapors evaporate in a minimal amount, toxicity is low, and the fuel does not burn compared to gasoline.

Being in the passenger compartment of the Prado car, you do not have to worry about your safety and the people in the cabin. Diesel car can be compared to a long-lived and hardy horse, because parts for it do not lose their performance for a long time. A diesel engine has no spark plugs and no ignition system because the fuel-air mixture ignites spontaneously according to a different principle.

There is good air compression in a diesel car. The effective action of a diesel engine has a high coefficient of conversion of fuel energy into useful action

Why Russians don't want to switch to diesel

Owning a diesel car in Russia, you need to be careful when buying fuel, which is off-season, winter or summer. Some filling stations issue one type of fuel after another, and the buyer cannot tell them apart. Winter fuel contains less paraffins, so there is no clouding, and it does not thicken when the air temperature is low and, having the necessary fluidity, is able to reach fuel filterto keep the engine running properly.

To keep the diesel from freezing, drivers have to use antigel to lower the temperature in the fuel. But such funds are not always useful.

Video: is it worth taking a diesel car in Russia

With the constant rise in fuel prices, the installation is becoming more and more popular. This is not surprising. Having spent several thousand rubles on HBO, you can drive on fuel, the price of which is half that of gasoline. Usually the installation of gas equipment is carried out on gasoline cars. Their engines are more suitable for natural or reduced gas operation. But there are also diesel cars with LPG. Can it be converted to gas? Should you install such equipment? See the answers to these questions in our today's article.

Diesel features

As we said earlier, LPG is installed mainly on gasoline engines. If we consider gas diesel, only domestic trucks MAZ and KamAZ can serve as an example. Such equipment is not found on passenger cars. Why is it so rare to install gas on diesel engine? The answer is simple, and it lies in the principle of fuel ignition.

As you know, gasoline engines ignite the mixture with the help of auxiliary devices. They are candles. When the fuel-air mixture is fed into the chamber, they generate a spark, due to which the fuel is ignited. Due to the fact that gasoline ignites from third-party devices, such engines have a low compression ratio. Now it is about ten to twelve units. And if we consider the motors soviet trucks, then even six. The only point is the octane number of gas, which is higher than that of gasoline. If for the latter it reaches 98, then for gas it is at least 102. But in order for the engine to work normally on this mixture, the electronic control unit automatically corrects the ignition angles and other parameters in real time.

For diesel engines, there are no classic spark plugs. The mixture ignites from a high compression ratio. The air is heated under pressure so that the temperature in the chamber reaches 400 degrees Celsius. As a result, the mixture ignites and the piston travels. Someone will say, they say, there are candles in a diesel engine. Yes, some motors have them. But these are completely different - glow plugs. They make it possible to produce without difficulty by preheating the fuel. Such candles have a completely different structure and principle of operation. By the way, the minimum compression ratio for a diesel engine is 20 units. If the indicator is less, the engine simply will not start. In modern car engines, the compression ratio can reach 30 units.

Thus, if the use of LPG on a gasoline engine does not cause difficulties during operation (since the fuel is ignited by candles), then a diesel internal combustion engine is not able to "digest" such a mixture.

Why is it difficult to convert a diesel engine to gas?

There are several factors that complicate the process of installing and operating LPG on such an internal combustion engine:

  • Flash point. If the diesel engine fuel spontaneously ignites at 400 degrees, then the gas burns at 700 and above. It doesn't matter if it is methane or propane-butane.
  • Lack of candles. Whatever the compression ratio in a diesel engine, it is not enough to heat the gas mixture to autoignition temperature. Therefore, you cannot do without installing third-party spark plugs.
  • Octane number. Diesel fuel has an OCH of 50 units. Gas has at least 102. If such fuel gets into a diesel engine, it will run out (this is uncontrolled operation of the engine at high speeds). There are several ways to solve the problem. This is a correction of the compression ratio, or a decrease in the octane number of the gas mixture.

Installation methods

There are several installation methods:

  • With a complete overhaul of the engine.
  • With the introduction of the Dual Fuel system.

Which one is better to use? Below we will look at what the features of each technology are.

Complete rework

What is the essence of this method? The bottom line is simple - the diesel engine is completely converted to gas. At the same time, after such an intervention, he will no longer operate on his “native” fuel - only on gas.

To prevent the unit from going around, adjust its compression ratio. It is about 12: 1. This is the only way the engine can "digest" fuel with a high octane number. Next, a mixture ignition system is installed. There are no special mechanisms here. For arson, ordinary candles are used, as on gasoline engines.

What is the disadvantage of such a rework? Due to the need to carry out a whole range of works, the cost of reinstallation can reach 200 thousand or more. This is ten times more expensive than converting a gasoline car to gas. Therefore, the savings are highly questionable. Moreover, such a motor will have a decrease in power and torque.

Dual Fuel System

It is this scheme that is used on some modifications of MAZ and KamAZ trucks. it combined system fuel supply. At the moment, this is the cheapest, correct and easily implemented option. The cost of rework is about 70-85 thousand rubles. The peculiarity of the system is that there is no need to install spark plugs. To ignite methane (or propane-butane), self diesel fuel... As for the main components of the system, it is all the same gas reducer, hoses and lines, as well as cylinders for storing fuel.

How it works?

The engine is started only with diesel fuel. After that, the gas reducer is already used. It feeds the mixture into the combustion chamber through an intake valve. Gas goes along with oxygen. Along with this, a small portion of diesel enters the chamber. When the piston almost reaches top dead points, diesel fuel ignites. Its temperature is about 900 degrees, which is already enough for methane or propane to ignite spontaneously. Thus, two types of fuel are burning in the chamber at once. The efficiency of such a motor is unchanged, except that the diesel portion is reduced by an order of magnitude.

What gas can be supplied to a diesel engine? You can install both a propane system and a methane one. But there are pitfalls here. As the reviews note, the gas installed on the diesel engine shows itself in different ways. If we talk about propane, its percentage in the mixture is relatively small - up to 50 percent. In the case of methane, up to 60 percent of the gas is used. Thus, the portion of the diesel supplied to the chamber is reduced. This has a positive effect on savings. But it is impossible to completely limit the diesel supply. Otherwise, such a mixture simply will not ignite without extraneous sources.

Is it profitable?

Consider the feasibility of converting a diesel engine to gas. Since such an engine still needs a portion of the original fuel (in our case, diesel fuel) to operate, the savings are not so significant. If a gasoline engine runs entirely on gas, the cost of fuel costs is cut exactly in half. But in our case, the savings will be only 25 percent, or 1.5 times. And this despite the fact that the price of installing the Dual Fuel system is at least 70 thousand rubles.

It is not difficult to calculate how much mileage this system will pay off. Under favorable conditions, the payback of LPG on a diesel engine will come in 70-100 thousand kilometers. And only after this run will you start saving. That is why gas is supplied to a diesel engine only in rare cases, and even then - for domestic trucks. Such a system is practically not found on cars.

Summing up

So, we found out if it is possible to install gas on a diesel engine. Due to the different principle of operation, the installation of LPG on such a motor requires major alterations. And as a result, this unit will still require a small portion of the diesel engine. There are savings from the use of such equipment. But it is so insignificant that no one bothers about the question "is it worth installing gas on a diesel engine." High payback periods and complexity of installation are the main factors that prevent the use of LPG equipment on a diesel engine.

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 in the new vehicle market. Scandal with diesel units volkswagen was held throughout 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 in 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.

Service life of diesel engines - why is it higher?

If you look at gasoline options for power plants, you will be surprised at one simple truth - their resource has significantly decreased. 10 years ago, a good engine could easily travel 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 completion 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 basic 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 down 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 engines 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 there is no time to waste.

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, there are no complex electronic components. This makes the motors more reliable, depriving 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 opportunities for accelerating power, 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 up to high revs and high-speed modes of operation, this installation can live a long time and not upset the owner with expensive repairs;
  • usability - thanks to a number of technologies, the VW corporation managed to make the diesel convenient, you do not need to get used to 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 a ban on entry is being introduced in European countries diesel cars in 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 begin to vibrate 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. When buying a gasoline engine, you are risking a resource to get power and comfort. In the case of a diesel engine, you 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 diesels 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 in a practical way;
  • after 5 years, the production of internal combustion engines may stop altogether, all liquid-fueled motors can be replaced with electric motors, but there are still a number of obstacles to such events;
  • it is obvious that the company will no longer invest billions in the development of diesel power units, sales markets are not the most attractive, so there will be no investment;
  • 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 lose the meaning of development in the direction of engines internal combustion... 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?

As soon as a "neophyte" motorist hints at the desire to buy a car with a diesel engine, experienced people attack him like kites, intimidating them with stories of diesel fuel nightmares. After all, diesel engines still cause mistrust among many - apparently, numerous horror stories played their role here. And the buyer sometimes does not figure out which ones to believe and what to attribute to the category of fairy tales.

Struggle for efficiency

The main reason for the popularity of a diesel engine is simple - its higher efficiency. If the efficiency of gasoline engines rarely reaches 30%, then heavy fuel units give out about 40%, and sometimes even 50%! By the way, it was the lack of efficiency of the engines that existed at the end of the 19th century that pushed Rudolf Diesel to create his own unit.

Basically this design is similar to gasoline internal combustion engine - the same cylinders, pistons, valves. The difference is that a diesel engine does not need an ignition system; the fuel in it ignites spontaneously from the air heated up during compression. But if you dig deeper, there are other differences as well. For example, the pressure in the cylinders of a diesel engine is one and a half to two times higher, so the parts for it are made more durable and, as a result, heavier.

Diesel mythology

The first myth: the power of diesel engines is lower than that of gasoline engines. Indeed, with equal engine volume horse power they usually have less. Although the situation is changing: the newest diesel motors according to this indicator, they are almost not inferior to gasoline counterparts, and sometimes even surpass them. Therefore, diesel engines are now even installed on sports models of premium brands, such as the Audi R 10 or BMW M. The reason for this is not only power, but also excellent torque indicators. After all, it is he, and not abstract horses, that provides elasticity and ease of traction control. In addition, diesels deliver peak torque earlier, guaranteeing powerful acceleration from virtually idle.

The second myth: a diesel engine is more expensive than a gasoline engine, both in purchase and in operation. It is true that you will have to overpay at least 50 thousand rubles for a car with such an engine. And it requires more oil and filter changes. However, in response to this claim, one can again recall the effectiveness of structures. In ordinary life, the low efficiency of a gasoline unit turns into a higher fuel consumption (on average, 25-30% more than that of a diesel one). This means that "extra" investments in diesel can gradually return to the owner with saved rubles, and this cannot be prevented even by the fact that the price of diesel fuel is almost equal to the price of 95th gasoline. However, in order to "recoup" additional expenses, the mileage must be about 100 thousand km.

The third myth: diesel is very picky about fuel quality. However, just for a diesel engine, the quality of fuel is not as important as for a gasoline one! The latter is sensitive to octane number, to the quality of additives, the presence of lead impurities. For a diesel engine, it is important that the diesel fuel is water-free and clean. And large network gas stations today practically do not allow themselves to "cheat" with fuel. So the recommendations for choosing refueling stations are the same for owners of cars with both gasoline and diesel engines: refuel only at proven stations and do not try to save on questionable fuel.

Fourth myth: cold start difficulties. This opinion is based on real, but outdated facts - nowadays they have learned to cope with many causes of such problems. For example, we have raised the efficiency of glow plugs to a previously unattainable height: they heat up to 1000 ° C in less than two seconds. To combat the formation of paraffin sediment, a variety of heaters (tank, filter and fuel lines), as well as special depressants and antigel additives. By the way, the presence of these additives is one of the reasons for dividing diesel fuel into two types: summer and winter. They differ in density (840 kg / m3 in winter versus 860 in summer) and pour point - "cold" diesel fuel thickens not at -5 ° C, but at -35 (sometimes up to -50 ° C) overboard. But the only important thing for the car owner to know is that with regular maintenance and the use of high-quality fuel, even in a fierce cold, a diesel engine will cause no more trouble than a gasoline engine!

Fifth myth: noise and vibration. Yes, diesel units are not as quiet as gasoline engines, but the situation is changing rapidly, and diesel engines of the latest generations are almost on par with gasoline engines in terms of these indicators. So far, however, this applies mainly to premium-class cars, although in the mass segment there are already diesel-powered engines that do not annoy with either the characteristic rattling or vibration.

Myth six: diesel exhaust is very harmful to the environment. In fact, this question is much more complicated. Diesel exhaust was initially thought to be cleaner because it contains significantly less carbon monoxide (CO). Over time, the designers of gasoline engines have dealt with this problem thanks to the massive introduction of advanced catalytic converters. But diesels still have their traditional sin - they emit a considerable amount of soot into the atmosphere. However, engineers also defeated this attack by introducing new technologies, the main of which was the DPF filter. It is similar in design to a catalytic converter: it maintains a high temperature at which the soot particles are oxidized by the residual oxygen contained in the exhaust gases. Many other tweaks have been applied, thanks to which diesel engines today remain "cleaner" than gasoline ones. And they have a good future - for example, the widespread use of "green" biodiesel fuel looks promising. Therefore, it is no coincidence that in Western Europe, which is seriously concerned about the cleanliness of the air, the share of diesel cars clearly exceeds the number of gasoline cars.

What do we have?

Summing up our "trials", we can conclude: there is no need to be afraid of a diesel engine! With proper care and attention, it will not cause unnecessary trouble to the owner, but it will give a great feeling of smooth and powerful traction, accompanied by relatively moderate fuel consumption. However, a car with this engine will cost more.

Thus, the decision in each case remains with the client. If you are willing to pay extra for a more responsive car and, moreover, drive a lot and often, then the diesel becomes excellent option, and all the scary stories about him are most often a relic of the past. Under other conditions, it is quite possible that a gasoline unit is more suitable for you. The point, as they say, is in the nuances.

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The constant rise in prices for diesel fuel makes many car owners think about the possibility of installing LPG equipment on the diesel engine of their cars. From a purely technical point of view, it is quite possible to do this, but the solution to this problem runs into two serious doubts:

  1. Will it make sense in terms of economy
  2. Will this re-equipment require the introduction of irreversible changes in the design of the motor, how much will it reduce its resource and reduce the overall specifications car

Having received answers to these questions, car owners will be able to decide whether they should convert the engine of their car from diesel to gas or it is better and more profitable to leave everything as it is.

Fuel is ignited in a diesel engine in the combustion chamber by injecting it under pressure into compressed air.

Therefore, at present, two technical solutions are used, allowing to supply conventional gas equipment to any diesel engine. The difference between them is fundamental:


There are also factory models of methane gas diesels. For example VOLVO FH / FM and KamAZ 5490 NEO with a Mercedes-Benz power plant. But such machines have not yet received widespread use.

The principle of operation of a gas diesel engine

The transition to gas fuel is carried out using a switch from the car after the engine warms up, or automatically. Gas supply process is controlled electronic unit control of HBO installation.

Gas is supplied to the diesel engine in a metered manner into the intake manifold. From where, mixing with air, at the intake stroke, it enters the cylinders through intake valves... Then diesel fuel is sprayed into the gas-air mixture compressed by the piston (compression stroke), where an explosion occurs due to pressure and temperature. D / t here acts as a fuse, since the ignition temperature of the gas is higher than diesel fuel and it itself cannot ignite.

Types of fuel that can be consumed by diesel on gas

You can convert the engine to a dual fuel system only for a specific type of gas. Either it will.

It is more expensive to make a methane-fueled diesel, but it will work with better economic effect than the propane-fueled option. Besides, methane is cheaper. When supplying propane to diesel, the contribution to the total fuel consumption will not exceed 30-50%. But the share of consumption of the methane component can be increased up to 80%. It all depends on the regime iCE operationwhere are taken into account:

  • vehicle speed;
  • season (summer, winter);
  • terrain (mountains, plain);
  • gas pressure and temperature;
  • turbocharged diesel or not.

Advantages and disadvantages of converting diesel to gas

The main advantage of the LPG installation for methane, or propane-butane mixture on a diesel engine, is a reduction in fuel costs from 10-50%. Besides:

  • there is an increase in efficiency, motor resource. In this case, the power and torque remain the same, or increase, in some cases, by 5-25%;
  • the service life of the standard fuel system 1.5-2 times (a big plus for systems Common rail);
    harmful exhaust emissions (smoke) are reduced;
  • the gas engine runs smoother, its noise is reduced;
  • reduction of carbon deposits, deposits in cylinders, combustion chambers, particulate filters;
  • reduction in replacement costs;
  • vehicle mileage increases in dual-fuel driving mode;
    no alteration of the internal combustion engine is required.

Serious disadvantages:

  • high cost of re-equipment;
  • increased time and costs for maintenance, adjustment, system repair;
  • search, reduction of useful volume because of them;
  • increased vehicle weight.

Inadequate adherence to the conversion technology (for example, incorrect installation or lack of a temperature sensor on the exhaust manifold) can significantly increase wear power plant... Since a high temperature begins to form in the combustion chamber and exhaust system during the explosion of the gas-air mixture and diesel fuel.

Diesel vehicles that can be converted to gas diesel

Any diesel engine can be converted to use gas as an additional component. It does not matter what type of fuel system is used: basic, mechanical fuel pump high pressure (high pressure fuel pump), unit injectors or rail / rail "Common rail". Also with 12/24 V vehicle electrical system. With turbine or atmospheric.

At the same time, the cost of modernization passenger car will be significantly less cost of rebuilding the motor truck, due to the number of installed cylinders, fasteners to them or valves in the case of methane. Also for engines with a large volume, 2 is used.

But regardless of whether it is necessary to install HBO on diesel trucks, light vehicles or agricultural equipment (tractors, etc.), with the proper approach, the economic effect will be obvious.

Is it possible to convert a diesel to gas with your own hands

Set everything yourself additional devices for diesel power unit is impossible without the presence of a serious tool base in a personal subsidiary farm, or garage. The most time consuming operations are:

  • Gas equipment connection.
  • Adaptation / synchronization of the standard fuel system.
  • Installation of instrumentation and electronics.

In addition, you need special software for. But if there is a great desire, re-equipment is possible.

It is important not to forget about the mandatory additional fuel plantwhich is not a quick procedure. Where appropriate documents from the service station are also required.

Conversion costs for trucks and cars

Average prices for a complete set of equipment, taking into account the cost of fuel cylinders for passenger cars starts from 50 thousand rubles, and for cargo and passenger vehicles - HBO can cost from 100 to 500 thousand rubles! (everything is selected individually). Installation of equipment in a specialized company costs 15-30 thousand rubles. The final price should also include the costs of legalizing the changes made.

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