What is better: diesel or gasoline? What car choose

Often, a novice car enthusiast faces a difficult problem for a novice: which car is purchased, gasoline or diesel. In order not to make a mistake, you need to know the positive and negative properties of both.

Probably, many years of dispute will never stop: what is better - diesel or gasoline. On the Internet it is easy to find the long branches of motorist forums with a bunch of a theoretical argument or based on personal exploitation in favor of this or that engine. To convince Yaryt Supporters is unlikely to succeed, but what to do beginners, just going to buy the first car in your life?


And gasoline, and diesel engines have their advantages and disadvantages, both real, and often those who have developed from older, well-rooted in the consciousness of stereotypes. To make the right choice, it is necessary to take into account those and others.

Briefly about the principles of work

The main difference between gasoline and diesel engines, on which absolutely all their pros and cons are based, is the principle of ignition of the air-fuel mixture in the cylinders.

In the gasoline engine, the final, mixing air with fuel occurs at the end of the compression cycle, a homogeneous mixture is formed, evenly distributed by the volume of the cylinder. The compression ratio reaches a mark of up to 9-10 units, while the temperature rises to 400-500 degrees, which does not lead to a self-ignition of the mixture - a timely spark from the spark plug is required.

Increase compression does not give the detonation of fuel. To eliminate detonation phenomena, gasoline is used with an increased octane number, but nevertheless, the compression rate of 11 units is the maximum achieving the value, to step over. In addition, the normal operation of the engine requires very limited values ​​of air ratio to gasoline.

Both excessively enriched and depleted mixtures will lead to a violation of the correct mode of operation of the engine, to a sharp decrease in its operational qualities. This requires additional devices, clearly dosing gasoline and air intake.

Also read our article about changes in the registration procedure of the car.

In the diesel engine, the principle is completely different. In the cylinders, the compression ratio reaches 13-25 units, the temperature increases to 700-900 degrees from such a compression. The injection of diesel fuel leads to its instantaneous evaporation, the formation of a heterogeneous air-fuel mixture and its self-ignition.

However, high compression and temperature of the diesel engine put forward increased requirements for the details of gas distribution and crank-connecting mechanisms - they are more massive, have significantly greater inertia. This develops one of the disadvantages of a diesel engine compared to the gasoline engine: it is not as a pickup, it cannot also respond to the addition of rotation revolutions, not so expensive.

On the other hand, high pressure in combustion chambers gives a significantly greater torque in a very wide range of rotational speed, which makes a diesel engine very "craying".

Efficiency and economy

If we are talking about the efficiency of the engine in the maximum load mode, then there is no significant advantage of the diesel. However, the practice shows that in everyday operation, and especially in urban conditions, the overwhelming part of the time (up to 90%), the engines are operating in a very limited load mode, barely reaching a third of the possibilities laid in them. This is where the smaller demandingness of a diesel engine for the enrichment of the mixture is affected. In gasoline engines, this magnitude must be maintained unchanged, regardless of whether they work on a complete or "hammer" at idle, which leads to the unjustified fuel consumption practically wasted. In the diesel, the same air intake in cylinders - the value is almost unchangeable, the power is regulated only by the quantitative indicator of fuel supply.

If the gasoline engine of the ratio of air and fuel must constantly lie within 0.8-1.2, then at idle the diesel will be enough and 15-20. How drivers are joking - "works in one air."

It is obvious that in such conditions of operation, diesel has an efficiency, 10-15% exceeding similar to gasoline engine. And on the consumption of fuel, this "Handicap" can reach up to 40%! In the former times, when the wasolar still cost much cheaper than gasoline, it was generally a glaval determining factor for choosing a car drive.

But in power, this spore of the diesel will lose, unless of course, compare the comparable brands of the car, but with different engines, and this loss is quite significant - up to 30%. So the choice will depend on the preferences of the future owner: that he will put in the chapter of the corner - even economical work or a large number of "horses" and the ability to quickly gain speed.

Operational "Teps"

Boxing ring

Probably, it will be unnecessary to say that both the other engines will work normally with their high-quality adjustment. However, even with the perfect balance of the MRM, there are a number of operational features.

  • In gasoline vulnerable places, it is probably more - in addition to a clear debugging of the injection system, canceled adjustment of the ignition system with its high-voltage wires, distributors, candles. In case of failure failure, determine the real cause - the task is not easy enough. In the diesel engine, everything is simpler, there is no binding to a complex electronic circuit. The main "Achilles heel" is a high pressure fuel pump and a fuel filter. Glow candles are used only a few seconds - at the initial start, which significantly increases their resource. Decide for the cause of the malfunction will be much easier.
  • High temperatures accompanying the operation of the diesel engine, the massiveness of the engine parts impose increased requirements for the cooling system, it is usually more voluminous. But when it is normal, it fully copes with the task, regardless of the operating conditions. Diesel will not even overheat even in a multi-hour traffic jam, while the gasoline cars shrouded with a ferry with a raised hood - quite frequent spectacle.
  • Despite the fact that the attachment of a diesel engine to the electrical part is minimal, for its launch, a much greater initial starter force is required, which requires installation on a powerful battery car. To recharge, it is clear that the appropriate generator will be required, superior with dimensions and mass similar to the gasoline car. With a seven battery, you will start a diesel "with a push" much more difficult - you need to create high compression. In addition, in this case, the probability of the timing belt break is large, which will inevitably entail the output of the engine. This often happens when trying to start with a tug of 1 or 2 transmission.
  • Special "Song" - seasonal operation of cars. The main disadvantage of diesel engine is its property crystallized at negative temperatures. The usual diesel fuel, without additive, begins to move into the jelly-like state already with minus 15, and the fuel pump simply cannot sell this consistency through the filter on the nozzles.

To avoid such situations, it is necessary to use only winter fuels in the cold season, or add special additives to the tank that reduces the freezing threshold. Some cars are equipped with fuel heating devices, such a complex can be installed independently, but it is very silent.


With gasoline engines in winter is much easier - the main thing is to be fuel and spark. But in the season of rains or high humidity, problems may occur due to a breakdown of isolation through microcracks. The current forces on high-quality spark is not enough, candles fills with gasoline - and try to climb under the hood during the rain to find a reason!

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Convenience of everyday use

If you leave the problems of the economy and features of the work behind the brackets, the question inevitably arises that it is better: diesel or gasoline engine in terms of comfort.

  • The first thing is attributed to diesel engines is their increased noise. To tell the truth is true, but only if you consider enough outdated car development, with low sound insulation of the case. Modern models of this lack are practically deprived, you can feel a special difference, only listening to very carefully. There is, of course, a characteristic "tapping" of a diesel engine, but this is rather getting used to it, without feeling no discomfort.
  • The second moment for which the diesel is complained is a kind of exhaust. The smell, of course, is different, but, in truth, sniff the exhaust from the gasoline car is also not the greatest pleasure. In addition, if the car body is high-quality, and the gas output system does not flow anywhere, the smell in the cabin should not be in principle.
  • To argue that the exhaust diesel gases are more harmful, it is not necessary: ​​in Europe, where most cars imported to us are produced, in recent decades, they are simply obsessed with ecology. According to the existing standards there, the diesel engine is even more "cleanliness", rather than gasoline, naturally, when refueling it with high-quality fuel.

What about repair?

From the point of view of theory, the diesel engine has a much greater resource, and its maintenance should be reduced to the replacement of oil, fuel and oil filters. However, in practice sometimes it comes out more.

The vulnerable place of the diesel engine is the fuel pump, when the failure of which the owner immediately "falls" on good money. However, it happens not so often - pumps have a very good resource.

On the tax on the sale of the vehicle, read here.

For high-quality repair of diesel, it is often difficult to find a good specialist, and it is even for the replacement of the timing belt - the business is unpromising that can entail serious consequences. The cost of spare parts for diesel engines is also significantly more expensive than on the gasoline of the same class. In general, if the circumstances fold so that serious repairs are required, it will cost 50-80% more expensive.

What conclusions, what kind of engine is better? There is no definite answer and can not. Each motorist is free to make a choice based on personal preferences, from the planned conditions for using the car, for considerations of the efficiency of its operation and repair.


Before buying a new vehicle, car owners are wondering what is better - diesel or gasoline? Another ten years ago, DT was used mainly on heavy agricultural techniques. The times have changed, the scope of application and the popularity of the diesel engine has increased. Let's try to analyze and find out which engine is better - diesel or gasoline.

What is better than diesel or gasoline? Prehistory.

At the end of the XX century, a small part of citizens knew about the release on the territory of the USSR diesel engines, since most of the products were exported. Those that remained in their homeland were used for public transport or special equipment - on buses, combines, trucks, etc.

Today, this prejudice has sunk in the summer. Diesels are sold albeit 3-4 times worse than gasoline DVS, but much more often than in the last century. Causes of this set. But for starters, we consider what is similar and what is the difference between diesel from gasoline in action.

What engine is better: diesel or gasoline?


Both types of DVS are four-stroke, i.e. their work is divided into 4 cycles:

  • fuel fluid injection into cylinders;
  • compression of the mixture;
  • Flammation of the mixture;
  • Issue (exhaust exhaust gases).

The principle of motors differs only in the third stage: gasoline flammives from the effects of electrical spark, and diesel - due to the high temperature of pre-compressed air.

Here it lies the main difference between the diesel engine from gasoline - the spark plugs are replaced with candles of incandescent. Also, he also has a compression ratio - up to 25 units against 10-12 from gasoline. Since the combustion chamber (and all of the engine) is experiencing a large load, its details should be stronger. The crank-connecting mechanism is not constructively different from both "engines". But the "diesel engine" (another name of the diesel engine) due to the high pressure in the combustion chamber of the pistons is equipped with an additional sealing ring.

The investigation of the differences is the weighting of a diesel engine that affects the cost, operation, resource and much more.

What is better than diesel or gasoline? Criteria comparison

As the main parameters in order to understand which engine is better than diesel or gasoline, the following parameters are selected:

  • power;
  • consumption and fuel consumption;
  • durability (resource);
  • fuel quality;
  • Environmental purity;
  • Safety for man;
  • Volume of work;
  • service specificity;
  • Operation in winter;
  • the cost of maintenance and service work;
  • Repair of DVS.

Now - specifically for each criterion.

Difference of diesel from gasoline - power internal combustion engine and fuel consumption


The degree of dig squeezing is almost 2 times higher than the gasoline, therefore the efficiency of it is more. The fuel mixture is adjustable evenly, with an increase in revolutions the number of incoming "diesel" also grows. However, at maximum turns, if you compare two units with the same working volume, the amount of injected diesel will be 30-50% less. Therefore, two cars of one brand, excellent diesel and gasoline engine of the same volume, may have significant discrepancies in power.

It is unambiguous to say that it is better for cars gasoline or diesel, difficult. If the car owner is a supporter of the Motor Reva, he will suit the diesel. If the amateur saves - gasoline engine.

If you have chosen a car with a gasoline engine, we recommend familiarizing yourself with the current value of gasoline in Russia.

What is more economical: diesel or gasoline?


Low quality DT in Russia - myth. The possibilities of refueling with second-rate gasoline or diesel is equally equally, and this happens most often due to the choice of bad gas stations. In addition, access to the service to official dealers of diesel cars with a breakdown of the DVS due to the poor quality of the diesel fuel is very rare. Therefore, it is difficult to determine what is more profitable - diesel or gasoline, it is quite difficult for this criterion.

Otherwise, things are with the wear rate of the engine elements. The engines operating on the diesel fuel serve longer, for the crankshaft and the details of the cylinder-piston group in gasoline engine fastest fails, requiring replacement. In addition, diesel performs the role of lubricating material during combustion. Therefore, in the question, the more economical diesel or gasoline, definitely wins the first.

However, today prices are regularly changing, so we recommend you to familiarize yourself with current rates for diesel fuel in Russia.

What is eco-friendly diesel or gasoline?

Here also wins diesel fuel. When combustion, it highlights less carbon dioxide, and smoke and soot are distinguished by defective motors.

Diesel is the most eco-friendly of all types of engines, it is inferior only to a hybrid and an electric vehicle. Of course, there are harmful compounds in its exhaust, but their concentration is so small that they do not make harm to human health. Municipal in gasoline, much more harmful.

Diesel or gasoline pros and cons - safety of operation


Solving that better diesel or gasoline, in terms of operational safety, it is necessary to understand that the existing difference is a consequence of the structural features and the number of harmful impurities of the exhaust. Diesel fuel burns not so intense as gasoline; So, the risk of fire is lower. The absence of the ignition system also increases the safety of operation. Why is this happening? Diesel for ignition needs a high temperature, and not a spark that can lead to fire.

Low toxicity DT is another argument in favor of diesel. With regard to this and the previous item (which is eco-friendly diesel or gasoline), DT wins confidently.

What is better: diesel or gasoline? Noise car

The diesel engine is noise louder than gasoline fellow. It is due to the severity of the design and a strong pressure drop before ignition and after it. Motor's noise - a problem for budget cars; Manufacturers of brands of class "Suite" took care of the car owner and passengers, setting high-quality noise insulation.

For some users "more powerful" means louder. They deliberately acquire noisy diesels to pay attention to. But what is better for the SUV - gasoline or diesel? Of course, a motor operating on diesel. Especially this applies to the vehicle operated with large loads or off-road - only with Diesel, they will be able to justify the hopes of the car owner.

Difference of diesel from gasoline in service

Why does diesel more expensive than gasoline if its service is worth more? There are several reasons:

  • A hundred serving diesel engines, 4-5 times less, and mechanics consciously raise the cost;
  • Diesels rarely equip the passenger cars, repair to which by definition is cheaper;
  • The adopted trend that diesel is the line of trucks and buses (which is also more expensive to repair).

What to choose - gasoline or diesel? The service interval is the first - from 15 to 20 thousand km of run, the second - 8-10 thousand. Oils for them are more expensive, consumables too. From the point of view of regular, gasoline in an explicit win.

Diesel against gasoline - what is better in winter?


No matter how they scold the domestic auto industry on gasoline, even it looks more attractive than elite cars on a diesel. In the latter at -15 ..- 20 degrees of DT goes into the gel-like state, and the motor will become difficult to start. The car owner is forced to switch to the winter version of fuel, use the heating system (for example, the Webasto Preparation Heater, which occurs on the special equipment) or use non-dry oils with additives, which still need to choose correctly.

Diesel against gasoline - what is better in winter? Definitely gasoline. Its operation during the cold season is more reliable, cheaper, delivers less hassle.

What is better than diesel or gasoline? Maintenance difference

No engine is insured against the global breakdown. But what is the difference between diesel from gasoline? Equally, they require concerns along the operation, but to maintain the performance of the first will be spent more. In diesel engine 2 times, filters and oils change 2 times, during the run of 200 thousand km "die" the nozzles or fuel pump, which is sometimes over 50 thousand rubles. Not to mention what amount will be the capital alteration of the aggregate.

For money, cast for a diesel service, you can completely update the consumables and make a boaront of the budget gasoline car. However, this figure will fade against the background of fuel efficiency and regulatory. In addition, renovating the node once, about his suitability can be forgotten for many years.

It is clear to assert that it is better for a gasoline or diesel crossover, it is impossible - a savings amateur will prefer the first option, and the quality connoisseur to the detriment of finance will choose the second one. The complexity of the repair of both types of motor is equal. Earlier, diesel was difficult, but with the introduction of the Common Rail fuel supply system, they were rushed into the fly. Auto mechanics adapted to it.

However, it is necessary to understand that much depends on the design of the car itself. Therefore, we recommend you to familiarize yourself with the rating of the most reliable cars.

What is the difference between diesel from gasoline? What advantages still?


Some hidden advantages are below:

  • When immersing in water, the diesel will work, and the gasoline engine is closed the wiring (that is, in the case of drowning the car, the risk of reviving the vehicle on the diesel is above);
  • The most expensive consumility - the previously mentioned TNVD, however, the resource exceeds 100 thousand km;
  • The transport tax is lower for the car operating on the diesel fuel, because with an equal volume (with gasoline TC) it will not be more powerful;
  • In the absence of heaters, the lively warmth will appear in the cabin only after a few kilometers of the trip, and with simply in traffic jam, the vehicle will cool down.

What is more profitable - diesel or gasoline? In the long run - the first, but only for those who will pull expensive service. From the point of view of regular expenses, preferably the second

Pros and minuses of diesel or gasoline are equally significant. The car owner before buying it is worth analyzing the cars under consideration according to the criteria listed above, familiarize themselves with the reviews of the experienced drivers and make a decision taking into account the purpose of exploitation and financial opportunities.

Before buying a car, it is important to decide which engine for you is preferable - gasoline or diesel? Each has its advantages. If you are planning to buy a new car and have not yet been determined with the type of power unit, you will be useful to learn a few facts.

Background question

Motorists with experience remember well how the number of diesel cars in the middle and in the late 90s have sharply increased. The stereotype was collected that the engines operating on the diesel were installed only on the "industrial" technique.

Today, automakers offer us a variety of diesel motors. GC Favorit Motors, one of the largest dealers of Moscow, sells and servicing both gasoline and diesel cars. This makes it possible to choose each other to choose your taste.


If you analyze and compare the characteristics declared by the manufacturer from gasoline and diesel cars, then you can see the trend: diesel provides greater torque, but it is usually inferior in maximum power. This is true: due to the peculiarities of your work, the diesel engine cannot develop the same power as gasoline, but it provides a maximum torque from the very first seconds of work. With the same volume in the diesel, the fuel consumption is about 20% lower than that of its gasoline counterpart. This allows you to save significantly at refueling.


Maintainability and requirements for fuel

Practice shows that diesel cars have a large reliability resource. They are more demanding on the quality of fuel, but this is positively affected by the service life of many nodes and mechanisms of the chassis.

It is worth noting the disadvantage: a diesel engine has a more complex device, so its repair is possible only in the conditions of a specialized car service. Yes, and the cost of components is significantly higher.

Experienced "Dieselists" know another important nuance of operation - it is riding in the cold season. If the temperature on the street is lowered below -15 ° C, it is necessary to use a winter type of diesel fuel ("summer" type in frosts thick and turn into a jelly-shaped mass). In some cases, difficulties may appear with the start of the engine in a heavy frost.

Can the engine type affect the level of comfort?

Diesel cars are a bit harder than their gasoline analogues, and this affects weight distribution indicators. For this reason, diesel is less maneuverable, which may complicate the driving process for a beginner.

There is another nuance to pay attention to, this is noise level. Diesel motors are usually more noisy in comparison with gasoline. If you have an expensive representative class car provided by the manufacturer noise insulation smooth this disadvantage. But if you bought an inexpensive diesel car with hands, and even with an unverified technical condition, then extra noise will surely accompany you every trip.

As for the price, the car with a gasoline engine will cost you a little cheaper. It is much more profitable and its maintenance due to the reduced price for components and repair.


If another ten years ago, a diesel car could be found in a black domestic smoke from the exhaust pipe, then today it is quite a rare phenomenon. The leading world automakers significantly reduced the indices of substances harmful to the atmosphere in exhaust gases, which made diesel much more environmentally friendly.


Diesel or gasoline: pros and cons

If you summarize all the listed features, then the advantages of diesel cars belongs:

  • reduced fuel consumption;
  • Increased torque;
  • The best motorcycle efficiency due to larger compression of fuel;
  • a larger resource of the engine and mechanisms of the chassis due to the special chemical composition and lubricating properties of diesel fuel;
  • reliability;
  • larger reserve stroke.

Pluses of gasoline cars:

  • less demanding quality of gasoline;
  • High rates of maximum power and speed;
  • lack of problems with the launch of the engine in cold weather;
  • More affordable service.

As can be seen, the advantages of one type of engines are disadvantages of the other. Carefully analyze everything, consider your capabilities, experience, features, pluses-minuses and operating conditions. Each manufacturer seeks to reduce the shortcomings of the machine to a minimum, so it is impossible to say that some of the types of cars looks greater. Differences affect some specifications, so you can always choose the option that matches your capabilities, skills and expectations.

Which engine is better: gasoline or diesel? Motorist meets experience

Hello Dear Subscribers and My Channel Readers! Today there will be a topic, the discussion of which has already turned into a real war of opinions. Namely - what kind of engine is better? Gasoline or diesel?

I, like a car enthusiast, I will be noncompetent in this matter, as I never went to diesel cars (except for trucks, of course).

Therefore, by the decision of this dispute, I decided to attract an experienced motorist, who for all his work experience went through so many engines that he had long decided which engine is better, and what worse.

But it would not be fair if it began to praise one engine and humiliation of another. Of course this will not be.

I asked to answer a motorist for a few questions and compare engines in several criteria to collect all the pros and cons of these "warring sides" (two engines), and you were able to finally decide for ourselves - the car with which engine will be better for you.

So let's go ...

Principle of operation of engines

Which engine is better: gasoline or diesel? Motorist meets experience

What gasoline is that diesel - they are both internal combustion engines.

In the gasoline engine, the device is such that the TVS (fuel-air mixture) is formed in front of the cylinder, or rather in the intake manifold. In the end of the compression tact, air and gasoline pairs are mixed.

This mixture is distributed across the volume evenly and as a result of compression, the temperature increases to 500 ° C, which is much lower than gasoline ignition temperature. Here the ignition candle comes to the rescue, which gives a spark and helps to light the mixture.

The diesel motor is characterized in that the air is compressed in the cylinder itself, and is not simply compressed, and under pressure 30-50 bar. The result of such compression will be an increase in air temperature to 900 ° C. At the same time, diesel fuel is sprayed in front of the upper dead point from the nozzle. When interacting with air and the increasing temperature drop of fuel evaporates and the fuel-air mixture is obtained, which is subsequently self-propagated and combines.

Efficiency engines and developing power

Which engine is better: gasoline or diesel? Motorist meets experience

The efficiency (efficiency) of the diesel engine is much higher than that of gasoline. This is due to the most effective combustion of the fuel and air mixture due to increased compression.

If the gasoline engine has a compression ratio of an account of 10 units, then diesel engines this figure is twice as much! That is, 20 units. On average, the efficiency of the diesel engine is more than 40% compared with gasoline, and with all this, diesel fuel consumption is 20% less.

But in the power of diesel cars lose gasoline.

Engine noise

Which engine is better: gasoline or diesel? Motorist meets experience

Noise from the diesel engine is much more compared to gasoline. It is associated with high pressure during the combustion of diesel fuel.

But, as a rule, engineers at the stage of the car are planning reinforced cabin insulation. Therefore, in the cabin, the engine noise will not be seen.

Traffic fumes

Which engine is better: gasoline or diesel? Motorist meets experience

In terms of ecology, diesel cars are as ahead. The exhaust system is perfect every year and bring to the norms of Euro-4 and Euro-5. Modern models began to equip the particulate filter, which additionally cleans the exhaust gases.


Which engine is better: gasoline or diesel? Motorist meets experience

Due to the slow evaporation, diesel fuel is less susceptible to fire. It should also be noted that in diesel engines there is no ignition system, and respectively ignition coils with high-voltage wires.

Engine operation

Which engine is better: gasoline or diesel? Motorist meets experience

In the theory, a diesel engine is longer than gasoline. This is associated with a stronger cylinder block, a crankshaft, pistons, cd. Since the development is focused on a high degree of compression.

But it's all in theory ... In practice, a lot depends on the quality of fuel. Diesel engines are most whimsical to its quality.

Unlike gasoline, diesel is divided into summer and winter varieties. On the summer fuel at a temperature of -15 ° C, fuel begins to thick and the car is simply not started. Also diesel engines warmed longer, you can feel warm in the cabin only after about 10 minutes. Therefore, if you live in places where strong frosts dominate, then you better choose gasoline cars.

But diesel engines are not afraid of water, as they use electricity only to start.

Engine maintenance

Which engine is better: gasoline or diesel? Motorist meets experience

In terms of service, not everything is so unambiguous. Diesel owners, due to design features, should more often change oils and filters. In addition, it is necessary to follow the compression in the cylinders more often. In case of breakdown, the repair of a diesel engine will be more expensive than gasoline.

But it all pays off if you buy a car not for a year, but at least 5 years and constantly exploiting it. Due to the low fuel consumption, you will save more than spend on maintenance.


As an output, I made a table in which it launched all the pros and cons of engines. And what type of engine will suit you - decide for yourself.

Which engine is better: gasoline or diesel? Motorist meets experience

Immediately I want to say that I am not adherents of a gasoline or diesel engine, so I will try to be objective.

What is better than gasoline or diesel? Pros and cons of gasoline and diesel engines.

We will compare modern diesel and gasoline engines!

Gas engine

What is better than gasoline or diesel? Pros and cons of gasoline and diesel engines.

At the beginning of the century, gasoline engines were simple and their advantages were obvious. But in recent years, technology has stepped far away in front and from the prostate there is nothing left, and each modern engine is a real work of art. Engineers are fighting over so that they become more environmentally friendly and consumed less fuel. Well, this is all the lyrics, perhaps let's start.


1. The cost of service is cheaper than the diesel engine - mainly it concerns the fuel system and its resource.

2. No need for warming (modern gasoline engines do not require long-term warming)

3. There are no complex components and aggregates - there are no pumps in gasoline engines (not in all!), There are no glow candles, etc.

4. The car with a gasoline engine is easier - the gasoline engine is easier and it significantly affects the controllability and weighing the car.


one. Significantly lower efficiency - This means that the lion's share of energy goes simple to heat.

2. High-breeding - gasoline engines provide peak power on quite high revs and go worse on the bottom. It is good on the track but not at no-like, for example.

3. Pretty high fuel consumption at lower power.

Perhaps it's all with gasoline engines, it was a list of basic advantages and minuses.

Diesel engine

What is better than gasoline or diesel? Pros and cons of gasoline and diesel engines.

Modern diesel engine is something unimaginable. They were brought to an insanely high level to get rid of many flaws, such as noise vibration and unpleasant smell. It is by the fact that the modern diesel engine is no inferior in these characteristics of gasoline in the pluses to the gasoline engine there were no these qualities.


1. Low fuel consumption is perhaps the main plus of a diesel engine, but it does not speak anything about savings. After all, now diesel fuel is more expensive than gasoline. So low consumption speaks only that you will quit less often to come to the refueling.

2. The line is a rather impressive plus to the diesel engine, it calmly transfers the load at the expense of a higher torque.

3. Tax - Of course, in our country, the tax is not divided into gasoline and diesel. But if you compare gasoline 250 l / s and diesel 180 l / s then they are going about the same. After all, overclocking to 100 plays a role only on the track, and in real life this acceleration is not needed.

4. Low-robustness - in a diesel engine, you get an impressive power already with 1,300 or a little more revolutions per minute, while the gasoline must be promoted.


1. Expensive service - a small service interval and rather expensive settlements.

2. Smaller resource - the resource of the diesel engine below, and the fuel instrument requires more careful care.

3. The presence of a turbine - if this unit is not always present in gasoline engines, then in a diesel engine without a turbine. And they do not have such a big resource.

4. It is necessary for seasonal fuel - the need to search for the winter solarium or pouring additives is far from an advantage.

5. The difficulty of starting on the cold - in contrast to the gasoline, the diesel engine will launch in the frost.

6. Ecological system - the most complex system includes planting filters, EGR and a lot more, which does not make a diesel engine cheaper than maintenance. And in some cars it is also necessary to refill urea.


As a result, a diesel engine in a passenger car is an unnecessary thing. . Previously, diesel was beneficial because the prices for diesel fuel were 2 times lower, but alas now Salaar for 1 ruble more than 95. And in this regard, all the savings are minimized.

Yes, if you want from riding 3 years under warranty, then you save, Believe a little. And if you consider not only how much you spend on fuel and also compare the service, it will turn out that the diesel is not particularly beneficial.

Yes, and hemorrhoids are more, all sorts of additives winter diesel fuel, and do not forget that and its quality leaves us to desire the best. In Central Russia, nothing, but on the outskirts of sadness!

Even if you have an SUV, you do not save! For example, take Mercedes-Benz M-Klasse III C 3.0 Diesel and 3.5 gasoline. The fuel consumption of gasoline will be 12 in the city if rounded, and diesel 9 liters. So in order to save on a diesel engine you need to ride a lot, and in ordinary life on average car drives 30 thousand per year.

This is a purely opinion, I do not want to offend dieselists! Many characteristics of Diesel really like. But I am for objectivity!

Who liked the article finger up, it's not difficult for you and I am pleased!

The fuel used for the car is one of the main factors that should be considered when purchasing. Each fuel has its drawbacks and advantages requiring careful analysis to figure out which type of aggregates is better.

Principle of operation of gasoline and diesel engines

Engine car

In contrast to the motor operating on gasoline, the fuel-air mixture is not injected into the diesel mechanism. Air masses compressed in combustion chamber heated to + 700 ° C are absorbed. Then the injected diesel substance is self-proposal in hot air. Accordingly, diesel does not require spark plugs. In the combustion chamber, a calil candle is installed, providing the necessary temperature when cold start. For smooth combustion of the incandescent candle of some engines remains enabled for some time after launch. Both aggregates have a four-stroke principle of operation:

  1. Suction of light masses. The air is absorbed through the open intake valve, in which the piston moves down in the cylinder.
  2. Compressed air. Intake and outlet valves overlap, the piston moves up, compresses the captured air
  3. Ignition. The injected fuel explodes. Gas is very heated and expands. This force pushes the piston down when the exhaust valve opens. For the ignition of a small diesel engine is enough + 350 ° C.
  4. Traffic fumes. The piston moves up, the pushing exhaust gases from the combustion chamber through the open exhaust valve. The heat of compressed air ignites fuel in the diesel engine.

The diesel has a high energy content, so the reaction of this fuel with concentrated air is higher. This chemical energy occurs after combustion in other places: friction, exhaust gases and cooling.

What is the difference between gasoline and diesel engines?

The difference between automotive rooms are as follows:

Work on gasoline Work on diesel
Works on a constant volume Works with unchanged on-line
Air and gasoline mixed in the carburetor until they are in the cylinder Fuel is supplied to the cylinder with a nozzle and mixed with air inside the cylinder
Compress the mixture of air and gasoline, which is lit by electrical spark Also compresses air charge, and the ignition is carried out by heat compression
The value of the compression is low High compression values
Lower power More energy is performed
Used in light cars requiring less energy Used in heavy vehicles requiring capacity
Optimal start Difficulty during the start
Burns fuel with high volatility Burns fuel with low volatility

Diesels do not have spark plugs. They need high degrees of compression to create high temperatures necessary for self-burning combustible mixture (the higher the ignition parameters, the better ignition). The main difference between diesel and gasoline is how ignition is ignition.

Features of operation

The specifics of the operation of motors with a four-stroke principle of work implies a clear observance of the manufacturer's requirements. Recommended for the operation of a diesel engine:

  1. After starting the fuel, you need to warm up before operating. Hot and cold parts are expanding at different speeds, which can cause clearances leading to leaks or breakage of the gasket.
  2. Attention on color. White smoke is a sign of a coolant in the combustion chamber or a malfunction of the injector, and the blue smoke is a sign of oil in the combustion chamber. If there are changes in smoke, it is important to quickly eliminate the problem before it leads to further damage.
  3. Do not overheat. Maintaining the correct cooling system is vital for the durability of the car. When modifying the motor, the temperature of heating, oil, coolant and exhaust gas is monitored.
  4. The use of high-quality dielary.
  5. Timely replacement timing.

Superheated engine hose

Attention should be given to the diesel fuel injection system that supports the operation of the pump and nozzles at a safe operating temperature. The clogged filters limit the flow, which leads to damage to the pumps and nozzles. Requirements for the operation of gasoline engines:

  • Timely replacement of air filters. Clogged filters reduce fuel consumption and reduce power.
  • Using the recommended oil brand.
  • Timely oil change.
  • The use of expensive lubricants.

Regardless of whether diesel or gasoline is installed in the car, you need to use high-quality components and consumables.

Advantages and disadvantages

The more cylinders have the engine, the smaller it works, the power it can produce. The more cylinders of the mechanism, the harder and mechanically ineffective becomes the unit. Cylinder configuration affects performance, vibration of both types of motors. Modern diesel cars are more economical than their gasoline analogues, by about 25-30%. But the cost of operation of diesel exceeds the gasoline type of devices.

Many modern SUV models are equipped with a diesel engine with direct injection and turbocharging. It provides a much greater torque, power compared to gasoline power units. This improvement allows vehicles operating on biofuel, diesel, to have an easily accessible power on low revs, which explains its efficiency of using fuel and ease of driving. These cars have a greater useful range of speeds, allowing aggressive driving style. The emission of harmful exhaust gases is lower in the machines with a slight fuel type. Fuel efficiency is a plus for faster riding lovers on powerful transport.

Both fuel types are produced from oil. But long carbon chains of diesel fuel contain more energy, produce greenhouse gas, during combustion, therefore additional costs for purchasing an expensive diesel filter are required. The advantage of the gasoline motor is a small capacity ratio to weight, which describes the weight ratio to the maximum car power.

Engine durability and safety

Gasoline cars are inferior in safety, since this type of fuel is a flammable substance. Fuel leakage becomes the cause of fire and death of people. Transport operating on diesel or biofuel, more fireproof.

Distellular power plants have a higher operating period. When such a type of aggregates, additional lubrication of the elements, which reduces the coefficient of metal friction, extending the life of cylinders.

Noise and environmental friendliness

While the new generation diesel engines highlight lower carbon dioxide levels than gasoline, they tend to highlight high levels of NOX. In the built-up urban areas, these emissions are the main cause of air pollution on the roads, especially among the old models. The wizard operating on the diesel engine can be compared with the root of the working tractor. The injection of fuel creates a hum that exceeds the sound of similar four-stroke units.

Repair cost

Diesel repair requires considerable costs, because it is necessary to attract an auto mechanic of a narrow specialization. The cost of services of the profile equipment is 2 times more than when repairing a gasoline unit. The price of spare parts for diesel motors is also higher, often exceeds the cost of overhaul gasoline fellow.

Operation in winter

Car did not start in winter

Motors running on the diesel fuel are difficult to come in winter. With modern high-speed incandescent candles, this process takes only a few seconds. Operation in the cold period requires the use of specialized fuel. Gasoline units are unpretentious and can be operated at low temperatures.

Power and fuel consumption

Diesel fuel combines more effectively, which means that drivers can drive more paths with diesel fuel than gasoline. However, the higher cost of diesel fuel can balance this efficiency for many vehicle buyers.

Financial Side Question

Diesel fuel similar to syrup compared to watery gasoline, has more energy per unit weight. Despite the fact that this fuel is more expensive, it contains the required number of potential energy, so it takes less diesel fuel to perform the same amount of work. The mining of car owners is thought that it is better to diesel or gasoline.

From the point of view of comparative costs of fuel, depending on the difference in price, vehicle and driving style The final cost of using any fuel will be approximately the same.

The diesel engine pays for large trucks and overall vehicles, because strong torque helps when towing.

Why in Europe diesel engines are popular, and in Russia there is no?

In Russia, the sale of cars operating on a diesel engine does not exceed 8%, and in Europe 68% of the car are equipped with diesel fuel units. Low offer on the market, high price, the lack of high-quality fuel in the Russian Federation is the main causes of the weak popularity of these cars from Russians.

What fuel is the future?

Car manufacturers increase the number of diesel models by applying new developments. Modern models differ from the initial, the units produce less toxic substances. The cost of repair work decreases due to the increase in the number of relevant professionals. Vehicle brands take into account customer requirements, reducing the cost of the range of diesel.

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