Why is gasoline hawala more than it should. Reasons why your car consumes a lot of fuel

A headache for a motorist is the high consumption of gasoline. Prices at gas stations are regularly rising, so you have to spend more and more money on fuel from the family budget. Although sometimes it is enough to give your iron horse a couple of hours for diagnostics with easy repairs, and this time will return in the form of saved liters per hundred kilometers.

Of all the consequences that affect the efficiency parameters, it is customary to single out two main reasons for high fuel consumption:

• direct (poor operation of individual nodes or elements, as well as their complete failure from a healthy state);
• indirect (factors to a greater extent not directly related to structural changes during operation).

To identify such malfunctions, in some cases, you can independently conduct visual diagnostics, and then turn to professionals.

Lambda probe

The failure of the oxygen sensor in most cases is due to the use of leaded fuel. Residues of lead oxides cover the working part of the assembly. In this regard, the injectors begin to add more gasoline to the fuel mixture. This chain leads to an increased level of CO in the exhaust gases. Often, it is by this indicator that you can find out that the lambda probe needs to be changed or repaired.

Lambda probe location

Computer diagnostics of the engine is also able to reflect a non-working sensor. In this case, it can simply be replaced with a new one. However, this is quite an expensive step.

The approximate cost of a new original lambda probe for a Japanese foreign car will be about $400.

A cheaper option for such a repair is to replace the assembly with a Bosch sensor, which is a spare part for VAZ cars.

Candles

Poor-quality gasoline adversely affects the operation of candles in the engine. Replacing them with new ones will help in the fight to reduce fuel consumption. But when buying a kit, you need to check for a properly set gap.

How to identify low-quality candles

After all, even in company stores, suppliers can bring low-quality goods. Then the purchase will be useless. The price of some products can reach up to $ 40 apiece.

Filters

To overcome the increased fuel consumption will help compliance with the regular maintenance of the car. During this procedure, it is advisable to control the replacement of all filters required for this period of operation:

• oil;
• fuel;
• air.

You should not expect a big return on this action, but the positive effect will be noticeable.

Electrical part

Due to the contamination of the distribution breaker or high voltage wires, there may be leakage of electricity. This affects the quality of the fuel mixture burnout in the cylinders. Incomplete combustion occurs. Therefore, you can check the electrical circuit for breakdowns. In case of obvious contamination, it is possible to clean or partially replace the damaged armored wires.

Catalysts

This element of the fuel system helps fight air pollution. But at the same time, the car loses a little in power.

Appearance of the catalyst

If the catalyst is faulty or not at all in its place, then this may also be the reason why the car is eating a lot of gasoline.

High idle

Improper idle adjustment contributes greatly to fuel consumption during warm-up and when the vehicle is stopped with the engine running.

For stable operation of the power unit, it is necessary to clearly set the speed value specified by the passe-partout.

lead angle

More experienced drivers also point out to novice colleagues the correct adjustment of the ignition timing. Both unstable idling and a problem with starting the car can serve as a signal for this. If such symptoms occur regularly, then a small intervention in the adjustment of the distributor will be required.

Mass air flow sensor

An important element of a modern car is the fuel consumption sensor. Its function is to control the mass of air that is supplied to the engine.

What does a mass air flow sensor look like?

From the correct ratio of fuel and oxygen, maximum efficiency and power of the car is obtained.

If the mixture is re-enriched, then this affects the greater fuel consumption.

nozzles

Dirty injectors do not spray fuel into the combustion chamber. More often it just comes in a jet for enrichment. To avoid this, you will need to flush this part of the injector. This work is carried out at specialized stands in a car service or at home.

The frequency of this procedure depends on the quality of the fuel used.

In Russian reality, the interval between maintenance should not be more than 10 thousand kilometers. If the budget allows for a replacement, then it would be more appropriate to install new kits.

Compression

To check this parameter, you will need a special device - a compression gauge. It is advisable to have it in the garage to check the compression in the cylinders. The approximate cost of the device is 10-15 dollars.

Compressometer

It is easy to work with him. It is enough to unscrew one of the spark plugs, and screw the threaded fitting of the device in its place. There is an option with a rubberized tip, but you will need an assistant there to force the measuring device into position. The test is done on all cylinders.

The deviation between all readings should not be significantly higher than 10%.

The exact level of standard data can be found in the car passport. If it differs significantly from empirical measurements, then this defect must be eliminated. For example, for a VAZ 2112, this figure should be 12.6 kgf / cm2.

Operational causes of expense

Breakdowns and failures are not the only causes of increased consumption. They are often visible even to owners or are diagnosed by service center specialists. But there are not all signs that service station workers can identify at their stands. You have to independently analyze and understand the essence of the process.

Vehicle driving style

All drivers differ in driving style. For a calm driving style, without jerks and sudden acceleration / braking, moderate and sometimes economical fuel consumption is typical.

Winter driving on an all-wheel drive SUV

If the driver often uses a sharp press of the accelerator, then the car cannot do without excessive consumption.

You can “jerk” at a traffic light if the power of the motor allows. But at the same time, the consumption will “explode” to sky-high 30 liters for a passenger car. Whether it is worth using this style of behavior on the road, everyone must decide on their own.

Vehicle class and engine size

It is generally accepted that for an increased engine size, owners often pay with significant fuel consumption. This is a kind of tribute to comfort. And a car of the same class, weight and brand should have a lower consumption, but in practice this formula is not always confirmed.

A massive powerplant uses less gas to produce results in terms of speed or power than an equivalent car with a smaller engine.

This is due to the fact that the "small" engine is working with a larger load. And accordingly it will consume more fuel.

terrain

The parameter is relevant for hilly and mountainous areas. If the car was initially operated in a flat area, then it had one expense. When road conditions change (frequent traffic jams, many lifting sections), the consumption may change upwards.

Automatic transmission

The opinion that automatic transmission increases fuel consumption by 10-15% is often confirmed in practice. In some cases, the "increase in gluttony" can be 1-2 liters per 100 kilometers. Sometimes the difference is almost imperceptible. It also depends on the machine itself, and not just the presence of it. After all, older models with four steps are different from six-speed automatic transmissions.

Box "automatic" or "mechanics"

To save money when driving with such a unit, it is recommended to use the overdrive mode when driving outside the city.

OverDrive reduces fuel consumption and helps keep speed up. When driving in the city, the reviews of the owners are not so unambiguous. The characteristic of the option is found out to a greater extent by individual experiments.

injection systems

The sensitivity of direct injection fuel systems (D4, GDI, etc.) to low-quality gasoline is felt almost from the first days of operation of the machines. Some automakers do not even officially supply cars with certain engine equipment to Russia. This is justified by the high cost of maintenance and repair when using low-grade fuel.

fuel injection system

Therefore, when choosing and before buying a used foreign car, it is advisable to take an interest in its fuel characteristics. A relatively low price for a nice car can result in very expensive repairs.

Fuel quality

Not all gas stations sell the same gasoline. Unfortunately, this fact also affects consumption. 95 may have an excessive amount of additives. Therefore, the banal conclusion is to fill in fuel only at proven gas stations. Although the presence of a company logo is not always a sign of quality. You have to trust your own experience.

Season

Beginners should be reminded that when operating a car in winter, consumption will be higher. This is affected not only by the “stove”, ice and traffic jams. The machine starts with a cold engine, which first consumes a rich mixture. Also, due to cold oil, the properties of which change at low temperatures, the power plant requires a little more power to rotate the shafts.

Four-wheel drive

A car with a single drive axle will be more economical.

Fans of all-wheel drive should immediately prepare for increased fuel consumption.

Or, if possible, do not turn on all drive wheels in unreasonable situations.

Additional factors

Consumption may rise slightly due to the power take-off from the engine during the operation of electrical appliances. The list includes an audio system, air conditioning, headlights, electric power steering. It is also advisable to change winter tires on time. Driving on the highway on off-season wheels can also bleed fuel. There is also the usual theft with incorrectly calibrated meters at gas stations. But it happens more on the periphery or where customers are not valued.

conclusions

Almost any car eventually requires more gasoline per 100 kilometers. It is necessary to undertake repairs only when it is economically justified. The high cost of work in this case does not cover the cost of fuel. Therefore, whether it is worth fighting with extra liters, everyone decides on their own.

If your car "eats" too much gasoline, there can be many reasons for this. Accordingly, there are many ways to deal with increased fuel consumption. Where can I look for reasons:

1. Lambda probe..
The lambda probe (oxygen sensor) often "dies" from leaded gasoline, becoming covered with lead oxides. Because of this, EFI starts pouring more gasoline than necessary, the mixture is re-enriched, the CO content increases in the exhaust (which is one of the indirect signs of a malfunction of the lambda probe). A malfunction of the lambda probe can also be detected using computer engine diagnostics. The lambda probe either needs to be replaced, which is expensive. Another option is to clean the sensor with phosphoric acid. Finally, some advise to simply reflash the computer so that it "does not see" the lambda probe.

2. Candles.
Replacing candles is one of the real options for dealing with increased fuel consumption. From domestic gasoline, or simply over time, they can fail. Candles, firstly, need to be selected from the catalog. Secondly, purchased candles, even if they are branded and sold to you in a reputable store, you need to check whether the gap is correct on them. Otherwise, replacing them will have no effect. There are also fakes.

3. Filters.
- fuel
- air
- oil
They should be checked for clogging and, if necessary, replaced. Very often this is what helps.

4. Armored wire.
High-voltage wires (or a distributor) may be dirty or even pierced. Accordingly, there is a leakage of electricity, the mixture does not burn. That is, it is worth paying attention to the wiring.

5. Catalyst.
The catalyst can either be simply defective (from low-quality Russian gasoline, it becomes unusable very quickly), or it has already been knocked out. The absence of a catalyst slightly increases power, but adds fuel consumption.

6. idle speed.
If the idle speed is high, the consumption increases (especially in urban driving). Unstable turns XX - a thing in any case is ambiguous.

7. lead angle.
The lead angle has a great influence and is among the possible causes of high fuel consumption.

8. Air flow sensor.
It can also be checked for correctness.

9. Nozzles.
If the nozzles are dirty, then they do not spray gasoline as they should; it can squirt. The nozzles can be washed or again replaced with new ones.

10. Compression.
It is worth measuring the compression in order to check the condition of the engine. Of course, not only consumption depends on the condition of the engines, as well as on the condition of other units of your car. In any case, it is possible and necessary to carry out diagnostics - both on your own and trust the specialists.

It is possible and necessary to deal with breakdowns and malfunctions in the car (if you have money, time and desire); but there are other factors that are not a reason to visit the diagnostic center, but affect (sometimes very significantly, sometimes not so much) the flow rate:

1. Engine size and car class.
Of course, it is foolish to expect low fuel consumption from a gasoline jeep or, for example, from a large executive class sedan. In this case, increased consumption can be considered a kind of payment for comfort. But there is also a small paradox: on cars of the same class with the same driving style, the consumption of engines with a smaller engine size is higher. At the same rpm, an engine with a larger displacement will work with less load and, accordingly, consume less fuel.

2. driving style.
For those who like to break off the traffic lights, "drown" the gas pedal, often use kick-down, fuel, of course, is consumed faster. So if you're worried about mileage, think about how you drive. Especially in the city.

3. terrain.
A parameter that is especially relevant for Vladivostok, located on the hills. Constant rides uphill, traffic jams, the nature of traffic - all this also affects consumption.

4. automatic transmission
As is commonly believed, the fuel consumption of a car on the machine is more than that of a car on a box, by about 10-15%. However, this is not a single figure for all; someone claims that the automatic transmission "adds" 1-2 liters to the consumption, while someone, on the contrary, is sure that there is practically no difference in consumption between automatic transmission and manual transmission. In addition, a faulty machine can add consumption. The consumption is also affected by the OverDrive mode (high gear). With the O/D on (O/D ON), consumption is less when driving on the highway. In the city - experiment yourself by measuring the consumption with the overdrive turned off and on, because, according to the owners, opposite results can be obtained in different cars: the consumption is greater either with the overdrive turned on or off.

5. injection system.
As you know, Mitsubishi's GDI and Toyota's D4 do not go well with Russian gasoline, which is why, for example, Toyota does not officially supply cars with D4 to Russia. Apart from costly repairs and other problems, this can also cause increased gas mileage.

6. Gasoline quality.
Judging by the reviews, the consumption of gasoline with a flooded 95th is less than with a flooded 92nd. But in the 95th, the presence of additives is more likely. Very often there is a change in consumption when moving to another city, where the same 95th or 92nd gasoline can be sold, but with a completely different quality. Conclusion: choose your dressings carefully.

7. Season.
Namely, winter. In winter, consumption is increased due to engine warm-ups, ice, traffic jams, even because of rubber and a stove. Trips on a poorly warmed up engine also add to the expense, because. an enriched mixture is poured into a cold engine.

8. Electricity consumers.
Air conditioning, tape recorder, headlights, power steering - all this "takes away" engine power and, therefore, increases consumption, even if not very much.
9. Four-wheel drive.
Cars with 4WD consume more gasoline - a long-known fact.

10. Rubber.
Winter tires add to the expense. Different size of rubber - different load on the engine during acceleration, different consumption.

11. Mileage.
With age, the condition of the machine, of course, worsens. And with the deterioration of the condition of the units, the increase in consumption is natural.

Thus, you can see that the fuel consumption of your car depends on a large number of factors - except perhaps the location of the stars in the sky. The main question is how to deal with increased fuel consumption and is it necessary to fight at all? Very often, any repair designed to reduce consumption will cost you an amount that can pay for long-term driving in a car with thereby increased consumption. In addition, there is not always a guarantee that the repair will bring the desired effect. It is worth considering whether your expense is really as great as you think, and whether it is worth fighting with it.

There are times when a car "eats" a much larger amount of fuel than stated by the manufacturer. This does not mean that they tried to deceive you.

The bottom line is that when a vehicle is being tested, it's practically being tested under reference conditions, and that's when the fuel consumption is calculated. Exceeding this indicator is often caused either by the manner of "aggressive" driving, or by inappropriate operation of the car.

Let's highlight the top five reasons why this happens.

Electronics and Consumables

If spark plugs or, for example, an air filter are clogged in a car, then the following happens: the air-fuel mixture does not burn out in the engine as it should. Since the mixture is not enriched with air, the vehicle consumes more fuel. Thus, the combustion of the mixture occurs in the combustion chamber. In the case when the spark plugs are worn out or covered with soot, then a certain amount of the mixture does not burn out, but exits along with the exhaust. In general, this reason can lead to an increase in fuel consumption by more than 20%. And if, for example, there are malfunctions of air flow sensors, a lambda probe, and others, then the excess fuel consumption can reach more than 100%.

Tire pressure and wheel alignment

When a vehicle's wheels are at the "wrong" angle, it cannot use what is called "natural" rolling. This slows the car down, so the motor needs more energy to keep it going at a certain speed. Accordingly, fuel consumption can increase by 10 - 20%. For the same reason, tire pressure should always be monitored.

Aerodynamics

There is an erroneous misconception that it is more economical to drive with the windows open than to operate the air conditioning system. At low speeds, this is really justified. Up to 40 kilometers per hour, the car is only slightly affected by air resistance. However, at higher speeds, this figure increases significantly, respectively, the engine has to "apply more effort" to overcome the resistance. In turn, the air conditioner requires very little energy.

Engine temperature

A cold engine results in additional fuel consumption. This is because the electronics respond to a cold engine. The optimum temperature of the power unit is about 90 - 100 degrees Celsius. If this figure is higher, then the electronics will also “give out” more fuel.

Aggressive driving style

Harsh acceleration and deceleration lead to fuel consumption of more than 50%.

High fuel consumption is usually attributed to malfunctions of the car's electronic systems, is this always the case? Now let's find out...

Let's start with the simplest. How do you measure fuel consumption on your car?? If the increased cost of gasoline, then it's stupid (no offense). It is also stupid to measure the consumption of gasoline in the direction of the arrow on the fuel gauge. First of all, you need to correctly measure the flow rate on your car. Of course, the data will still be approximate, but already more accurate than the definition of “by eye” and “by sensations”.

First you need to correctly measure the increased fuel consumption

Fill up a full tank of fuel. You may not be able to fill gasoline to the top of the neck, because many fuel tanks have a check valve, it does not let fuel out through the filler hole. But the tank needs to be filled as accurately as possible!

Now you need to reset the odometer to zero, and you can go. You need to drive along the highway at an average speed of 90 km / h, without sudden accelerations and braking. The more kilometers you drive, the more accurate the measurement will be.

The most effective fuel saver, according to our readers, is the High Performance Fuel Saver. The fuel passes through the magnetic field created by the FUELFREE fuel saver. The fuel molecules are evenly distributed, and its combustion in the engine becomes more efficient. Thereby gasoline consumption(or diesel, who drives what) reduced by 30-40%.

After the trip, top up the tank again to the full (preferably at the same gas station and from the same pistol, because they can snap off in different ways.) Topping up the tank to the full, you will find out how many liters you spent on the train, and look at the odometer mileage. Now there is all the data to find out the consumption.

Divide the number of liters used by the kilometers traveled and multiply all this by 100. You will get gasoline consumption per 100 kilometers.

Example: Let's say you drove 86 kilometers and spent 6 liters of gasoline on this trip. We divide 6 by 86, and multiply the resulting figure by 100. We get approximately 6.98 liters. That is, the consumption is about 7 liters per hundred.

Keep in mind when measuring:

• What you may miss at some gas stations
• The quality of the fuel greatly affects the distance traveled.
• Driving style largely determines the efficiency of the motor

Main reasons

In most cases, high fuel consumption is the cause of the malfunction. We will now talk about these malfunctions and consider the causes of increased fuel consumption.

Fuel rail pressure. Low or high pressure causes high fuel consumption. Check the pressure with a special fuel gauge. The pressure may drop due to a clogged mesh filter on the fuel pump, or due to the "fatigue" of the fuel pump itself.

When the pressure in the fuel rail drops below normal, the engine power decreases, which forces the driver to press the gas pedal harder, and this causes high fuel consumption. The pressure norm for all machines is different, but limits can be distinguished from 2.6 to 4 kPa. These are average pressures with the engine running.

Voltage in the car network. Unstable voltage directly affects the performance of injectors.

The control unit calculates the injection time, taking into account, among other things, the voltage of the vehicle's on-board network. Check the stability of the output voltage from the generator. You can do this with a multimeter with the engine running.

oxygen sensor. If it malfunctions or incorrect readings, the “check” may not light up, but the consumption will be increased. The fact is that the oxygenator is responsible for the optimal adjustment of the fuel supply, and if it is faulty, then the flow rate inevitably increases.

Well, if the mileage of your car is more than 100 thousand and the sensor has never changed, be sure that it shows incorrectly. Sensor resource approximately 80,000 kilometers

Coolant temperature sensor. If fuel consumption has increased, then DTOZH may be the cause. When the temperature sensor is false, the ECU may unreasonably increase fuel supply, mistakenly thinking that the engine is cold.

The fact is that for a cold engine, the mixture is made more enriched, that is, more gasoline is supplied than in a hot engine.

High RPM idling can also be the cause of high consumption. The revs themselves may increase due to the throttle position sensor.

Clogged fuel injectors. With a decrease in the quality of spray on clogged nozzles, fuel consumption increases significantly. At the same time, the acceleration dynamics may drop significantly. The car starts to "stupid", that is, it accelerates poorly. Sometimes misfires can occur, causing unburned fuel to burn out in the catalyst.

Air filter. A clogged air filter prevents sufficient air from entering the cylinders. Because the mixture becomes rich. The oxygen sensor, of course, regulates the composition of the mixture, but as a result, the engine power drops and the driver presses the pedal again, thinking about why the car has a high gas mileage.

With a heavily clogged air filter, engine speed may not rise to the possible limit.

Cold engine. If the engine is not warmed up to operating temperature (on Solano and Smile 92 - 98 degrees, on Geely Emgrand and Lifan X60 - 95 degrees.) On a cold engine, the ECU prepares a re-enriched mixture for a successful start. But if the mixture is rich while driving, this will cause a strong overspending of gasoline. When the engine is overheated, a similar situation occurs.

Camshaft position sensor. In the systems of modern cars, multi-point injection is organized, which is provided by a camshaft sensor. When the sensor fails, the system switches to asynchronous injection, fuel is injected into all cylinders simultaneously, regardless of the phase of the pistons.

Multipoint or multiport fuel injection is a process in which gasoline is injected into each cylinder separately and only on the intake stroke. With asynchronous injection, fuel is injected into all cylinders at the same time, but in a smaller amount.

Use of leaded gasoline! At the beginning of the 20th century, Americans came up with a way to raise the octane number of gasoline. They just added tetraethyl lead to it. Such gasoline is called leaded. Tetraethyl lead additive is highly toxic. In addition, a film of lead settles on the oxygen sensor and "poisons" it. The oxygen sensor starts to lie and fuel consumption is constantly growing.

What does it mean? This means that when refueling with gasoline with a higher octane rating (95, 98), you run the risk of running into exactly the “planted” fuel. The higher the octane rating, the less knocking of the fuel (self-ignition during compression). But in this case, more is not always better. Although the 92nd is not immune to fraud, it still has more confidence.

Ignition system. Even if occasionally, the fuel consumption will be greater. Gasoline from a non-working cylinder is directly thrown into the pipe and, in addition, kills the catalyst. Check the ignition system, wires, modules and spark plugs for possible "breakdown".

Mass air flow sensor. Or in some cars intake manifold absolute pressure sensor. The readings of these sensors are used to adjust the injection time and the composition of the fuel-air mixture, therefore, if they do not work correctly, the consumption increases by leaps and bounds.

Fuel consumption is one of the most important indicators of almost any car. The Russian seven is no exception, for which this parameter is one of the most important. If the VAZ 2107 carburetor eats gasoline in large quantities, then this is a malfunction, which the tips from today's article will help to eliminate. Below are the main causes and how to fix them. But before that, we will find out what the expense should be.

VAZ 2107 fuel consumption per 100 km carburetor

To talk about how much gasoline a car eats, you need to know what the actual consumption should be.

Depending on the engine installed on cars, the flow rate may be as follows (you can find more details on the consumption of carburetor cars in ours):

The difference is obvious. However, the power of the first motor is 72 hp. , and the second - 80. Therefore, he eats so much gasoline. However, in the case when the increase in consumption is higher than the nominal one, it is worth talking about too much fuel consumption.

Engine power system

Conventionally, the power supply system can be divided into two elements:

1. Air supply;
2. Fuel supply.

Let's consider the first option. If the car eats too much gasoline, then the problem may lie in a dirty air filter. All drivers should be aware that without oxygen, fuel combustion is impossible. Fuel consumption should be carried out in the ratio of 1 kg of fuel to 15 kg of air. This parameter is not always present, but should have approximate values.

If the air filter is dirty, it will turn out that the combustion of the fuel will be poor, which means that the efficiency of the engine will decrease, which is the reason why the VAZ 2107 carburetor has a high fuel consumption, but there are other reasons that lie in the operation of the carburetor itself .

If it is set incorrectly, then the fret will have a too rich or too lean air-fuel mixture. In both cases, it eats a lot of fuel and noticeably loses power. To get rid of the malfunction, you need to properly configure the system. If the VAZ 2107, or rather, its carburetor still eats a lot of gasoline and starts poorly, then you should check the cleanliness of the fine and coarse filters.

Ignition system

Scheme of a contactless ignition system: 1 - contactless sensor; 2 - sensor-distributor ignition; 3 - spark plugs; 4 - switch; 5 - ignition coil; 6 - mounting block; 7 - ignition relay; 8 - ignition switch.

If the car's carburetor consumes gasoline in nominal quantities, then the problem may be hiding in the ignition system (about the correct adjustment of which). The test should begin with a visual assessment of the behavior of the car.

Silencer popping or knocking at low revs may indicate poor spark plug performance or incorrect timing. Remove the spark plugs and check their color.

Black soot indicates system misfiring when fuel is supplied but not ignited. This indicates that the candle is not working. If all the candles are of the same color, then the ignition is late and needs to be adjusted.

The white color of all candles indicates a lean air-fuel mixture when the fuel consumption of a VAZ 2107 with a 2106 or 03 engine (carburetor) exceeds 10 liters per 100 km. In this mode, there is early ignition, the engine eats a lot of air, but is forced to burn gasoline in order to gain the necessary speed.

Driving in neutral

Almost all VAZ 2107 cars equipped with a carburetor engine with an economizer have the ability to turn off the fuel supply when the gas is off in gear, which was not the case with earlier versions of the Lada. In this connection, there is no need to move in neutral gear in order to allegedly save money.

There are no savings here. When the gearbox is in neutral, the revs drop and the autonomous idle system comes into play, which, when the throttle is closed, supplies the engine with an additional portion of fuel so that it does not stall. In this mode, the fuel system eats a lot of gasoline.

Vehicle aerodynamics

Many Russian drivers have already noticed that consumption is much less on the fifth model, due to its aerodynamic properties. We are talking about the grille, which is flush with the hood, and does not stick out, as on the seven. The high "nose" of the grille creates additional air resistance, which leads to excessive fuel consumption. In this case, it is recommended to install the hood and grill from the VAZ 2105.

The second reason is the roof rack, which has a too protruding load. Tall suitcases, boxes, and other items carried on the roof also make driving difficult, causing the engine to consume much more gasoline than it should. The best way out of the problem is a trailer that hides behind the car, is lightweight and holds more cargo than the trunk.

Open windows while driving on the highway also interfere with the normal consumption of gasoline. If the car is hot, then you can use the central air ducts, which open at speed and set the flow of cold air, which is much more convenient and economical.

Aggressive driving style

Many car owners squeeze too much speed out of the Zhiguli to switch to a higher gear. The classic motor is not designed for this style of driving. It is designed for a quiet ride, as the car is not sporty and does not tolerate high speeds.

The optimal shifting mode should be in the range from 2500 to 3000 rpm. If you turn the engine up to 3500, then in addition to increased consumption, you can also get a decrease in the resource of the power plant.

Tire pressure

The last reason is one of the most common is low tire pressure. To make it clearer, it is enough to lower the wheels of the car and try to push it. Everyone knows that it will be extremely difficult.

The same situation occurs with the engine when it tries to move the car with flat tires. It has to expend more energy, which means that it needs more fuel.

Now it’s clear why the VAZ 2107 carburetor has a high fuel consumption. The causes of this phenomenon are easily eliminated and do not require large expenditures. It is enough to monitor the condition of your car.