Tire pressure in winter and summer. Tire pressure for passenger cars Summer tire pressure for VAZ 2110

Not every driver pays attention to the pressure in the tires of his car. But the safety on the road, handling and maneuvering the car sometimes depend on what pressure in the tires. In addition, the level of tire pressure affects:

• on fuel consumption
• uniform wear of the wheel itself,
• can cause hernias on the wheel court.

If the pressure in tires r13 and r14 is increased, then, for example, when hitting an obstacle, the tire may even explode. Incorrect r15 tire pressure will also affect maneuverability when cornering, turning, etc. Best of all, at different levels of inflation of automobile wheels, the following figure will show.

Tire pressure

As you can see, already by tread wear, you can determine what the problem is with rim inflation, but it’s better not to bring it to this, but to maintain a certain atmosphere at the required values.

Tire pressure should be checked at least once a month. Professional drivers check every 2 weeks and before every long trip. A visual inspection of the wheels should be daily before starting the car engine. Although if you are a happy owner of low-profile tires, then it is impossible to determine what pressure should be in the tires by eye.

In recent years, tire fitting and car repair specialists have been advising to purchase tubeless wheels. But even a decade ago it seemed fantastic. To date, the operation of tires with chambers is a single case, and after a couple of years, wheels with a chamber inside can be found, probably, only on a bicycle.

The tubeless tire has the best wear-resistant characteristics due to increased vulcanization. Due to their lighter weight, their technical characteristics are better due to less inertia. In addition, tubeless tires are better balanced. Their service life is also longer. In addition, in the event of a puncture, the "tubeless" will hold the air longer, which will allow you to safely get to the service center.

Also, we will not consider the question of what you need to drive in winter. winter tires with spikes and with a greater tread depth, because this affects your safety and the safety of not only the car, but the life and health of others. Therefore, in the summer we use summer wheels and no "all-weather" in other periods, if you do not live in snowless Europe. The choice of brand of tire manufacturer is your choice, the only thing worth paying attention to is that the radius of the wheels must exactly match the one recommended in the vehicle's service book.

The tires of the VAZ 2107 car are an important element of traffic safety. Their condition is determined not only by the integrity of the surface, tread depth, balancing, but also by air pressure.

Keep your tires inflated

The pressure pumped into tires depends on what size they are. In addition, the pressure for the front and rear wheels of the machine is also different. So, in relation to the VAZ 2107, for the front wheels it is 1.6-1.7 atm., for the rear - 1.9-2.0 atm.. Tire inspection is carried out, as a rule, at least once every two weeks.

The verification should take into account which external factors may affect the reliability of the measurements. These factors include ambient air temperature and tire temperature. The higher the temperature, the higher the pressure, and vice versa. Therefore, it is recommended to carry out a check without fail in case of significant temperature changes, for example, before winter.

To check and adjust the pressure, you must have the following instruments / equipment:

• Automobile manometer;
• compressor or pump.

Although most automotive compressors have a built-in pressure gauge, the most accurate measurement is obtained with a separate pressure gauge, as there are no extraneous forces such as compressor pressure in the measurement. If, according to the measurement results, the pressure is below normal, it is pumped up using a compressor or pump, if it is higher, it is released by pressing the spool, or a special button on the pressure gauge (if any).

Incorrectly adjusted tire pressure VAZ 2107, in addition to a threat to traffic safety, can lead to premature wear of the chassis or damage to tires. As a result, repairs will cost hundreds of times more than timely control. It is also important that the size of the wheels matches the design features of the machine. Sometimes, in pursuit of beauty, some motorists put wheels that exceed the size allowed for a given model, as a result, chassis elements fail.

Tip when choosing a compressor - do not look at the size, big does not always mean powerful. Choose a compressor of the appropriate capacity, taking into account the volume of the wheels of your car. Also pay attention to what kind of working elements it has - plastic ones are less durable than metal ones.

Don't skimp on safety

The quality of rubber plays a very important role in safety matters. That is why you should not save where your health, and possibly life, depends on it. Get high-quality tires for your VAZ 2107 that provide excellent grip on the road surface. If you still decide to save money, buy good used tires from world manufacturers instead of low-quality consumer goods. As practice shows, such a solution is more beneficial in all respects.

Pay attention to the damage that tires receive during operation. It is not always possible to repair them. In some cases, it is better to completely replace the tire than to put on a patch that can go off at any time and cause serious problems.

Tire repair leads to wheel imbalance. Therefore, after vulcanization, it is necessary to balance it, otherwise vibration may occur during movement, which negatively affects the elements of the chassis and leads to their premature failure. This operation is also necessary after the discs are repaired (welding, rolling).

Special attention should be paid seasonal change tires on a VAZ 2107 car. In winter, special winter tires are used, which are softer, do not harden in the cold and provide reliable grip even on slippery surfaces. In addition, special floating spikes can be clogged into winter tires for driving in icy conditions.

However, you need to be careful when using studded tires in winter - excellent grip on ice is replaced by reduced stability on asphalt. And the wear of the spikes on the pavement is accelerating. Experts say that high-quality winter tires provide better vehicle stability than studded ones.

The pressure in the tires of the car must be checked regularly and maintained at the values ​​recommended by the vehicle manufacturer. Deviation from the established norm can lead to a variety of consequences, and most importantly, traffic safety depends on it. What pressure should be in the tires and what it affects, we will take a closer look in this article.

WHAT IS DEVELOPMENT FROM THE SET PARAMETERS

On front-wheel drive cars of the Volga Automobile Plant, such as VAZ 2110, VAZ 2114 and VAZ 2115, you can install wheels with a radius of R13, R14, R15 and R16, but the cars are only equipped with regular rims and rubber 13th and 14th radius. Optimum tire pressure depends primarily on the load and weight of the vehicle, and much more depends on road conditions and temperature. environment.

If the wheels are poorly inflated, then:

• The tire tread will wear out faster;
• It will become more difficult to drive the car, and turning the steering wheel will be harder;
• Fuel consumption will increase, and the more flat the wheels, the more noticeable the consumption of gasoline;
• There will be a tendency for the car to skid, especially on a wet and snowy road, stability will be lost;
• The power of the car will decrease, as the resistance to movement will increase.

If the wheels are inflated more than normal, then this is also not very good:

• When driving, all the bumps in the road surface are felt, the ride becomes uncomfortable. In addition, the chassis wears out faster;
• Due to less adhesion to the road surface, the braking distance is lengthened, which adversely affects traffic safety;
• The tire tread wears unevenly, and the service life of tires is noticeably reduced;
• A hernia may appear on the wheel, moreover, under high pressure, when hitting an obstacle, a rubber rupture may occur, which is not at all safe at high speed.

Below are three figures that show how the rubber tread grips the road at optimal, low and overpressure.

Many car owners are wondering what pressure should be in R14 tires on VAZ models. According to the technical specifications, the wheels on a VAZ 2114 (2115) car are pumped up to 1.9 kgf / cm² (R13), on VAZ 2110-2112 cars 2.0 kgf / cm² (R14) is recommended. Moreover, there is no difference on which axle the wheels are - on the front or rear.

IMPACT OF WEATHER CONDITIONS AND ROAD FACTORS

The pressure in the VAZ tires in summer, in principle, should be the same as in winter. But in practice, in winter it is done a little lower for a number of reasons:

• Slightly lowered tires allow you to better control the car on slippery roads, it becomes more stable;
• The suspension is made softer, and the bumps in the road are not so felt;
• The braking distance becomes shorter, the probability of an emergency situation decreases.

It is necessary to take into account the factor that after a temperature drop (after leaving a warm garage on a frosty street), the pressure in the R14 tires will become less due to physical factors. Therefore, it should be checked before you hit the road, and if necessary pump up the wheels. Also, when heat comes after winter, pressure measurements should be taken.

The pressure in R13 tires in the summer is usually maintained at 1.9 atm., But this level is designed for an average car load (two or three people in the cabin). If the machine is fully loaded, then the pressure should be increased on the front axle to 2.0-2.1 atm., On the rear axle to 2.3-2.4 atm. The spare wheel is pumped up to 2.3 atm.

Russian roads are no different good quality, and therefore many car owners deliberately reduce tire pressure somewhat so that all the bumps in the road surface are not so noticeably felt when driving. Usually, in summer, the wheels are "lowered" by 5-10%, and in winter by 10-15% of the prescribed norm. On flat trails, you can stick to the factory standard.

LARGE DIAMETER WHEELS

From the factory, the installation of wheels with a diameter of R15 and R16 is not provided, but some motorists in pursuit of fashion and improved technical specifications install them on their vases. And accordingly, you need to know what should be the pressure in R15 tires, and what pressure in R16 tires. It all depends on the workload of the VAZ model. With an average car load, the wheels are pumped up to 2 kgf / cm², on a loaded car it is better to pump them up to 2.2 kgf / cm². And if a lot of heavy luggage is placed in the trunk, then the rear tires are pumped up by another 0.2 kgf / cm². It turns out that the pressure in the R14 tires is approximately the same as the pressure in the R15 and R16 tires (for VAZ 2110-2115 models).

MEASUREMENT METHODS

How to measure the pressure in the tires of VAZ cars? Measurement can be made using a special dial gauge, but it should be noted that they may have an error of 0.2 atm. The pressure gauge can be either a separate device or as part of a wheel inflation pump.

We measure pressure very simply:

1. Reset the pressure gauge to zero;
2. We turn off the cap from the wheel spool (if any);
3. We put the pressure gauge fitting on the nipple and press;
4. We look at the indication of the arrow on the device.

The pressure can increase when the tires are heated. Often this happens if the driver prefers a dynamic driving style with frequent and sharp braking. Therefore, the measurement is made on the car before the trip, when the wheels have not yet warmed up.

FILLING TIRES WITH NITROGEN

Recently, it has become fashionable to pump up wheels not just with air, but with nitrogen.

There is an opinion that:

• Nitrogen keeps the pressure more stable, and when the wheel is heated, it does not change in the tires;
• Rubber does not age longer, because the injected air with nitrogen is cleaner;
• Wheel steel rim rusts less;
• Reduces the likelihood of rubber rupture, since nitrogen does not support combustion and reduces the explosion hazard.

Therefore, it is hardly worth succumbing to the persuasion of sellers of dubious services and throwing money away. The only thing you can be sure of is that the wheels will not be worse from nitrogen injection. If you don’t mind the money, then you can try this innovation on your car.

Any Auto Review test starts with a pressure gauge and a tire pump. After all, we, like many of our readers, are well aware of the effect tire pressure has on the behavior of a car. But in life, there are often cases when lazy motorists climb into the trunk for a pump only after colleagues standing next to the traffic lights pay attention to half-flat tires. And sometimes something else happens - omniscient craftsmen categorically claim that tires with a pressure of three atmospheres drive longer and improve all the characteristics of a car without exception ... To show once again what consequences both increased and reduced tire pressure can lead to , we decided to experiment with the editorial VAZ-2108, “shod” in Bl-85 tubeless tires of dimension 175/70 R13.

In motion, each wheel of the car, among others, is subject to a force numerically equal to the product of the rolling resistance coefficient and the weight of the car attributable to given wheel. This coefficient varies over a wide range (from 0.007 to 0.3) depending on the type of road surface, speed, size and design features of tires, as well as temperature and air pressure in tires. Since pressure is the topic of our work, we note that the coefficient of rolling resistance decreases with increasing pressure in the tire. And only with unrealistic in operation values ​​​​of 5-6 atmospheres, an inverse relationship is observed. This happens due to a decrease in losses associated with the deformation of tires during rolling - a rigid tire is less crushed and, accordingly, loses less energy to heat the internal structure during deformation. And yet - the area of ​​the contact patch decreases.

Reduced pressure, on the contrary, greatly increases tire heating and energy loss.

Everything seems to be simple: pump the wheels more and the car will roll better! But at the same time, at least, losses in comfort are inevitable - an overinflated tire stops damping the ulars when driving through bumps. But it's not just about comfort.

The pressure in the wheels and the handling of the car have a huge impact.

The manufacturer necessarily indicates the air pressure in the tires of the front and rear axles, which can be different, and often it is also specified what pressure to apply in cases of full or partial load, when driving at medium or high speeds.

So, we modulate three options wrong pressure in tires: too big, too small and normal, but ... with one half-flat tire.

Option one: hypertensive crisis

The driver, pumping up half-flat tires, asks himself the question: “Why don’t I blow air for the future, more, and forget about the pressure in the wheels until the fall? Yes, and according to theory, a car on pumped wheels rolls better and consumes less gasoline ... "

No sooner said than done. The pressure in all tires was raised to three atmospheres instead of the recommended 1.9-2.0, and our "hypertensive" leaves for the road.

First of all, using a professional research complex, we measured the maximum speed, fuel consumption, coastdown and braking distance. What turned out?

The difference compared to the normal version (at a tire pressure of 2.0 atm) is noticeable, and, in full accordance with the theory, the “eight” with “hypertensive” tires outperforms the “healthy” one in all these parameters, except for braking distance and smoothness move. The car began to roll easier; due to this, the “maximum speed” increased, and fuel consumption decreased slightly. But with brakes, the effect is reversed - an overinflated tire has less grip and, as a result, the braking distance has increased.

How has the behavior of the car changed? Hypertonic has become more athletic in its reactions, it reacts more sharply to steering turns, it has become easier to control the trajectory. The slipping of the wheels in extreme situations occurs earlier, and in addition, the effort on the steering wheel has decreased - now you spend less energy in tight turns while holding the steering wheel. But as a result, the already too small reactive action on the steering wheel in the “near-zero” zone completely disappeared.

In terms of smoothness, our forecasts were not fully justified. We expected a more significant increase in vibrations, strong shocks when driving over bumps, but there was no significant deterioration in comfort. Only driving on cobblestones and on broken asphalt revealed a slight increase in vibrations transmitted to the body by hard tires. More annoying was that all the bumps were too hard hits transmitted to the steering wheel, and especially in corners.

In addition, in motion, due to the reduction in the contact patch, the central part of the tread will wear out more, and therefore the service life of pep tires will be significantly reduced.

Option two: chronic hypotension

We kneel before our pumped tires and release two atmospheres, leaving only one locked up. Now in all the wheels of the "eight" - one atmosphere each. The option is quite real, because under reduced pressure, a radial tire with soft sidewalls does not change shape much, and a cursory glance at the wheels is often not enough to tell that they are lowered.

But you can't pass the measuring equipment. It clearly recorded the deterioration of all parameters, and quantitatively the difference with the "standard" turned out to be greater than in the case of overpressure.

In motion, while driving in a straight line, you do not feel much difference. But it is worth turning the steering wheel a little, and the increased “stubbornness” of the steering is felt instantly: the effort on the steering wheel has more than doubled. Well, it's very hard to turn the steering wheel! The “hypotonic” car became like some kind of “squish”. The sensitivity has dropped sharply, and now you have to turn the steering wheel at clearly large angles in the same turns, and the car still tends to go outside the turn.

In the limit, the reaction to the release of gas is very sluggish, almost none. There were fewer vibrations from the road, but this mainly affected small bumps, and on more significant potholes and cobblestone pavement, the shaking was no less than at normal pressure. In addition, decent pits and asphalt steps now need to either go around or reduce the speed to almost zero - otherwise a “tied” disk and a punctured tire are guaranteed.

In addition, for tubeless tires suffering from "hypotension", there is another danger - the possibility of disassembly in a turn or when an oblique collision with an obstacle (for example, a curb). We had to experience this in addition to own desire. The fact is that the test program included our standard maneuvers - “rearrangement” and “turn”. The deflated tires still survived the “rearrangement”, but in the “turn” the limit came - and in the fifth run the tire, having emitted the last atmosphere pumped into it, “disassembled”. And only thanks to the experience and reaction of the expert sitting behind the wheel, it was possible to keep the disc, the tire, and the car unscathed. If this happens in a tight turn on an ordinary road, disastrous consequences are guaranteed ...

Option three: pierced

In the case when the tire “expirs” quickly during a puncture, everything is clear - a spanking sound and shaking will tell the driver that it is time to stop and get the “reserve”. But it often happens otherwise: you “caught” a nail and drive for quite a long time, not noticing a slow decrease in tire pressure. This is especially true for tubeless tires. Can this be detected and by what signs? What can driving lead to?

with such a "gift"? We were able to answer these questions by conducting an experiment on our G8.

To begin with, one of the rear wheels turned out to be “punctured”. The pressure in it is one atmosphere, and it is almost impossible to notice by eye that the wheel is flat. In motion, we also did not notice any peculiarities in the behavior of the VAZ-2108 - the front-wheel drive car reacts poorly to a sagging rear wheel. And only bringing the car to slip, "unwinding" it from side to side, you can feel the "asymmetry" in the behavior of the "eight". When the “sick” wheel is outside of the center of the turn, the car rolls more and “screws” inward, leaving for a smaller radius. And in the opposite turn, the behavior of the car is normal again.

Thus, it is possible to recognize a low wheel on the rear axle in motion only in limiting modes. And during normal driving, there is only one tool for this - a pressure gauge.

If the pressure has dropped in the front wheel, then everything is much simpler - an increased effort on the steering wheel is instantly felt, and the car begins to “pull” towards the flat tire. If you continue driving, you can feel almost all the "charms" of the car's handling "hypotonic", not excluding the possibility of the tire "sliding" off the disk in a turn. And this is already very dangerous.

Influence of pressure in tires of the Bl-85 model (175/70 R13) on the parameters of the VAZ-2108 car

The lack of atmospheres in the tires is felt great in extreme conditions

Disassembly in motion. Fast but not safe

Having the results of measurements on hand and analyzing the driving experience on under-inflated and over-inflated tires, we can give some recommendations. First of all - keep the pressure in the tires of the car in accordance with the manufacturer's recommendations, do not be lazy to get the pressure gauge and pump once again.

Chasing after improving the performance of the car by increasing the pressure in the tires is hardly worth it - the gain is minimal and is accompanied by side effects. Even supporters of the principle “cowards need brakes” cannot but worry about the decrease in tire life.

But careless driving on half-flat wheels not only leads to a deterioration in all parameters of the car, but also threatens with a serious accident.

Many novice motorists, when purchasing a vehicle, often wonder what should be the standard R14 tire pressure parameters? The lack of professional knowledge of car maintenance and professional training in car operation very often causes elementary forgetfulness by the owner to check tire pressure. As a rule, this is considered a serious mistake and directly affects the controllability of the vehicle, which can lead to a serious accident on the road and sad consequences. But let's talk about everything in order.

Tire pressure R14

The owner of the vehicle needs to know that when using the car at different temperature readings of the environment, speed and vehicle control technique, the pressure in the wheels will change. It must be taken into account that with a temperature difference of 10 degrees, there will be a change of 0.1 barrel. At higher temperatures, for example, +25º C, the tire pressure will increase by 0.8 bar, and at -25º C, there will be a decrease to 0.8 bar.

For more optimal traction, the R14 tire pressure must be in accordance with the allowable parameters specified by the vehicle manufacturer.

It is necessary to control and check the density of the air in the wheel every time before a ride. With half-flat or pumped-over wheels, wear will be uneven and the tire will quickly become unusable. This factor also affects the safety while driving.

Remember! Tire pressure also depends on:

• type of vehicle;
• vehicle load capacity;
• wheel size;
• road surfaces;
• service life;
• conditions (weather and temperature);
• from the rubber used (winter, summer, different seasons).

What should be the pressure

For a more comfortable ride, the correct selection of tire pressure R14 is necessary. If your path will pass along a motorway with a smooth asphalt surface, then you must set the maximum value in the wheels. This will contribute to an increase in rolling during movement and give the necessary dynamics, as well as reduce the fuel consumption of your car.

If you go on a trip on dirt or sandy roads, then for high-quality traction, you should inflate the wheel, focusing on the minimum value. In the urban cycle, the average reading is suitable. This would be the best solution.

Control standards

Don't forget to use the pressure gauge before you start your trip. Properly inflated tires are essential to your safety.

Always use a vehicle with a specified tire air density reading. With overinflated tires, not only occurs uneven wear tires, and also, as a rule, the braking distance increases. This will happen due to incomplete contact of the tire with the road. You also run the risk of damaging your tires, as over-inflated wheels receive significant shock loads on uneven surfaces.

With reduced tire pressure, driving becomes more difficult. The danger of getting into a skid during sharp maneuvers increases. Vehicle consumes more fuel and, accordingly, uneven tire wear occurs.

The measurement is carried out with a special pressure gauge, which happens:

• Mechanical (switch);
• Electronic.

The unit of measurement is:

• Atmosphere (Bar) - in Russia and CIS countries;
• PSI (pound per square inch) - in Europe, USA.

Important to remember! To measure pressure, look for a high-quality device, you should not buy cheap goods or their analogues from China.

Check pressure just before driving with cold tyres.

Winter tire pressure R14

What pressure should be in the tires in winter? This question very often becomes the cause of disputes among motorists. The answer is very clear. The air density in the wheels of the car is calculated based on the mass of the car, type of transport, model, wheel size and some other parameters that affect operation. It should not diverge from the one proposed by the developer of this type of product.

The pressure in tires 175/65, 185/60, 185/65 in winter should not differ from the pressure proposed in the instructions by the car manufacturer. For example, for cars of the VAZ line, the air density in the wheel should be from 2.0-2.2 atmospheres. In winter, it is allowed to inflate the wheel to the maximum value, but the car owner must take into account, before driving, the weather conditions and, accordingly, choose the desired pressure in the wheel chamber.

In winter, many car owners are under the delusion that under-inflated tires will guarantee a softer and more comfortable ride. The pressure in winter tires R14 must also correspond to the values ​​\u200b\u200bspecified in the vehicle's operating instructions.

From the material above, we learned how to choose the right R14 tire pressure parameters and what factors can affect tire pressure. It is important to constantly monitor tire pressure, especially under different climatic conditions. It must also be remembered that the older the tire on the car, the more noticeable the decrease in pressure occurs in it.

Remember and apply the manufacturer's instructions for comfortable and safe operation of your vehicle.