How often to change the oil in automatic and manual transmissions

When should you change the oil in an automatic transmission?

An automatic transmission is a rather complex mechanism that can rarely be disassembled and repaired.

In principle, it conceptually should be like this, since the operation of an automatic transmission should be absolutely and completely isolated from external factors. But, in any case, sooner or later you have to change the oil in the automatic transmission, since it ensures its operation and durability.

Is it worth changing the oil at all?

If you do not change the oil on time or use the wrong type or type of oil, you can significantly damage the quality of the automatic transmission and the entire car as a whole.

This may even cause the need for repair work if, for example, the oil in the automatic transmission overheats and is not replaced in time, which will lead to jamming, deformation or even emergency situations.

And since automatic transmissions, as well as their individual elements and parts, are quite expensive, using the right oil and maintaining all the necessary rules for changing the transmission oil on time becomes the only way to guarantee long service life of the transmission and the car as a whole.

Changing the automatic transmission oil

To ensure long-term operation and maintain high performance characteristics of an automatic transmission, it is worth monitoring two main factors in the use of oil:

Firstly, the oil needs to be changed on time - after every nominal number of kilometers, even if there are no complaints about the operation of the transmission.
Secondly, you need to constantly ensure that the level of transmission oil remains stable and ensures full functionality of the box, because oil leakage, depressurization of the box and oil burnout due to friction can lead to the most irreversible consequences.

In addition, during filling, some drivers do not even know how to find out what type of ATF is used in the automatic transmission transmission. As a result, the automatic transmission of such drivers often breaks down, but the reason for this is not the stereotypical unreliability of the automatic transmission, but simply a banal factor - insufficiently good car care.

Timely oil change

The concept of timely oil changes is a fairly relative value. This indicator is influenced by two factors.

It is worth knowing that there are 2 main oil change periods indicated by car manufacturers:

The first indicates after what mileage during normal use of the car it is worth changing the automatic transmission oil;
The second is how often the oil should be changed under harsh operating conditions of the vehicle in general and the gearbox in particular.

Vehicle manuals always indicate both of these periods. Most often, under harsh operating conditions, a period is indicated for automatic transmissions that is 2 times shorter than the main one.

Severe operating conditions

In difficult conditions, the car operates when it transports large loads, moves over rough terrain, poor road surfaces, at fairly extreme temperatures, as well as when driving at high speed and using the “Start-Stop” system in city traffic jams.

Moreover, the more intense the operating conditions, the more often the oil will have to be changed, perhaps even more often than indicated in the manual. But at the same time, it is important not to forget to monitor the oil level and constantly add lubricant of the same brand to the automatic transmission.

Source: http://AvtoTehnar.ru/kogda-sleduet-menyat-maslo-v-korobke-avtomat/

How often to change the oil in the box - tips and tricks

The “life” of a car directly depends on how long its engine, body and, of course, transmission . Each of the above components in turn depends on the car owner and his responsibility, as well as the correct care of his vehicle.

To ensure that all vehicle components are in proper condition, it is necessary to constantly monitor the level and condition of the oil, which reduces friction between surfaces.

How often to change the oil in the box and what brand to fill depends on the car and the intensity of its use.

Experts, when asked how often to change the oil in the transmission , recommend that you first of all follow the operating instructions for the car.

The oil in the automatic transmission must be changed after 35-40 thousand km. mileage

If the car is subject to heavy loads and is used daily, it is recommended to change the gearbox oil at least once a year.

When to change the oil in the gearbox of a used foreign car

Cars with the prefix used require special attention, since it is impossible to say exactly how the previous owner treated it, as well as when and what kind of oil he poured into the transmission, so when buying a car that is not new, it is difficult to say how long to change the oil , it is better Just don’t take risks and fill in a new one.

If the car was driven from abroad, then most likely only the engine oil, as well as the oil, air and fuel filters, were changed.

And for some reason many people forget about the need to change the oil in the gearbox , which subsequently entails a lot of unpleasant moments associated with severe wear of parts and the need for major repairs.

Classification of transmission oils

Mineral oil , or as it is also called “mineral oil,” is most often used in low-speed gearboxes and axles, in which the friction is not too high, and the engine speed is within 2-3 thousand revolutions.

This category mainly includes rear-wheel drive models, such as our VAZ or some semi-truck models. It should be noted that the question of how often to change the oil in such a box cannot be answered unambiguously, approximately every 30 - 40 thousand km.

, this is explained by the fact that mineral oil is almost not subject to purification, which means it quickly loses its beneficial qualities. The price of “mineral water” is the lowest among all existing types of oil.

Semi-synthetic oil or “semi-synthetic” is used in high-speed cars, as well as in those that have a high load. High-speed motors are those whose operating range is 3 – 4 thousand rpm.

These include front-wheel drive cars, for example, the entire tenth series of “our” VAZ, that is, Lada Priora, Lada Kalina, Lada Granta and so on, as well as many budget foreign cars.

“ Semi-synthetics ” contain special chemically active additives that help reduce friction and corrosion by enveloping gears and parts with a damage-resistant film.

The advantages of semi-synthetic oil include its affordable cost compared to synthetics. How often should you change semi-synthetic oil? Replacement of “semi-synthetics” is necessary every 40 – 50 thousand km.

Synthetic oil , or as it is also called “synthetic”, is used mainly for automatic transmissions, that is, for automatic transmissions. The most purified “synthetics” contain a complete set of all necessary additives that prevent stress, corrosion and protect against wear.

It should be noted that synthetics are also used in some manual transmissions (manual transmissions), which are used mainly in expensive high-speed foreign cars. The cost of synthetic oil is high, but it is quite justified, since the oil , as they say, does its job.

Naturally, the usual question arises: when to change the oil in the box if it is filled with “synthetic”. Answer: to change such oil in a manual transmission at least every 60 - 70 thousand km. mileage, in automatic transmission a little more often, after about 50 thousand.

km, this is explained by the fact that “automatic machines” use a more complex mechanism, therefore there are more spare parts and friction, as you understand, twice as much.

That’s actually all that concerns the issue of changing the oil in the gearbox . To sum up the above, I want to say once again that there is no clear answer to the question: “ How often should I change the oil !” - no, it all depends on many factors that should be taken into account when purchasing and replacing.

When buying oil, remember: the age of your car, the maximum number of engine speeds, and also take into account the intensity of use of your vehicle and, of course, your financial capabilities.

Remember, timely oil changes and proper car maintenance are the key to long and stable car service!

Source: http://avtopulsar.ru/cherez-skolko-menyat-maslo-v-korobke-sovety-i-rekomendacii/

How often should you change the oil in an automatic transmission?

After this, the sample must be carefully examined. The color of the composition does not matter, since during operation the pink liquid can turn black. The main indicator of quality is transparency. The napkin should be clearly visible through the oil. If the lubricant is cloudy, it needs to be changed. The worst thing is if chips and other solid particles are visible in the lubricant.

This means that the transmission parts are wearing out a lot, and a breakdown will soon occur. You can also smell the fluid - a burning smell also indicates an automatic transmission malfunction. In this case, replacing the lubricant is unlikely to help. True, in order to make a more accurate “diagnosis”, you can completely drain it and remove the crankcase cover.

If the inside of the lid is clean, then there are no serious problems with the box.

How often do you need to change the oil in an automatic transmission?

The first indicates after what mileage during normal use of the car it is worth changing the automatic transmission oil;
The second is how often the oil should be changed under harsh operating conditions of the vehicle in general and the gearbox in particular.

Vehicle manuals always indicate both of these periods. Most often, under harsh operating conditions, a period is indicated for automatic transmissions that is 2 times shorter than the main one.

Important It is usually recommended to change the transmission oil every 20, 40 or 60 thousand kilometers - depending on the car model and year of manufacture. But in some new brands of cars, the oil change period reaches 80,000-90,000 kilometers or even more.

What is the interval from replacement to automatic transmission oil change?

What do the manufacturers of transmissions themselves recommend, if in this matter you cannot rely on car manufacturers? Companies producing automatic transmissions from Germany and Japan say that timely replacement of ATF (transmission fluid) is required for any modern automatic transmission. The frequency of changing transmission oil is approximately 60-70 thousand kilometers, or every three to five years, depending on how the car is used.

403 - access denied

This type of transmission does not allow the oil to retain its beneficial properties for more than 60 thousand kilometers, and at this point it should be replaced so that the gearbox does not fail. When to change automatic transmission oil? If you decide to follow the transmission manufacturer's recommendations and change the gearbox oil, you should not do it as often as changing engine oil.

Attention: The best option is to search for information on the frequency of oil changes specifically for your transmission. Such information can be easily found on the Internet.

The driver of the car is accustomed to dynamic driving. Quick start from a standstill and sharp braking;
The car is used in urban environments.

Is it necessary and how often to change the oil in an automatic transmission?

In turn, gear oil operates under much “milder” conditions, and you may get the impression that its replacement is not required. There are two opinions on this matter, each of which has its own justification:

There is no need to change the oil in the automatic transmission. This is what the manufacturers of most cars that produce models with automatic transmissions say. If you look at the “passport” of the car brand, you will see a note that the automatic transmission has been filled with oil for the entire service life of the car. Here, manufacturers are being a little disingenuous, hiding behind average numbers. Most often in European countries, a car is purchased for a period of up to 5 years or up to 150 thousand kilometers.

When should you change the oil in an automatic transmission?

Whose recommendations are correct?

What additives should I use in automatic transmissions?

What factors influence the need to replace the fluid in an automatic transmission?
First, it’s worth finding out what the phrase “the entire period of operation of the machine” means. European manufacturers for the most part talk about 125 thousand - 145 thousand.

kilometers covered by the car in 3 years (maximum in 5 years). In fact, the beneficial qualities of the oil filled at the factory are quite enough to operate the car without problems during the period indicated above.

After all, transmission oil (unlike motor oil) is not contaminated by combustion products (which are formed during engine operation), and there is also no waste of this product.

So, if you purchased a new car and plan to use it for about 3-5 years, then there is no reason to worry about changing the transmission oil.

Should you change the oil in an automatic transmission and how often to do it - tips for novice car enthusiasts

Timely oil change The concept of timely oil change is a fairly relative value. This indicator is influenced by two factors.

Changing the oil in an automatic transmission

When the oil becomes contaminated with metal abrasives (or other steel products resulting from prolonged friction), the electronic elements of the automatic transmission (for example, a speed sensor) may begin to malfunction.

Many people ask: is it worth replacing a metal oil filter (the one with a mesh), or will washing it be enough? Read a detailed article about the need to replace the filter in an automatic transmission.

Since the oil contains various resinous substances that periodically cover the filter mesh (which deteriorates its throughput), the best solution in this situation would be to completely replace this part.

Another important point: change the oil in the automatic transmission before any interruptions occur in the gearbox.

Should I change the oil in the automatic transmission? myths and reality

The fact is that in the last ten years, automakers have changed their strategy; today more and more companies are betting on the disposability of cars.

In simple words, after sale, the car should drive smoothly (without causing trouble to the dealership, as well as the driver) for the entire warranty period.

Serve the unserviceable? Is it necessary to change the oil in an automatic transmission? Let's return to our automatic transmissions. Most brands state that their automatic transmissions are not serviceable for the entire warranty period, that is, they do not require any oil (transmission fluid) changes.

How often to change automatic transmission oil, expert recommendations

Owners of new cars are least concerned about the issue of changing the oil in the automatic transmission. If you are the owner of a car with experience, the actual mileage of which exceeds 50 thousand kilometers, then the question of whether it is necessary to change the oil in the automatic transmission should occupy you much more. Especially if your car was recently imported from Western Europe.

Why change? Why is there a need to replace this component? Although automatic transmission oil does not contain as much waste as engine oil, its long-term operation still has its negative consequences. Various types of metal dust and other undesirable friction products will sooner or later exceed their permissible concentration.

All automatic transmissions are equipped with a special oil filter that is designed to protect the oil.

Source: http://aval48.ru/kak-chasto-nado-menyat-maslo-v-korobke-avtomat/

How to Change Transmission Oil Often ~ VESKO-TRANS.RU

When to change the oil in the box? Advice from professionals

If everything is clear with the motor lubricating fluid, then the question of when to change the oil in the box and whether it is necessary to do it at all is still open for many motorists.

It seems that everything is sealed there, no contaminants get inside, so there seems to be no need for replacement.

Moreover, some manufacturers claim that the oil they fill will be enough for the entire service life of the vehicle.

So you change the oil in the box or drive and not worry about it?

Why is replacement needed?

Both motor and transmission oils contain base oils and additives. Based on this, their characteristics are revealed, and additives also improve the work, performing different functions.

In addition to lubricating, transmission oils have another important task: they remove heat from the gears that are in mesh.

On average, the temperature in the gearbox is kept at 100-50 degrees, and in the gear itself it reaches three hundred. Under such heavy loads, the lubricant naturally begins to foam and lose its beneficial properties. In automatic transmissions, it also plays the role of a working fluid, transmitting torque from the motor to the gears.

If it comes to foamy lubricant, the car simply will not be able to drive. In this case, even special radiators designed to cool water will not help. But the situation is helped by special additives included in the oil.

When to change the gearbox oil

So, replacement may be required specifically because additives lose their functionality over time. They cease to firmly protect the rubbing parts, which is why the latter are subject to rapid wear. Foamed oil can cause the main gear to jam.

As a result, the gears begin to hum. And after fifty kilometers the process of their destruction will begin. It will all end with the box jamming and driving will be impossible. This is typical for front-wheel drive and all-wheel drive. For rear-wheel drive cars with a manual transmission, the oil does not experience such strong temperature loads.

Therefore, it can be used up to twenty thousand kilometers longer than with an automatic transmission. Usually, when the time comes when it is necessary to change the oil in the gearbox, the period for changing the oil in the gearbox also applies.

The procedure is carried out in order to remove dirt and chips released during the operation of the gears, which come out along with the lubricant.

In order for the mechanism to wear out less and last longer, manufacturers usually indicate the period after which to change the oil in the gearbox, equal to fifty to sixty thousand mileage, and under extreme operating conditions even less - from thirty to forty thousand.

Do I need to change the oil in a manual transmission ? Just something complicated

Let's think about it: is it even worth changing the oil in a manual transmission ? Or is it still...

Do I need to change the oil in a manual transmission?

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However, there are a number of models in which transmission lubricant is filled for the entire period of operation. In such cases, there is not even a drain plug or dipstick for checking the level.

CVT automatic

It’s worth mentioning separately about automatic transmissions, namely CVT varieties. To understand when to change the oil in an automatic transmission of this type, you need to study their operating principle. The fact is that they are designed differently from a conventional transmission, although they belong to the automatic class.

Their operating mode is more stringent, so special lubricant is required for such boxes. It is recommended to change it once every fifty thousand kilometers, and if the driving is usually intense, then once every thirty thousand.

The frequency of such replacement must be strictly followed, since under such conditions additives lose their properties much faster.

As for whether to flush the unit when replacing it or not, just as in the case of motor oil, experts do not have a consensus. I just want to say that if you do this, it is best to use the same oil that will be poured in later. Such flushing will be the key to stable and long-term operation of the transmission in the future.

Examination

The oil level in a manual transmission is usually checked after the car has been idle overnight. The longer it sits with the engine turned off, the more accurate the results will be in order to understand when to change the oil in the gearbox.

Replacement

If the recommended mileage has been completed, and the time has come to change the oil in an automatic or manual transmission, and also if, during the check, you come to the conclusion that this needs to be done urgently, the process begins with a preheated engine.

Draining is done by unscrewing the plug located at the base of the crankcase. It is pre-wiped and the container is placed. After draining, the thread is wiped, a new washer is put on, and the plug is attached in place.

It should be noted that it is not possible to completely drain the oil from an automatic transmission. However, it will be enough to remove the abrasive from the inside.

What kind of oil to fill

It is important not only to know how often to change the gearbox oil and follow this, but also to use exactly the lubricant that is suitable for your car. You must purchase a fluid that is prescribed by the car manufacturer. However, if the instruction manual has not been preserved, then general recommendations are followed.

Oils, both motor and transmission, are mineral, semi-synthetic and synthetic.

Mineral ones are usually used only in certain trucks and domestic rear-wheel drive cars.

Semi-synthetics are also recommended for our cars and those foreign cars that operate at low speeds. It is inexpensive and has better characteristics compared to mineral water.

Synthetic oils are the most expensive, but they are also equipped with the best package of various additives, the properties of which last much longer. Therefore, the period after which to change the oil in the gearbox will increase when using synthetics.

For excellent transmission performance, it is better, of course, not to spare money on oil and use synthetics. ATF ( oil ) can often be used for manual transmissions: it has better characteristics compared to those oils recommended for manual transmissions.

Source: http://vesko-trans.ru/kak-chasto-menjat-maslo-v-korobke-peredach/

Should I change the oil in the automatic transmission? Myths and reality

It is worth initially noting that the information given below is relevant only for cars whose year of manufacture exceeds 1995. The automatic transmission of these cars, as a rule, contains synthetic (sometimes semi-synthetic) oil. Older transmissions, which are filled with mineral oil by the manufacturer, need to be replaced approximately every 25,000 km.

As we already said at the beginning of the article, many designers and servicemen claim that the oil in the automatic transmission does not need to be changed.

Other manufacturers answered the question: “should I change the oil in the automatic transmission?” They answer that if the car is used quite intensively, then this procedure should be carried out every 50 thousand.

kilometers of vehicle mileage, but if the operating mode was more gentle - then every 60 thousand kilometers. Whose recommendations are correct?

What additives should I use in automatic transmissions?

What factors influence the need to replace the fluid in an automatic transmission?

First, it’s worth finding out what the phrase “the entire period of operation of the machine” means. European manufacturers for the most part talk about 125 thousand - 145 thousand kilometers that a car covers in 3 years (maximum in 5 years).

In fact, the beneficial qualities of the oil filled at the factory are quite enough to operate the car without problems during the period indicated above. After all, transmission oil (unlike motor oil) is not contaminated by combustion products (which are formed during engine operation), and there is also no waste of this product.

So, if you purchased a new car and plan to use it for about 3-5 years, then there is no reason to worry about changing the transmission oil.

Owners of new cars are least concerned about the issue of changing the oil in the automatic transmission

If you are the owner of a car with experience, the actual mileage of which exceeds 50 thousand kilometers, then the question: whether it is necessary to change the oil in the automatic transmission should occupy you much more. Especially if your car was recently imported from Western Europe.

Why change?

Why is there a need to replace this component? Although automatic transmission oil does not contain as much waste as engine oil, its long-term operation still has its negative consequences.

Various types of metal dust and other undesirable friction products will sooner or later exceed their permissible concentration. All automatic transmissions are equipped with a special oil filter that is designed to protect the oil.

Over time, the amount of debris in the filter reaches a critical mass, as a result of which its throughput becomes significantly less. This puts a lot of strain on the automatic transmission oil pump. The oil itself gets very hot, and its lubricating properties (due to excessive overheating) become less stable.

Sometimes, due to accumulated debris, the automatic transmission filter becomes so clogged that as a result it begins to tear (when the filter is paper) or the car simply stops (when the filter is made of metal mesh).

This is what a dirty and worn automatic transmission filter looks like

Also, severe contamination leads to rapid wear of parts. For example, solenoid valves, valves located in the hydraulic unit, and pressure regulators may be damaged.

Many people ask: is it worth replacing a metal oil filter (the one with a mesh), or will washing it be enough? Read a detailed article about the need to replace the filter in an automatic transmission.

Another important point: change the oil in the automatic transmission before any interruptions occur in the gearbox. The fact is that if problems have already begun, then changing the oil in the vast majority of cases will not give positive results. Only a complete renovation will help here.

To summarize: what ATF should I fill?

What oils should you use when replacing an already used product? Of course, original oils recommended by the manufacturer of a particular car, or as close as possible to them.

An unambiguous analogue will be the oil that is in a container that has the same spare part number as the part from your car, but from a specific manufacturer of the product in question, and not from the company that created the car. For example, it could be ExxonMobil.

Car manufacturers, unfortunately, do not produce oils, but only repackage them. Other oils, in principle, can also be used, but with great caution.

We advise you to check the possibility of using a particular oil in our “Repair Manuals” section, in which we have provided documentation for each automatic transmission model.

Where do chips in oil come from? Torque converter wear.

Be sure to familiarize yourself with the indicators and properties of ATF; Sometimes it may turn out that the oil purchased as a replacement turns out to be better than the “native” one.

Indeed, unfortunately, when choosing oil, car manufacturers are often driven not by the desire to provide the car enthusiast with a good product, but by the desire to sell more goods under their brand, thus maximizing the total income.

It is worth noting that a complete oil change is possible only in the case of a complete overhaul of the gearbox (when troubleshooting problems that arise) and the torque converter. Otherwise, there is a high risk of mixing oils from different manufacturers, which is not entirely desirable.

The main rule is to use only original oil.

Receivers who work as technicians in automotive centers often like to tell the following story.

That “old oil is thicker due to excess dust and other contaminants; and if you replace it in a gearbox that has partially worn out friction discs, then thanks to the new, rarer and uncontaminated oil, the worn out clutches will often begin to slip; As a result, a car that has arrived safely (on its own) at its destination runs the risk of not even moving after an oil change.” This is nothing more than a “horror story”. After all, partially worn out clutches will slip in the same way both on old oil, “thick” with dirt, and on new, cleaner oil.

Well, these were the main controversial points regarding changing the oil in an automatic transmission. The decision about whether this procedure is necessary for your car is up to you.

Source: http://akpphelp.ru/menyat_li_maslo_v_akpp.html

When to change the oil in an automatic transmission

Cars with an automatic transmission provide a greater level of driving comfort than cars with a manual transmission.

There is no need to constantly change gears in response to changing road conditions, because the automatic transmission handles this work on its own.

After reading the article, you will find out what processes occur in an automatic transmission and how long this unit will work without changing the oil. This will help you understand when to change the automatic transmission oil.

What does oil do in an automatic transmission?

Unlike an engine, where oil only performs the functions of lubricating and partially cooling parts, in an automatic transmission (automatic transmission) it is one of the participants in the process of converting speed and torque. The exception is automatic transmission with CVT.

The condition of the oil (hydraulic fluid, ATF) determines how and for how long the gearbox will operate. During operation of the machine, many parts heat up to a temperature of 200–300 degrees, which leads to an increase in the ATF temperature.

Because of this, the oil in the automatic transmission heats up 30-50 degrees hotter than in the engine.

The unit operates optimally only when the viscosity of the hydraulic fluid reaches the value specified by the manufacturer, which corresponds to a temperature of 80-110 degrees.

If the temperature is below this value, the viscosity increases excessively. If the temperature is higher than normal, the viscosity decreases.

If the automatic transmission and oil are designed to operate at maximum temperatures, then driving with an unheated automatic transmission leads to accelerated wear of parts. The only way to warm it up properly is by driving.

If the automatic transmission and oil are designed for average temperatures, then the wear of parts during warming up is reduced. But wear increases when the oil overheats.

What changes the properties of oil

Changes in oil properties are affected by:

road surface condition;
traffic jams and traffic rhythm;
condition of automatic transmission parts;
driving style.

On a poorly paved road, the car moves in low gears. In this case, the rotation speed of the torque converter and the input shaft of the automatic transmission is the same as when driving at high speed. That is, the same distance traveled along the highway and on a broken road has a different effect on the resource of the box.

Traffic jams and an irregular driving rhythm with constant acceleration and deceleration consume the automatic transmission resource many times more than calm driving on the highway. The use of low-quality fuel leads to the fact that the required engine power appears at higher speeds.

And the higher the crankshaft speed, the more the hydraulic fluid heats up.

Automatic transmission filter

Over time, metal shavings appear in the hydraulic fluid. This is typical of any automatic transmission due to the deterioration of the lubricating properties of ATF. If an oil filter is installed inside the unit, the chips settle in it.

However, by the time the chips reach the filter, they can cause serious damage. With a manual transmission, chips are less dangerous because there are no small channels or jets through which hydraulic fluid moves.

Once in the jet, chips will reduce its throughput and lead to poor gear shifting. Aggressive driving style and frequent acceleration at high engine speeds lead to stronger heating of the ATF, which reduces its lubricating properties.

The service life of an automatic transmission depends both on the quality of manufacture and on how many hours or kilometers the unit operates in non-optimal conditions.

Do I need to change ATF?

Contrary to the assurances of manufacturers that the hydraulic fluid of modern transmissions works efficiently throughout the entire service life of the vehicle, one example can be given that was published on one of the auto mechanics forums.

Two BMW X5 cars (E70 body, manufactured in 2008). One owner did as it was written in the car's operating manual and did not change the oil at all. The automatic transmission failed when the mileage was 365 thousand kilometers.

The owner of another car decided not to take risks and changed the hydraulic fluid when the mileage reached 250 thousand kilometers. After 60 thousand kilometers the unit had to be replaced. Despite the fact that automatic transmissions of BMW cars produced at the end of the 20th and beginning of the 21st centuries often ran at least 500 thousand kilometers before repair.

This only says one thing - without replacing the hydraulic fluid, irreversible changes begin in the box after 200–250 thousand kilometers.

How long will the parts last if the hydraulic fluid does not provide the required level of lubrication? The average service life of a car in Europe is 3-5 years, the average mileage during this time is 150-200 thousand kilometers.

Therefore, automatic transmission manufacturers rely on this data. If you are satisfied with a mileage of 200–300 thousand before replacing the box, then follow the manufacturer’s recommendations and get ready to repair or change it.

Regular oil changes can extend the range of the automatic transmission to 400–600 thousand kilometers.

When to change ATF

How to determine when to change the oil in the box if each manufacturer indicates different data?

How many kilometers are considered critical? Some write that it needs to be changed after 60 thousand kilometers. Others say after 100 or 150. Still others recommend not changing at all. There is a general rule that applies to all cars:

smooth acceleration and braking;
driving at a constant speed on flat roads;
use of high-quality gasoline.

If you always meet these conditions, then changing the automatic transmission oil is necessary after 100–150 thousand kilometers. If some rule of ideal driving is regularly violated, it reduces the mileage, after which the ATF needs to be replaced by 25 percent. If two or three rules are violated, their effect on mileage is added up.

When operating a car in conditions where all three rules are constantly violated, you must understand that without an oil change, irreversible changes in parts begin after 80–120 thousand kilometers. No one knows how long the automatic transmission will work after these changes begin.

In such conditions, changing the automatic transmission oil after 50–70 thousand kilometers will significantly extend the service life of the unit.

AutoLirika.ru

How often is it recommended to change the automatic transmission oil?

How often do you change the automatic transmission oil? If you adhere to several points on the operation of automatic gearboxes, you can compare the period of their operation with the life cycle of the car.

Firstly, you need to monitor the level of the working fluid so that it does not fall.
Secondly, it is necessary to control the oil condition.

Source: http://autoprivat.ru/remont_avto/kogda_menyat_maslo_v_korobke_peredach_avtomat.html

All about changing gearbox oil

Oil helps the gearbox feel good, namely its quality. There is often a debate among car enthusiasts: is it worth changing the gearbox oil at all? It would seem, why not? But the fact is that problems with the gearbox happen so rarely that other parts of the car are more likely to break down when the transmission still feels quite vigorous.

The car no longer drives at all, but she is still quite well. And therefore, many believe that the gearbox does not need to replace the fluid at all: all you need is the factory binder addition and drive as much as you like. But this is not entirely the right approach.

Working and burnt oil in cups

When is the best time to replace?

If there are strange sounds in the box

During the operation of the gearbox, moisture and metal particles get into it, torn from the gears during their wear. And this leads to a loss of quality and regulatory functions of the checkpoint. Therefore, while shifting gears, listen for strange sounds that you have not noticed before. This may include grinding, buzzing, buzzing or howling sounds.

If upon inspection it is clear that the oil has turned black and smells of burning

To be completely sure, you need to inspect the fluid using a dipstick to check the level. If it turns black and emits a burning smell, then perhaps the time has come when it is simply necessary to change the lubricant.

Depending on mileage

Depending on the car manufacturer and operating conditions, the mileage at which it is advisable to change the oil varies. Some experts advise changing after 30-40 thousand km, others say replacing after 50-60 thousand km. There is also an opinion that changing a viscous fluid after a mileage of 100-130 thousand km, after the previous replacement, is normal practice.

Of course, although the gearbox is a stable part of the car, replacing it after 60 thousand kilometers will be the best and sufficient option . As most experienced specialists recommend. When buying a used car, it is advisable to also replace it, because who knows the last time the previous owner did this.

What kind of oil should I fill in?

Contrary to the opinions and statements of automakers that you can also fill in motor oils, know that it is gear oils that need to be used for gearboxes. This is probably what most auto repair shops will tell you.

There are different types of oils: MTF and ATF, which corresponds to mechanical and automatic types of gearboxes. Both types can be purchased at almost any car service center or specialized stores.

Transmission fluid in bottles from LIQUI MOLY

But here the question arises: on what basis is it better to make your choice?

Types of transmission fluids

Synthetic - have in their features very high performance and characteristics, as well as an equally high price.
Semi-synthetic - quality and price are the most appropriate and optimal, therefore oily liquids on this basis are most popular.
Mineral base.

Classification by load level and viscosity grade

1. APL – load level that this substance can withstand:

GL-1 - when working in light conditions;
GL-2 - moderate severity;
GL-3 - moderate loads;
GL-4 - severe conditions;
GL-5 - very difficult conditions;
GL-6 is the most severe, but I think that you are unlikely to find this anywhere.

Most often, car enthusiasts use GL-4 and GL-5.

2. SAE – viscosity grade:

winter;
summer;
all-season.

Viscosity grade	Maksim. temp., at cat. mating not exceed 150000 cP, oC	Kinematic viscosity at 100 °C, cSt
minimum	maximum
70W	55	4,1	—
75W	40	4,1	—
80W	26	7,0	—
85W	12	11,0	—
90	—	13,5	24,0
140	—	24,0	41,0
250	—	41,0	—

Table of viscosity grade depending on the class of gear oil (according to SAE)

How much is poured into the gearbox?

The minimum and acceptable oil volume may vary from vehicle to vehicle. To begin with, you need to read this in the manual or operating manual of your car, where it should indicate how much is permissible.

It is often filled to the MAX mark, but some experts recommend overfilling, but not more than 200 ml of the permissible amount (many argue that this is good for 5th gear).

Now you know the type, differences and advantages of gear oils, the choice of which is huge and the choice is yours!