Changing the oil in an automatic transmission

When to change the automatic transmission oil and how to check it before changing it? Selecting automatic transmission oil

An automatic transmission (AT) is one of the most reliable components of a car. Its repair is included in the warranty, and car manufacturers are trying to do everything possible to ensure that it does not fail before the end of the warranty period.

For the most part, automatic transmissions are designed to operate for a certain period of time, after which they may become unusable. There is an opinion that there is no need to change the oil in an automatic transmission.

We propose to find out whether this is really the case, and if you change the oil in the automatic transmission, then when?

Should I change the oil in the automatic transmission?

Any motorist knows that the engine oil needs to be changed, and it has a working life. After several thousand kilometers, the engine oil poured into the engine becomes unusable.

This is due to the fact that it operates in an environment in which many combustion products are formed.

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 automatic transmission oil. This is what the manufacturers of most cars that produce models with automatic transmission say. If you look at the “passport” of the car brand, you can see a record that the automatic transmission oil is filled for the entire service life of the car. Here the 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. Indeed, an automatic transmission can travel so much without changing the oil, but after that it will become unusable and require major repairs, and the warranty on the car will already come to an end, and you will have to completely change the automatic transmission or buy a new car.
The automatic transmission oil needs to be changed. The transmission manufacturers themselves say this, and they advise choosing when to change the automatic transmission oil based on mileage. Despite the absence of combustion products in used transmission oil, it still loses its properties. There are many rubbing metal parts in the gearbox that emit chips and dust. It gets into the automatic transmission oil, deteriorating its quality.

It should be noted that if we are talking about a CVT automatic transmission, then the recommendation for changing the oil is written in the “passport” of the car. 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.

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

Most often, it is indicated when to change the oil in an automatic transmission under standard or severe operating conditions. These figures vary significantly, by about 30%.

Severe operating conditions for automatic transmissions are as follows:

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. Regular start-stop mode in traffic jams and constant traffic lights forces the transmission to work more often, which quickly leads to a decrease in the quality of the oil in it;
The transmission operates in severe weather conditions - very low (below -20 degrees Celsius) or high (above 35 degrees Celsius) ambient temperatures throughout the entire service life of the vehicle;
Continuous operation of the vehicle at maximum loads. We are talking about work exceeding the permissible gross weight, for example, when transporting heavy loads, towing cars or trailers;
Regular off-road driving. Overcoming long distances by car on snow, sand, stones, gravel.

If you cannot find information on the frequency of automatic transmission oil changes for a specific transmission model, you must follow general recommendations.

Most often, an automatic transmission oil change is carried out when the vehicle is operated under normal conditions, after 60-70 thousand kilometers.

It is believed that in older car models (before the year 2000), changing the gearbox oil is required more often - once every 30-40 thousand kilometers during normal operation.

Attention: If you bought a car second-hand, we advise you to immediately change the oil in the automatic transmission or check its quality.

How to check the oil in an automatic transmission?

We recommend reading: How to check the oil level in a machine

The easiest way to check the oil in an automatic transmission is to take a sample. It is almost impossible to determine “by sound” or by the nature of the car’s movement that the oil in the box needs to be changed, unless we are talking about critical cases.

To check the oil in the automatic transmission, you should take a little sample and drop it on a white sheet of paper or rags. Next, it remains to determine the degree of oil contamination by color, in accordance with the following rules:

The oil is transparent. If the oil is clear, then it does not need to be replaced. In this case, you should not pay attention to the color of the oil. During operation, pink oil may turn black, but the main thing is that it remains transparent;
The oil is cloudy. If no white sheet is visible through the oil, it is contaminated with small particles and should be changed. In this situation, the driver can choose a complete or partial oil change;
Oil interspersed with shavings. If metal shavings or other particles are clearly visible in the oil sample taken from the box, it means that there will soon be big problems with the transmission. This oil also has a pungent burning smell. Most often, when metal shavings appear, changing the oil will no longer be able to save the automatic transmission from destruction.

If you suspect that the gearbox is beginning to deteriorate, you can completely drain the oil and remove the pan to diagnose a problem with the gearbox. A clean pallet will show that the fears were false.

If small metal shavings (so-called “hedgehogs”) have stuck to it, you should understand that the destruction of the automatic transmission has begun, and soon the transmission will stop working properly.

Having noticed obvious pieces of metal on the pallet, which can be more than 1 mm in diameter, you can diagnose the actual destruction of the gearbox and the need for urgent major repairs.

What kind of oil should I put in the automatic transmission?

An automatic transmission is an expensive unit, and it is necessary to fill it strictly with the oil recommended by the car manufacturer. If the original oil could not be found, then it is necessary to find its analogue. In the reference literature for a specific car model, as well as on the Internet, they always write the name of not only the original automatic transmission oil, but also its analogue.

Attention: It is possible to completely change the type of oil poured into an automatic transmission only if the transmission and torque converter have been completely disassembled. Mixing different “grades” of oil can lead to destruction of the gearbox.

(334

Source: https://okeydrive.ru/vse-pro-maslo-v-akpp-trebuetsya-li-ego-menyat-kak-proverit-kakoe-i-kogda-zalivat/

Full and Partial oil change in Automatic Transmission

In connection with the gradual replacement of manual transmissions in new cars with automatic ones, many people have questions: what kind of transmission oil should be poured into the automatic transmission, how to check its level and whether it is possible to replace it yourself.

What kind of oil is poured into the automatic transmission?

For flawless operation of the automatic transmission, you should use the transmission oil specified in the operating instructions.

Options for high-quality transmission oils for use in automatic transmissions:

Original ATF. The packaging of such oils shows the logo and brand name. Most major automakers have their own gear oil, produced taking into account the operating mode and adapted for these types of gearboxes.
Original OEM. They are manufactured to order in reliable factories and undergo multi-stage quality checks. Additional checks are carried out in the laboratories of car manufacturers.

Without in-depth knowledge of the range of OEM oils and manufacturer’s approvals, or without qualified assistance from specialists, it is recommended to purchase original gear oils, or alternatively, contact official dealers or the automaker’s service center.

How to check the transmission oil level

One of the guarantees for the long service life of an automatic transmission is maintaining the required level of ATF in it.

To keep the transmission in working condition, it is necessary to periodically monitor the oil level, and if it drops, top it up.

If the ATF level in an automatic transmission drops below the permissible level, the following symptoms will appear:

when the engine speed changes when the car is stationary, noise will appear in the transmission area;
When switching to higher modes, jerks will be noticeable.

The principle of monitoring the ATF level in an automatic transmission is almost the same in cars of different brands; differences can only be in the inscriptions on the dipstick. Information on how to properly carry out this procedure is available in almost every owner's manual.

Step-by-step description of the procedure for checking the transmission oil level:

If the location of the dipstick (control tool) is unknown, then on most vehicles with automatic transmission it is red, and yellow is used to measure the level in the engine and is located on its lower part of the housing.
On most cars, the selector lever position when checking should be in parking mode.
The area near the dipstick should be wiped to prevent dirt from getting into the transmission.
In most cases, the measurement is carried out with the engine running and after the ATF has warmed up, which is carried out only after a trip of 10-20 kilometers and subsequent idling for several minutes. To ensure the reliability of the data, measurements are taken on a flat surface, without a slope.
You need to pull out the dipstick and wipe it thoroughly with a clean cloth.
You need to insert the dipstick into place and remove it after 4-7 seconds.
The transmission oil level should be between “Cold” and “Hot”. When the level is closer to the “Cold” sign or below, it must be topped up; when the transmission fluid approaches the “Hot” sign or above it, the excess must be drained. Sometimes there are signatures on the rod “Full” and “Add”, which indicate the maximum or minimum height of fluid in the automatic transmission.
Carefully inspect the dipstick for dirt or metal shavings, the presence of which indicates wear of some automatic transmission mechanisms.
The automatic transmission fluid should be red. If its color changes (black or darker), the fluid must be replaced due to overheating.
For a 100% guarantee of the accuracy of the measurement results, the procedure for monitoring the liquid level should be repeated (points 5-7).

The procedure for monitoring the working fluid in some car brands differs from the generally accepted one:

Audi, BMW, Volkswagen - many models do not have dipsticks; control occurs through the inspection window at the bottom of the automatic transmission when the car is on a lift. If there is a dipstick, the transmission fluid is monitored when the selector is in the “N” position.
Dodge, Hyundai, Mazda, Jeep, Mitsubishi - when measuring the oil in an automatic transmission, the selector lever should be moved to “N”.
On Honda models, the measurement is carried out with the engine not running.

Instructions for changing oil in automatic transmissions

Automatic transmission maintenance comes down to monitoring the oil level and replacing it. If desired, you can change the transmission oil yourself.

According to generally accepted international rules, a complete oil change in an automatic transmission should be carried out after 50,000 kilometers.

Subsequently, every 20,000 kilometers, carry out a partial change of the transmission fluid by draining it (30-40%) and adding the same volume (partial replacement).

Partial replacement

This is done using the traditional method by unscrewing the drain plug. Approximately 30% of the total volume of transmission fluid will spill out. In this way, the fluid in an automatic transmission is refreshed by mixing the old with the new.

It is advisable to carry out partial oil changes in a pit or on a lift

Stages:

1. Unscrew the box pan by lifting the car with a jack, lift, or simply unscrewing it if there is a hole.

2. Unscrew the drain plug, first placing a container to drain the used oil.

3. After the liquid has completely stopped flowing out and the cap has been tightened, it is necessary to measure its volume by pouring it into another container.

4. Fill in a volume of transmission fluid through the dipstick hole equal to the amount drained. It is convenient to use a special funnel, or make one yourself from a plastic bottle.

5. Reinstall the dipstick. Start the car and let it idle for 6-10 minutes, then move the selector to different modes at intervals of 2-4 seconds. After this, measure the level and add fluid if necessary.

6. Place the box tray in place.

In this way, you can replace all the fluid in an automatic transmission. Why do you need to repeat the above algorithm 4-6 times with an interval of 100 kilometers.

Pros:

you can do it yourself, saving a considerable amount;
there is no need to immediately purchase the entire volume of a very expensive liquid;
the pan and filter are cleaned of harmful sediment and deposits, which has a beneficial effect on the functioning of the transmission;
minimal risk of washing off the “useful” coatings of automatic transmission mechanisms.

Minuses:

the total volume of oil replaced is higher than with a full change;
According to some professionals, a complete change of transmission fluid is not carried out.

Complete replacement

A complete replacement of the transmission fluid can be done either at a car service center or with your own hands.

Features of the procedure in the service:

produced using modern technological equipment;
the change is carried out by pressing using special equipment;
the old oil comes out of the box completely under pressure and fresh liquid is poured in, this procedure is carried out using pipes connected to the unit;
the ability to visually monitor the process by observing the change in oil color;
On average, a complete update will require 10 liters of ATF oil.

Minuses:

there is no guarantee of stable operation of the box after such a procedure;
washing away useful films on automatic transmission mechanisms.

Stages of the manual procedure:

Warming up the fluid in the box by traveling a distance of 6-10 kilometers. The machine must be placed above the inspection hole or raised on a lift. Be sure to remove the pan.
Unscrew the drain plug, first placing a container to drain the used oil under the hole.
It is necessary to remove the filter and torque converter, drain the remaining liquid from them, clean the filter with gasoline or solvent if it is moderately dirty. If the filter is significantly dirty, it is preferable to replace it.
To speed up the draining of the waste liquid, you need to move the selector to positions from “P” to “D”, and in the reverse order, 2-4 times. Then you need to start the engine and within no more than 60 seconds, repeat the operation.
Reinstall the filter and torque converter.
Install the pan with the obligatory replacement of the gasket.
Using a funnel or large syringe, pour 4-5 liters of working fluid into the oil filler hole.
You need to start the engine and move the selector to positions from “P” to “D”, and in the reverse order, to distribute new oil through the transmission mechanisms.
Check the level and top up if necessary. This procedure is carried out with the engine running. If the level is below the required level, add about a liter. After warming up the engine to operating parameters, repeat the control measurement.

Correctly selected transmission oil, as well as regular monitoring of its level and condition, significantly extend the service life of such a complex and expensive to repair unit as an automatic transmission.

If you have the desire and certain conditions, you can actually replace the ATF yourself, which will save a considerable amount of money.

Source: http://autovogdenie.ru/zamena-masla-v-akpp-polnym-i-chastichnym-metodom.html

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

The need to periodically change the oil in a car's automatic transmission is often ignored, especially in those regions where automatic transmissions are not very common. Most people know that engine oil needs to be changed regularly. But when it comes to the transmission, they may not interfere with its operation until problems begin.

In other words, before it's too late.

The truth is, there are many problems that cannot be prevented by simply changing the automatic transmission oil. But given the cost of repairing (or worse, replacing) an automatic transmission, it's not worth increasing the likelihood of problems that an oil change could prevent.

Before we get into the question of when to change your automatic transmission oil, let's look at why you should do it.

Why is it necessary to maintain a certain oil change interval?

Automatic transmissions are very complex mechanisms. A manual transmission is a simpler design and most problems in them arise as a result of erroneous actions by the driver. In the case of an automatic transmission, you cannot even drive it “wrongly”. Well, only if you try really hard.

In this case, gear oil plays a huge role. Automatic transmission oil is more than just a lubricant that ensures moving parts operate properly. The oil is also responsible for powering the internal hydraulics of the transmission and cooling its components. In short, oil gets into every part of the transmission.

Hydraulic system

The secret of automatic transmission operation lies mainly in the use of hydraulics. You can write a lot about this, but we will mention only a few points. In simple terms, fluid under pressure moves components in the transmission.

This is achieved by directing the oil flow through special channels inside the transmission. As the oil circulates, it passes through filters, metering valves, and many small holes.

Not to mention a few major components like the torque converter and oil cooler.

How does understanding this affect the frequency of oil changes in an automatic transmission?

Foreign particles and metal dust

The peculiarity of the clutch is that it wears out over time. During operation, metal residues and dirt enter the transmission oil. Foreign particles also enter the oil as a result of wear of other moving components, such as bearings. All this “good” gradually gets into the oil. And this is a normal process.

Blocking

You've probably already formed a picture in your head. Fluid filled with metal shavings and dirt passes through narrow channels, filters and openings - a perfect recipe for disaster.

As debris accumulates, it will begin to interfere with the operation of some parts of the automatic transmission. This can lead to clogged valves, resulting in slow or harsh gear changes.

Sometimes valves can become blocked altogether, causing one or more gears to be lost.

But the worst case scenario is significant blocking of the main gearbox filter. The purpose of the filter is to prevent contaminated oil from recirculating through the transmission.

But this also means that all liquid passes through it.

If all the fluid needed to power the transmission passes through the filter, which is gradually blocked... You understand how it will end.

Chain reaction

A blocked filter will only cause loss of traction in rare cases. But, the amount of garbage will gradually increase. Partial blocking of the filter will lead to partial oil starvation of the automatic transmission. And this is much worse than complete starvation.

The fact that transmission oil powers everything means that a transmission that is starved of oil is not capable of damaging itself.

A transmission that receives too little fluid may only have partial power to use the clutches.

If the clutch is not applied properly, it slips more than it should, causing even more debris to enter the fluid. The filter will become clogged faster, resulting in loss of drive.

The difference is that sudden filter blocking can be eliminated by replacing it and flushing the automatic transmission. If the problem develops gradually, as described in the previous paragraph, the transmission in most cases requires major repairs. And this is an expensive pleasure, to put it mildly.

Details about the automatic transmission oil change interval

We hope that the previous section convinced you of the need to regularly change the oil in your car's automatic transmission. What should this interval be? The question is not easy. There is a huge variety of automatic transmissions, and they all have different service intervals.

General principles

The first thing you need to take into account is that changing the oil in an automatic transmission will never be superfluous. You will not damage the transmission by performing this procedure more often than the manufacturer recommends. One of the interval options for changing transmission oil is about 50,000 km. If you are unable to find an official recommendation on this issue for your automatic transmission, we advise you to stick to this option.

Other typical service intervals are 100,000 km and 160,000 km. Some manufacturers claim that their development can easily cover even more than 160 thousand km without maintenance. We do not recommend trusting these words. Please note the information in the next section.

"Eternal" oil

Some transmissions, especially those from BMW, are advertised as having a sealed case and running on “perpetual” oil. This means you don't have to open up the transmission and it won't need a fluid change.

We don’t want to repeat ourselves, but we advise you to ignore such a statement.

There is a high probability that the statement about the “eternal” fluid will be formally true for the sole reason that the mechanical part of the automatic transmission will fail before the end of the normal service life of the oil.

Probably, marketers are counting on the fact that at the moment of transmission failure, the good condition of the oil should slightly lift your mood.

Change the oil anyway

As mentioned above, changing the oil too often is not a problem. If you do not take into account the cost of this service, of course. In any case, the gearbox will thank you.

An additional bonus to regularly changing transmission oil is the ability to obtain accurate information about the condition of the automatic transmission. For example, if the oil turns black and smells burnt, this is a sign of an internal problem.

This is an elementary way to check the condition of the box, but this can only be done after receiving an oil sample.

This also gives you or a service technician the opportunity to detect any oil leaks from the gearbox. Often the leaks are minimal and not so easy to notice since they do not leave puddles on the garage floor or asphalt. Of course, the oil level in the automatic transmission can be easily checked using a dipstick. But not all transmissions have it.

If your car is equipped with an automatic transmission with a dipstick, we recommend checking the oil level in the transmission at least at the same frequency as the engine oil level.

It never hurts to detect a problem in the operation of an automatic transmission at an early stage of its development.

Source: http://autofakty.com/kak-chasto-nuzhno-menyat-maslo-v-avtomaticheskoj-korobke-peredach/

How to change the oil in an automatic transmission correctly?

If you notice that your automatic transmission has started to twitch and shift late, then this is not yet a reason to panic.

Sometimes it’s enough just to wash it and change the oil, but it’s important to do this procedure correctly.

Today at car services there are many mechanics who, instead of a complete oil change, do a partial oil change, so now we will figure out how to correctly change the oil in an automatic transmission.

No matter what the instructions say, there is a universal rule - change the transmission oil every 40,000 km. It is also important to remember that there are 2 options for changing the oil in an automatic transmission:

partial oil change;
complete oil change in automatic transmission.

Partial transmission oil change

The first option, recommended for regular maintenance, is called a partial replacement. The essence of this replacement is as follows: you need to drain the oil from the automatic transmission through the drain plug; if there is no such plug, then you need to remove the transmission pan.

It is important to understand that all the oil from the automatic transmission is not drained; about half of the oil remains. Old oil remains in the automatic transmission mechanism itself, especially in the torque converter donut, valve body channels and solenoids.

Therefore, if you simply drain the oil, only half will drain, which is why this method is called a partial gear oil change.

It turns out to be a partial oil change, it is only half renewed. In general, a partial oil change is simple: lift the car on a lift, unscrew the drain plug or remove the entire pan, and drain some of the old oil into a special container.

It is advisable to clean the walls of the pan from contaminants; for this there are many special cleaning liquids, for example, the Liqui Moly Schnell Reiniger cleaner has proven itself well.

Particularly advanced mechanics measure the exact amount of drained oil, and then fill in the same amount of new oil, this allows you to get rid of setting the oil level with a dipstick.

If you remove the pan, then on almost all automatic transmissions it becomes possible to replace the oil filter. After the oil has been drained and the filter replaced, you need to put the cleaned pan back in place, to do this you need to use a new gasket or sealant.

In most cases, the automatic transmission filter kit includes a gasket. As for fresh oil, it must be poured in small portions through the dipstick hole.

Of course, you can suck out the old oil from the same dipstick hole, but for this you need to use a special technique.

It is very important that the oil level in the automatic transmission is set correctly. It is advisable to first take measurements while the gearbox is cold, and then, after the gearbox has warmed up, you should also measure the oil level.

This replacement option is more complex; in this case, all the oil in the gearbox is completely replaced; no old oil remains in all parts of the gearbox. A complete oil change in an automatic transmission should be done less often than a partial one. Full-flow oil changes are usually carried out in the following situations:

after purchasing a used car;
after 100,000 km. mileage;
if the car very often drives at high speeds and the engine overheats;
If problems arise during gear shifting, there is a problem with the solenoid unit.

Recommended article: Tiptronic: what is it?

When doing a complete oil change in an automatic transmission, you can also wash all components with special flushing agents, which not only remove contaminants, but can also restore the functionality of the torque converter locking and solenoid block.

A full-flow oil change in an automatic transmission is quite long - it takes about 1 hour, and costs money if you order this service at a service station. In order to completely drain the old oil, you need to pump fresh oil into the box, which will displace the old oil.

Also, additional oil will be required when replacing the automatic transmission filter. To fully carry out a full-flow oil change, you will need special equipment that will accurately calculate the amount of fresh oil required, as well as calculate the amount of old oil drained.

When performing a complete oil change in an automatic transmission, it is advisable to use a special product - Liqui Moly Automatik Getriebeoil Reiniger, which is designed for flushing automatic transmissions; it thoroughly cleans the valves and channels of the box, and as a result, improves the performance of the automatic transmission.

The process of completely changing the automatic transmission oil begins by checking the oil level using a dipstick; it is also advisable to carry out simple diagnostics.

After this, it is necessary to connect the flushing unit to the hydraulic system of the automatic transmission. The easiest way to connect is through the hoses of the box cooling system. In many cars you can connect using the provided clamps.

It is very important to find a radiator that cools the automatic transmission, which in most cases is located inside the main radiator of the engine cooling system.

If you provide access to the fittings, you can disconnect the supply tubes and connect them to the flushing unit.

After the new system has become sealed, it is time to start the engine. The flushing unit itself will set the fluid pressure and the direction of oil movement in the system. If there is insufficient pressure in the box, and this should not be the case, then the installation will record a fault in the box, and it will be impossible to change the oil.

It is also important to know that some car models have systems with built-in thermostats, so in such boxes, if there is no pressure in the radiator circuit, then this is normal.

It is enough to wait until the engine warms up; pressure will appear after fluid circulation is restored.

To change the oil in such a situation, you need to pin the thermostat, this is provided by the developers.

After the installation has been connected, it is time to fill in the Liqui Moly Automatik Getriebeoil Reiniger flushing fluid, which will remove all possible contamination of the gearbox and torque converter, and it will also restore the operation of the valve body and valves (solenoids).

The flushing liquid must be poured into heated oil, because at increased temperatures the detergent additives are more active.

After the flush has been filled in, you need to put the box in neutral and park mode for 6 minutes; in these modes, the box valves are cleaned best.

Next, within 5 minutes it is necessary to switch all modes of the box so that the flushing liquid circulates through all channels. To prevent the car from driving away, it must be kept on the handbrake.

Recommended article: Breaking in a new car will ensure its longevity

It is important to know that all flushing is done with the engine idling, that is, you cannot accelerate by increasing engine speed, because this will damage the gearbox.

After approximately 10 minutes of flushing, the unit must be switched to oil change mode. The unit drains the old oil and fluid into a separate canister, and then pours fresh oil into the automatic transmission.

Next, it is important to track by color when it is time to stop the operation of the installation: if the color of the incoming and outgoing liquid is the same, that is, all the old oil has been drained, and fresh oil is now circulating in the system.

After this, we can assume that the oil change was successful, but in order to get the most beneficial effect from the oil change, you need to change the oil filter.

To change it, you need to do the same as during a partial replacement - remove the pan, clean it and change the filter, then install the gasket and add more oil, which is usually lost when removing the pan.

Then you can safely disconnect the installation, return all connections to the initial position, restart the engine, check the oil level with a dipstick, and if the level is normal, then you can consider the complete oil change in the automatic transmission complete.

In general, if everything is done correctly, a full-flow oil change will take about 1 hour of work. A full-flow oil change implies additional costs for oil, which will require twice the volume of gearbox oil to flush the system. But these costs are nothing when compared with the possible costs of repairing an automatic transmission.

What tools are needed when changing the oil in an automatic transmission?

LIQUI MOLY Automatik Getriebeoil Reiniger – flushing agent for automatic transmissions

Description

Liqui Moly Automatik Getriebeoil Reiniger is a product for flushing automatic transmissions, which is professional and effective, and can also be used for prevention. Designed for full-flow oil change in an automatic transmission, it efficiently cleans the transmission components from various contaminants, after such cleaning the service life of the automatic transmission increases.

In addition, if you use Liqui Moly Automatik Getriebeoil Reiniger, the original characteristics of the box will be restored, and many problems that have arisen over time will be eliminated.

The manufacturer of Liqui Moly warns that this product can only be used at service stations that have special equipment that ensures that the entire volume of oil in the automatic transmission is replaced. A jar of Liqui Moly Automatik Getriebeoil Reiniger contains 300 ml of liquid, which is enough for 6–9 liters of gear oil.

Recommended article: 2005 Suzuki Grand Vitara on the secondary market

LIQUI MOLY ATF Top Tec 1700 – synthetic oil for automatic transmission

Description

The Liquid Moly brand is known to many motorists for its high-quality auto chemicals and motor oils. The production of lubricants is one of the main directions of the company. The company is quite popular, but it creates high-quality products that are in high demand among motorists.

As for the Liqui Moly ATF Top Tec 1700 gear oil, it is completely synthetic and is designed for modern automatic transmissions; it contains many additives that ensure high lubrication of components. In addition, this oil can be used for a long time; it does not age or oxidize.

The viscosity of this oil has a high index, which guarantees optimal gear shifting and also protects well against wear even during extreme driving.

How to use this oil

This oil can be used in all automatic transmissions from different manufacturers. When using this oil, you must comply with the specifications of the engine and transmission manufacturer. Also, for maximum transmission lubrication, it is recommended not to mix this oil with other oils.

One of the most popular products from the Liqui Moly company is considered to be the quick cleaner Liqui Moly Schnell Reiniger, which is designed to greatly facilitate installation work. Schnell Reiniger easily and quickly gets rid of various oil, grease deposits and contaminants; this product can also be used to degrease the surface, and it does not leave marks.

Schnell Reiniger from Liquid Moly does an excellent job of removing resin and lubricant residues because it has high penetrating characteristics. This product is considered a universal cleaner that can be used not only when repairing transmissions, but also on components of the brake system, clutch and even engine, wherever you need to get rid of oil stains.

Using a quick cleaner

Working with Liqui Moly Schnell Reiniger is very simple - apply the cleaner to a dirty surface and after a while it should drain; as soon as the cleaner dries, the surface of the part will become clean and grease-free.

It is important to know that this cleaner can easily damage some plastic parts, as well as varnished surfaces, so before using this product you need to check whether the cleaner is compatible with the surface that needs to be cleaned.

And then a video that shows how to correctly change the oil in an automatic transmission using a full-flow method:

Alexander Stepanoff January 26th, 2015<\p>

Source: http://avto-all.com/avtolyubitelyam-na-zametku/kak-pravilno-menyat-maslo-v-korobke-avtomat

Do-it-yourself methods for changing automatic transmission oil

Changing the oil in an automatic transmission is not the easiest procedure in a car’s maintenance schedule. Its relevance is constantly growing, along with the growing popularity of cars equipped with automatic transmissions. Simple and comfortable driving is the main advantage of the automatic transmission.

The cost of servicing a car with an automatic transmission at a service station is quite high. And this is not surprising, because the procedure for changing the oil in an automatic transmission is much more complicated than, say, changing the oil in an engine.

In a car service center, technicians use special equipment, which confuses ordinary car owners. However, savvy motorists have come up with some tricks that allow them to change the oil in an automatic transmission with their own hands.

Features of changing oil in automatic transmission

In automatic transmissions, the oil becomes very hot when driving. Therefore, the transmission is additionally equipped with a cooling radiator. Using hoses, the machine is connected to the radiator. The oil constantly circulates, cooling in the radiator and taking heat from the gearbox.

The automatic transmission oil must be changed every 50-60 thousand kilometers. This is due to the fact that over time the oil loses some important properties. In addition, during operation, small metal particles appear in it, leading to increased wear of automatic transmission parts.

You only need to fill in with high-quality gear oil, which is recommended by the car manufacturer. In this case, it is advisable to clean the automatic transmission tray and wash or replace the filter.

Even when removing the automatic transmission pan, not all the oil from the transmission is drained. Some of it remains in the pipes and radiator. This is where the main difficulty lies in changing the oil in a machine with your own hands.

The process of changing the oil in an automatic transmission at a service station

A complete oil change in an automatic transmission is carried out using a special device, by squeezing out the used transmission fluid. The sequence of actions at the service station is as follows:

first, the pipes connecting the machine to the radiator are disconnected,
hoses of the oil change machine are mounted to them,
the car engine starts and the device turns on,
old oil is gradually replaced by new oil.

The presence of a transparent technological window allows you to determine when light new oil begins to flow from the automatic transmission. Thanks to this, the process is completed with minimal loss of fresh transmission fluid.

Do-it-yourself partial oil change in an automatic transmission

The simplest and most affordable way to change the oil in an automatic transmission is to refresh it step by step. To work, you will need an inspection hole or a lift.

First you should check the level of waste fluid using a dipstick.
A container is installed under the automatic transmission crankcase to collect waste. The drain plug in the pan is unscrewed.
When the oil is completely drained, remove the pan and filter.
When cleaning the interior of the tray, it is important not to lose the magnets. They are also washed and wiped dry. The filter is changed or thoroughly washed.
Having installed a new gasket, the pan and the filter are mounted in place.
Using a funnel, new oil is poured in. Its volume should be the same as that of the “working off”. The check is carried out using a dipstick.

Since some of the old oil remained in the radiator as a result of partial replacement, after starting the engine, the old and new transmission fluid will mix. After 300-500 km, the procedure should be repeated.

The positive aspects of a phased replacement include:

savings on service at a car service center,
low oil consumption with one-time replacement,
the ability to assess the condition of automatic transmission parts by the condition of the magnets.

Significant disadvantages include:

impossibility of completely changing the oil,
high total oil consumption during a 3-4 stage replacement.

Do-it-yourself complete oil change in an automatic transmission

There are several methods for completely changing the oil in an automatic transmission. Among “garage” specialists, oil change pumps are common (for example, as in the photo above).

But since such a pump also costs money, some motorists try to make do with improvised means.

Some use a compressor to inflate tires, while others even manage to do the job using a thick plastic bag.

In most cases, the procedure for changing the oil in an automatic transmission is as follows:

First you need to remove the automatic transmission pan and filter and then clean it. Once these box pieces are in place, it's time to get creative and creative.
The oil drain pipes are disconnected from the radiator or gearbox.
Extension hoses should be attached to them. According to one of them, clean oil will go to the machine, and according to the other, “working off” will be displaced.

To force clean oil into the automatic transmission, there are the following “folk” methods:

Using a compressor

First you need to make a small modification to any plastic canister or other container with a volume of 10 liters. To do this, two holes are made in its upper part into which tubes are hermetically inserted:

one for supplying compressed air;
the second is for the release of “fresh” oil (it sinks to the bottom of the canister).

You can use rubber bands to seal the holes.

The pipe lowered to the bottom of the canister is connected to the radiator hose, and the other pipe from the canister is connected to the compressor. The waste will be drained through the second radiator hose.

After the entire system is assembled, you need to start the compressor and start the car. Clean oil will flow into the box, and the used liquid will begin to be squeezed out into the drain container. When clean oil flows from the drain hose, the operation stops.

Application of plastic bag

You should start working by cutting a transparent pipe into the bottom of the canister. It is needed to supply clean oil. A thick plastic bag is inserted into the canister with new oil through the neck. A transparent hose is mounted into it, through which the “working off” will come out of the automatic transmission. The result should be a sealed system.

The principle of changing the oil in an automatic transmission using a plastic bag is quite simple.

When the engine starts, the waste will begin to flow into the package located in a canister with clean oil.
Having quickly filled the container, clean transmission fluid under pressure will begin to be forced out through the lower pipe, heading into the automatic transmission. It is important to ensure that there is no leakage or oil leakage.
When clean oil begins to flow into the bag through the hose, the replacement process should be stopped.

Changing the oil in an automatic transmission with your own hands will allow the car enthusiast not only to save some money by refusing to visit a service station. This work will force you to use your resourcefulness and ingenuity to the fullest. There may be other solutions to this machine maintenance problem. And the reward for diligence and intelligence will be a feeling of satisfaction from the work done.