Sang Yong whose company is which country. History of SsangYong. SsangYong in Russia

Changing the oil in the box of the Opel Astra G, H and J is not a difficult, but extremely important operation. Neglecting it can lead to high costs for repairing damaged components and parts.

[Hide]

Replacement frequency

Opel Astra H and J passenger cars are equipped with the same design manual transmission model F23 (there are options with 5 or 6 speeds) or robotic F17 Easytronic. The manufacturer does not provide for changing the oil in the Opel Astra H and J gearbox.

In other words, the oil filled at the factory is designed to last for the entire life of the vehicle. But many owners and auto mechanics recommend changing the working fluid in a manual transmission quite often - every 30 thousand kilometers. It is advisable to check the oil level every 15 thousand km.

Astra cars can be equipped with an automatic transmission, in which it is also recommended to change the oil. Manufacturer installed The automatic transmission oil change interval is 60 thousand km. But due to difficult climatic operating conditions, it is better to reduce the interval to 30–40 thousand km. The final decision on when to change the oil is made by the owner of the car.

Oil selection

From factory to box Opel Astra H poured synthetic gear oil with API GL4 and SAE 80W-90 standard. When replacing, the oil type can be left unchanged. But if the machine is regularly and for a long time operated in conditions low temperatures(from minus 30 degrees and below), the Opel plant recommends pouring a more frost-resistant liquid into the gearbox crankcase according to API GL4 and SAE 75W-90 standards.

It must be remembered that it is necessary to pour into the automatic transmission special liquid for automatic transmission with Dextron VI approval. The fluid manufacturer can be any, although it is better to give preference to the original General Motors product (part number 19 40 184).

Level measurement and topping up

Checking the oil level in the gearbox can be carried out during the next maintenance or simply when servicing the machine.

To perform these works you will need rags, a wrench and socket heads with sizes of 13, 17 and 19 mm. You can add oil to the box using a special pressure syringe for filling transmission fluids. It should be remembered that it is necessary to add a lubricant with exactly the same characteristics and from the same manufacturer as that available in the box. When these data are unknown, you need to carry out complete replacement oils The general procedure is outlined below.

  1. The car must be driven onto an overpass, a lift or into a viewing hole in the garage.
  2. On the side of the gearbox there is a special inspection hole, closed with a screw plug with a wrench size of 13 mm. Sometimes there may be small oil leaks around the plug; this is not a sign of a malfunction. In addition, the presence or absence of leaks does not indicate a low or normal oil level.
  3. It is necessary to wipe the box housing around the plug with a rag, and then unscrew it. Through the hole, you can check the oil level and the degree of contamination with your finger. If the oil level is very low, a control sample can be removed with a clean screwdriver or any other object. Under no circumstances should the oil contain metal shavings or dirt. There is a magnet installed on the plug, so the degree of oil contamination can also be judged by the presence of chips on it. If such impurities are present, the oil must be replaced. The normal level is along the lower edge of the inspection hole. At this level, the oil volume in the crankcase is about 2 liters.
  4. If the level is low, add oil. To do this, you need to unscrew the ventilation plug with a 17 mm wrench size located on the top of the gear shift mechanism. It is recommended to check the condition of the ventilation duct and, if necessary, flush it. When performing this operation, it is important not to lose the protective rubber cap of the breather. Operating the car without it is prohibited, since various dirt will get inside the box.
  5. You can get to the ventilation plug only after removing the battery along with the mounting pad; the plug itself has a wrench size of 19 mm.
  6. Topping up should be carried out until the oil begins to flow out through the control hole. After this, you need to quickly screw the screw plug back in and tighten it tightly.

Location of the inspection hole on the side of the gearbox Magnetic inspection hole plug Ventilation plug with protective cap

How to change the oil in a box with your own hands?

Changing the oil in the Opel Astra N gearbox is complicated by the absence of a drain plug in the lower crankcase cover.

Preparing for replacement

To speed up the operation, it is necessary to warm up the engine and gearbox. To perform the work, due to the need to dismantle the box pallet, you will need a few more tools:

  • wide flat container with a volume of at least 3 liters for collecting old oil;
  • a set of wrenches and socket heads;
  • rags and protective gloves;
  • refill syringe;
  • differential oil pan gasket;
  • auxiliary tools - thin hose, funnel;
  • fresh oil (volume of at least 2 liters).

How to change in manual transmission

The machine is installed on a lift, inspection hole or overpass. The sequence of actions when changing the oil in a manual transmission Astra z16xer is as follows.

  1. Unscrew the ventilation plug.
  2. Remove the engine protection, if equipped.
  3. Loosen the 10 differential housing mounting bolts. In this case, it is necessary to keep a container nearby to collect the oil.
  4. After draining most of the oil, unscrew the bolts completely and remove the pan.
  5. Remove the old gasket and wait for the oil to completely drain from the gearbox components.
  6. Install a new gasket, oil pan and tighten the bolts.
  7. Remove the battery together with the platform and unscrew the crankcase ventilation plug.
  8. Insert a hose with a funnel into the hole and fill in 1.5 liters of fresh oil.
  9. Unscrew the control plug and add oil until it appears in the hole.
  10. Close the inspection plug and install all the removed parts.

Control plug The differential pan has been removed and the oil has been drained. Ventilation plug on the gear selector mechanism, battery with platform removed

A video demonstrating the process of changing the oil in a manual transmission (by Andrew K).

Stages of work in automatic transmission

On the oil pan of automatic transmissions there is drain hole, closed with a screw plug of various designs. So, on Astra Turbo GTC cars with a 1.4-liter engine, the plug has a wrench size of 11 mm, and on the Opel Astra H version with a 1.8-liter Z18XER engine, the plug has a hole for an internal hexagon number 10. A disposable O-ring 07 05 487 is placed under all plugs.

The screw plug in the tray of the Z18XER box is clearly visible, under which there is an O-ring The Astra Turbo GTC gearbox housing has a different screw plug design

All work should be carried out with the machine raised on a lift with the gearbox warmed up. A short list of work on changing the fluid in an automatic transmission yourself is slightly different from the algorithm for changing the oil in a manual transmission and looks like this.

  1. It is necessary to unscrew the drain plug and place a previously prepared container with a volume of at least 6 liters. The oil drains in approximately 10–15 minutes.
  2. After draining the oil, replace the plug and tighten it to a torque of 12 N/m.
  3. Unscrew the screw plug of the inspection hole located on the side of the box next to the left wheel drive.
  4. To access the ventilation plug, the battery and pad do not need to be removed.
  5. Pour liquid into the rubber crankcase ventilation tube until a leak appears from the control hole; usually the box contains about 5 liters of liquid.
  6. Reinstall all the removed parts and run the fluid through the box. To do this, you need to start the engine and switch the box through all operating modes on the spot; a delay of several seconds should be given in each mode.
  7. Warm up the box in neutral gear for 3-4 minutes.
  8. Finally warm up the box while driving the car for about half an hour.
  9. Unscrew the control plug and allow excess fluid to drain. An important point is that the plug must be unscrewed while the engine is running. If the level is insufficient, top up.

It should be noted that with such a replacement, all the old oil is not drained. For a more complete change, you can repeat this procedure several times, with an interval of 500–1000 km. The automatic transmission housing contains oil filter, but replacing it is a very complex and expensive procedure and is carried out only if the box is repaired.


Oxidation and others chemical reactions additives and base oils under high temperature. For an experienced mechanic who specializes in gearboxes, visual access to shafts and gears allows him to fairly accurately assess the condition of the working units.

OPEL CORSA D isitronic robot bleeding the clutch of the Opel Corsa robot. Opel Corsa In Changing the oil...

As a rule, the fluid is replaced every thousand kilometers.

If you switch to automatic mode, the winter driving program is suspended. Compliance with agreed repair deadlines.

To avoid them tearing off the linings, it is recommended: Operating modes of the Opel robotic gearbox: The box independently switches the car to a higher or downshift depending on the position of the accelerator pedal, as well as the temperature of the catalytic converter. The problem lies in the following: At increased speeds, it automatically switches to a lower or higher gear.

Opel Astra H 1.6 manual transmission oil change

Blocks errors that occur, that is, it will not allow you to switch to a second speed at an increased speed. Winter - similar to an automatic transmission, but movement begins in second gear. Sports - found on some models, very rarely. It is believed that during rapid acceleration it shifts gears in accelerated mode. Kick-down - allows the box, when full press accelerator pedal to the floor, quickly downshift the vehicle to ensure faster acceleration.

Gear selection lever In isitronics, the role of the gear selector is played by an automated lever connected to the control unit via an interface. You can simplify your task and purchase steering column for automatic gear shifting.

In this case, the signal is transmitted via the bus from the steering column to the gearbox control unit. Switching gears in isitronics is always accompanied by a maximum shift of the selector, all the way. After this, the selector automatically returns to the middle position. Therefore, you should pay close attention to the gear engaged indicator.

Answers (1)

Removing scratches on a car body without painting. Now you can remove any scratch from the body of your car in just 5 seconds.

The car automatically goes into neutral after starting, which is why the starting procedure may be delayed. Easytronic ensures fuel consumption Pulling off In order to put a car with easytronic into action, you need to hold down the main brake pedal and switch the box to automatic mode.

If winter - second gear A2.

Create an account or sign in to comment

After releasing the brake pedal, the car should start moving. Moving from the vehicle's seat is possible, but only if the accelerator pedal is immediately pressed after turning on the speed. Launch OPEL engine Further gear shifting is carried out automatically, depending on the number of engine revolutions.

If the manual mode is set, the gears are switched manually. If the engine speed is low, the robotic control unit automatically switches to manual mode in a lower gear.

Measuring the level and adding oil

This helps avoid engine stalling. The oil in a manual transmission performs the following functions: To understand why you need to change the oil in robotic box gears, let's consider the processes that occur in it with increasing mileage. Despite the relatively high stability properties of the oil base and additive package, any oil begins to age over time. This is manifested in a partial change in its chemical composition and, accordingly, working properties.

Oxidation and other chemical reactions of additives and oil base under the influence of high temperature. This happens mainly when the load on the box increases significantly, or if the gears have noticeable wear and do not engage correctly.

Intense friction occurs at the contact patch of the teeth. In this case, the surface can heat up to several hundred degrees, which causes thermal destruction of the oil located at the point of contact. Filling the lubricant with gear wear products.

The process of wear and tear is always present. Oil only reduces the wear rate. Small metal particles gradually fill the oil base, reducing its lubricating properties and adding abrasive properties. The manufacturer installs a magnet on the oil pan, which is designed to catch metal particles that have peeled off from the working surfaces.

However, this magnet cannot catch and hold on its surface the entire volume of metal chips released, and some of it continues to circulate between the gears, increasing the rate of wear. The manufacturer indicates that the oil is designed for the entire service life of the manual transmission.

This is one of those few cases where the manufacturer's recommendations are more harmful than useful. This is most likely caused by marketing decisions. The vast majority of experienced mechanics are inclined to believe that the oil in a manual transmission should be changed.

The period between replacements is approximately thousand kilometers. At this mark, there is a slight decrease in the protective and lubricating properties and quite abundant clogging of the oil with wear products.

To replace, you will need 1.6 liters of oil and a gasket under the pan. The original gear oil for the robotic gearboxes of the car in question is sold in 1 liter containers. Therefore, in any case, you will have to purchase 2 cans.

The procedure for changing the oil in a robotic Opel box Astra provides for the dismantling of the pallet, since drain plug not available on this model. This allows you to inspect the condition of the working mechanisms of the manual transmission. For an experienced mechanic who specializes in gearboxes, visual access to shafts and gears allows him to fairly accurately assess the condition of the working units. When replacing, the contents of the used oil and the presence of chips on the magnet are examined.

This is also important information, which can warn the driver about gearbox malfunctions. If any defects were discovered during the replacement process, the driver will be informed about this. Robot boxes can be repaired quite easily and relatively painlessly in the rudimentary stages of malfunctions.

Hi all! In this article we will tell you how to change the oil in an Opel Astra manual transmission. This procedure is very simple, but if you are doing it for the first time, it is better to first read our manual. So, let's go.

Oil change intervals in manual transmission Opel Astra J (H)

The Opel Astra J or H is equipped with an F17 manual transmission, which is maintenance-free. In other words, the oil in this box does not change and is designed for the entire service life of the car. That's what the maintenance regulations say. And you can verify this by simply looking at the box itself, which doesn’t even have a drain plug. However, as experience shows, the oil in any gearbox ages and loses its properties over time. This leads to premature wear of manual transmission parts, which over time threatens to either replace the entire unit or its major repairs. To avoid all this, it is better to go against the manufacturer's instructions and official dealers replace manual transmission fluid. We will describe how this is done below.

What do you need to change the oil in the Opel Astra H (J) manual transmission yourself?

First you need to decide on the place where the work will be done. A good option There will be a garage equipped with a pit. Everything can be done on an overpass. Or, at worst, you can use a jack. The last option is not the most convenient, but it can be done if you are not afraid of difficulties. We did all the work in the pit.

Secondly, we will need devices for filling and draining oil from the box. To fill, we used a simple funnel and a thin hose, one end of which was inserted into the fill hole, and the funnel was simply inserted into the other. It turned out to be a simple funnel extension. Everything is for convenience. To drain the waste we will need any convenient container. For example, a basin, a cut-off canister, a PET bottle of anti-freeze or water. Look in the garage. I think there will always be something.

Thirdly, we will need tools. This is a 10" socket with a ratchet and a 19" open-end wrench. You will also need a flathead screwdriver.

Fourthly, we will need new gearbox oil and a differential pan gasket. As for the oil, you will need 1.6 l transmission fluid for manual transmission GM 80W article number 1940182.

Do-it-yourself oil change in manual transmission Opel Astra

1. We drive the car into the pit, warm up the engine and turn it off. We get down under the car. If the car has engine protection installed, then we dismantle it. Then unscrew the 10 bolts securing the differential pan. Keep a waste container handy as oil will spill out.

2. When the oil has stopped flowing, remove the old gasket and install a new one in its place. We put all the bolts in place and tighten them.

3. Open the hood and disconnect the battery. Additionally, you will need to remove the battery pad.

4. We will pour oil into the box through the breather. But to do this, you will need to unscrew it. We take a 19" wrench and unscrew the breather. Insert a hose into the hole formed, insert a funnel into it and fill in approximately 1.5-1.6 liters of transmission oil.

5. Check the oil level using the control hole. Turn the steering wheel all the way to the left and find the control plug. We turn it inside out. At this moment, oil should flow. When the oil has stopped flowing, screw the control plug back into place.

6. Reinstall the breather and battery pad. We connect the battery.

That's all. Changing the oil in the manual transmission of the Opel Astra is considered complete. As a result, you will extend the life of the manual transmission, and also receive a pleasant bonus in the form of reduced operating noise. That's all, thanks for your attention. We recommend that you read our other articles.

We invite all owners of Opel cars to our service center for maintenance and repair of Opel robotic gearboxes MTA Easytronic, which are used on following models: Corsa C, Corsa D, Vectra C, Astra H, Zafira B and Meriva. Diagnostics, replacement of parts and assemblies with subsequent adaptation actuators robotic gearboxes, bleeding the clutch hydraulic drive and other procedures will be performed in the shortest possible time with high quality and with a guarantee from 6 months to 2 years.

Our technicians have accumulated impressive experience that allows them to cope with manual transmission repairs of any complexity. Statistics of calls to our service show that most often owners of Opel cars are concerned about the following symptoms:

  • * the appearance of slipping, jerking or jolting when changing gears;
  • * spontaneous switching of the box in emergency mode;
  • * sudden loss of speed by the car;
  • * the appearance of extraneous sounds when changing gears;
  • * abrupt departure at the beginning of the movement.

Special dealer equipment allows you to diagnose the problem with high accuracy. If your robotic transmission requires preventative maintenance or urgent repairs robot for Opel,

Our addresses are in the Contacts section on the right->>>>>

Whenever emergency situations you can use the services of a tow truck for FREE.

Diagnostics of the Opel robot

To determine the type of malfunction and assess the degree of difficulty of repairing the Opel Zafira, Corsa, Vectra robot, it is necessary to carry out diagnostics. For this, a special Tech2 scanner and corresponding software are used. Using the received error codes, the technician decides to carry out further repairs. Diagnostics of the Opel Astra, Meriva, Vectra robot also includes:

  • Visual inspection of the box, during which mechanical damage and leaks of working fluids are detected;
  • Checking the oil level;
  • Testing the transmission in various modes;
  • Analysis of the operation of all nodes.

It is important quality control of oil in box If it is cloudy and dark brown in color, it should be replaced. The use of a magnet allows, without disassembling the transmission, to assess the degree of wear of its parts by the presence of small metal particles in the oil. The effectiveness of the upcoming repair largely depends on the quality of the diagnostics; our specialists always successfully cope with this task.

Our telephone numbers in Moscow

7 915 222 07 31 and +7 965 222 56 72

Replacing the clutch on an Opel robot

The clutch is one of the most vulnerable components of the MTA; replacing it requires dismantling the robotic box. The technician must evaluate the condition of the flywheel; if there is wear on the surface, signs of wear or overheating, it should be replaced. Presence of fogging or signs of oil leakage from the engine, which can be detected by flywheel removed, indicates the need to replace the crankshaft rear oil seal.

When replacing the clutch on an Opel, it is also advisable to update the following parts:

  • * hydraulic release bearing, since its resource is comparable to the service life of the clutch;
  • * drive seals, over time they lose elasticity, which causes oil leakage from the transmission.

It is necessary to replace the hydraulic fluid and pump the hydraulic drive of the clutch assembly. After assembly and installation, all errors in the memory of the electronic control unit are cleared. With the help diagnostic equipment All parameters of the gearbox operation are tested and their compliance with the values ​​​​set by the manufacturer is checked. Then the clutch of the Opel robot is adapted to adjust the gripping point. The procedure ends with a test drive in the car in various driving modes.

Adaptation of robotic gearbox for Opel

Scheduled maintenance of the gearbox on an Opel consists of replacing the clutch hydraulic fluid and adapting the robot, i.e. grip points every 15,000 km. This allows extend transmission life and provide the driver with the required comfort level when driving a car. After service or repair, a scanner is connected to the control unit of the robot box, which, thanks to special software, performs the necessary adjustment of the transmission operating parameters. The main criterion for successful adaptation is a smooth and confident start of the car on a horizontal surface in the joystick position “A” or “R” without pressing the gas pedal.

Opel robot malfunctions

Isitronika is based on traditional manual transmission, supplemented by a clutch servo drive and an electromechanical gear shift actuator. Robotic transmission has two modes: manual (M) and automatic (A). It provides fuel savings compared to automatic transmissions and ensures smooth and timely gear shifting (which is not always possible for novice drivers in manual cars).

Long-term operation, untimely maintenance, aggressive driving style lead to mechanical breakdowns of Easytronic. The appearance of a characteristic extraneous sound in the Opel Vectra or Astra box when switching transmission indicates a malfunction release bearing, which can be eliminated by replacing it.

Fans of dynamic acceleration from a standstill in cars Opel Corsa and Zafira risk facing premature wear of friction pads and slipping of the clutch. This malfunction is evidenced by the fact that when releasing the brake without pressing the accelerator pedal the car does not move. The clutch and gaskets will have to be replaced.

Another group of breakdowns is associated with malfunctions or failure electronic unit control unit (ECU). Robot diagnostics will help determine the nature of the malfunction. Problems in the operation of the box may be caused by failures of one of the numerous sensors responsible for collecting necessary information to control the operation of the unit.

Timely repairs extend service life

Some useful tips owners of Opel cars with a robotic gearbox from our service specialists:

  • In city traffic jams, use the "sport" button or switch to manual mode;
  • Move the joystick to the “N” position if you stand at a long traffic light signal (more than 5-10 seconds);
  • Try not to slip - this is dangerous for both the clutch and the control unit;
  • To give the car acceleration, use smooth movements, then the shifts will be barely noticeable, and the degree of wear on the clutch parts will decrease;
  • Do not leave the car in gear on a slope.

And most importantly, carry out timely maintenance of the gearbox, it does not take much time and is inexpensive. The procedure includes replacement brake fluid V hydraulic drive clutch followed by adaptation of the clutch engagement point.

In order to extend the service life Opel car with MTA Easytronic and perform quality maintenance,

contact us by phone +7 915 222 07 31 or +7 965 222 56 72

Our workshops, equipped with the most modern equipment, are waiting for you!

Today, there is sometimes confusion among amateur drivers. All gearboxes, except simple mechanics, are classified as automatic. This applies to classic automatic machines, CVTs and robots. However robotic gearbox rather belongs to the category of mechanical, automatic transmissions.

Our services

In our car services, work is carried out on maintenance and repair of Opel Astra cars. One of the most popular operations is changing the oil in a manual transmission (automatic transmission).

In addition to oil changes, we also perform the following work:

Over the years of practice, we have developed several principles that we strictly adhere to.

  1. Use of professional tools and specialized equipment in work.
  2. Permission to work for professionals. In our car services, we entrust responsible operations only to those craftsmen who have experience in a particular field.
  3. Compliance with agreed repair deadlines. We try to give the deadlines for completing the work as accurately as possible, which allows the client to plan his time.
  4. Using quality consumables and spare parts. Our supply service works only with trusted suppliers of spare parts and materials.
  5. Fair pricing. Before starting work, a cost estimate is created, which details the work performed, the materials used and the cost of each individual repair item.

Thanks to our professional approach to car repair and maintenance, many car owners today choose us.

Why does an Opel Astra need an oil change in manual and automatic transmissions?

IN automatic transmission gears working fluid performs a more complex function. In addition to lubrication and protection, it is also an energy carrier. It is the energy transfer function that has the greatest impact on the oil. In manual versions of the gearbox, all torque is transmitted through gears.

The oil in a manual transmission performs the following functions:


To understand why you need to change the oil in a robotic gearbox, let's consider the processes that occur in it as the mileage increases.

  1. Oil aging. Despite the relatively high stability of the properties of the oil base and additive package, any oil begins to age over time. This is manifested in a partial change in its chemical composition and, accordingly, working properties.
  2. Oxidation and other chemical reactions of additives and oil base under the influence of high temperature. This happens mainly when the load on the box increases significantly, or if the gears have noticeable wear and do not engage correctly. Intense friction occurs at the contact patch of the teeth. In this case, the surface can heat up to several hundred degrees, which causes thermal destruction of the oil located at the point of contact.
  3. Filling the lubricant with gear wear products. The process of wear and tear is always present. Oil only reduces the wear rate. Small metal particles gradually fill the oil base, reducing its lubricating properties and adding abrasive properties.

REFERENCE: The manufacturer installs a magnet on the oil pan, which is designed to catch metal particles that have peeled off from the working surfaces. However, this magnet cannot catch and hold on its surface the entire volume of metal chips released, and some of it continues to circulate between the gears, increasing the rate of wear.

The manufacturer indicates that the oil is designed for the entire service life of the manual transmission. This is one of those few cases where the manufacturer's recommendations are more harmful than useful. This is most likely caused by marketing decisions. The vast majority of experienced mechanics are inclined to believe that the oil in a manual transmission should be changed. The period between replacements is approximately 100 thousand kilometers. At this mark, there is a slight decrease in the protective and lubricating properties and quite abundant clogging of the oil with wear products.

Opel Astra robot box: oil change

In the robotic box of the Opel Astra, changing the oil is a little more complicated than in conventional mechanics. To replace, you will need 1.6 liters of oil and a gasket under the pan.

REFERENCE: The original gear oil for the robotic gearboxes of the car in question is sold in 1 liter containers. Therefore, in any case, you will have to purchase 2 cans.

The procedure for changing the oil in an Opel Astra robotic gearbox involves dismantling the pan, since there is no drain plug on this model. This allows you to inspect the condition of the working mechanisms of the manual transmission. For an experienced mechanic who specializes in gearboxes, visual access to shafts and gears allows him to fairly accurately assess the condition of the working units.

When replacing, the contents of the used oil and the presence of chips on the magnet are examined. This is also important information that can warn the driver about gearbox malfunctions.

If any defects were discovered during the replacement process, the driver will be informed about this. Robot boxes can be repaired quite easily and relatively painlessly in the rudimentary stages of malfunctions. If you miss the moment and bring the manual transmission to its limit, then repair often becomes impossible. Only replacing the box with a new one will help. And this is an expensive and time-consuming process.

Cost of changing Opel Astra gearbox oil

Traditionally, the final cost of replacement consists of the labor expended and the price of materials. In the case of changing oil in a manual transmission, the following materials are used:

  • transmission oil;
  • pan gasket;
  • sealant (if necessary depending on the condition of the contacting surfaces).

Sometimes drivers decide to save on replacement and purchase less expensive, non-original oil. Due to this, the final cost will be lower, but subsequently such an approach may affect the resource of the manual transmission.

IMPORTANT! Sometimes car owners purchase oil with reduced viscosity. Allegedly, this oil allows you to save fuel in winter by reducing the internal resistance in the box. In winter, this is true. However, in summer, oil with low viscosity becomes too liquid and provides less protection and lubrication of rubbing surfaces, which accelerates wear and reduces the service life of the gearbox. So such a decision is very doubtful from the point of view of economy and common sense.

koreada.ru - About cars - Information portal