How much oil is poured into the box. What kind of oil to fill in a manual gearbox? Types of oil that are poured into the gearbox

The service life of the transmission depends on the quality of the transmission oil. If it physical properties or the level (quantity) does not correspond to the required parameters, the gearbox parts begin to wear out intensively. Add oil to the VAZ 2107 box or you can change it yourself. This operation does not require high qualifications and special tools. You just need to know what kind of oil can be poured into the “seven” checkpoint, when and how to change it, it must be changed or topped up.

How to check the oil level in the gearbox VAZ 2107

Checking the oil level in the box is done like this:

• install the car on a viewing hole;
• with a rag and a metal brush, clean the cork and the surface of the box near the oil filler hole;
• unscrew the side plug of the filler hole.

The oil level should reach its lower edge. At the same time, you can also check the condition of the oil.

If we talk about how much oil is in the VAZ 2107 box, you need to understand what modification of the box we are talking about. IN four-speed box pour 1.35 liters of oil, and in a five-speed - 1.6 liters.

When it is necessary to change or add oil in the “seven” box

You need to add oil only when its level is below normal. This can be done with a special syringe, after unscrewing the oil filler plug.
An oil change in a VAZ 2107 box is performed in such cases:

• After running 60 thousand kilometers. The manufacturer recommends changing transmission oil exactly at such an interval, but in fact it is better to do it a little more often - about once every 50 thousand kilometers.
• When extraneous noise. Oil loses its properties over time, moisture and metal particles get into it, which accelerate the wear of parts. Therefore, the first thing to do when a hum or rattle appears is to check and change the oil.
• With a sharp change in color (blackening). If the oil in the gearbox is black, it must be changed urgently, regardless of the current mileage of the car.
• When buying a used car. If you don't know exactly when the previous owner last changed the gear oil, do so immediately after purchase.

Delay in changing the oil will quickly lead to damage to the gearbox.

What kind of oil to fill in a VAZ 2107 box

Regardless of the modification of the gearbox (five- or four-speed), only special oil, the properties of which correspond to the operating conditions of the machine.
The manufacturer recommends two groups of oils for use:

• GL-4 - oil with high content additive designed for high speed manual transmissions with low torque or low speed manual transmissions with high torque.
• GL-5 is an oil designed for hypoid gears where the gears rotate at an angle to each other. It has proven itself in checkpoints operated in harsh conditions.

In the “seven” box, synthetic or semi-synthetic oils the following viscosity grades:

• SAE80W85 - oil designed for operation in the temperature range from -35 to +35 Co.
• SAE75W90- multigrade oil, which can operate in the temperature range from -40 to +35 Co.
• SAE75W85 is a multigrade oil operating in the range from -40 to +45 Co.

The last two types of oil are best adapted to Russian weather conditions.

• What you need to change the oil in the gearbox VAZ 2107

To work, you need to prepare:

• hex key;
• rags;
• wrench;
• metal brush;
• processing capacity;
• oil syringe;
• new oil.

How to change gear oil in a VAZ 2107 gearbox

To change the oil in the “seven” box, you must perform the following steps:

Important: Avoid getting oil on the ground. It contains chemicals that are harmful to environment.

• Wipe with a rag drain plug.
• Screw in the drain plug with a hex wrench.

Attention: if there are sawdust in the “working out”, the checkpoint needs to be repaired!

Tip: If you don't have an oil syringe, you can use a funnel with a long, flexible tube attached to it. The latter must be brought in from above on the left side of the engine and inserted into the fill hole. Thus, it is possible to pour oil into the gearbox without using a syringe.

Now you know how to pour oil into a VAZ 2107 box and you can independently check its condition. Timely replacement or adding oil will provide long service such an expensive unit as a gearbox.

If the level is allowed to decrease lubricating fluid in the manual gearbox of a VAZ 2109 car and its modifications, there may be an “oil starvation” of the gearbox components and, as a result, a breakdown of the unit. Therefore, the car owner needs to know how much.

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Replacement frequency

The instruction manual for a VAZ 2109 car and its modifications recommends changing the lubricant in the gearbox of the car after 75 thousand kilometers. In the case when the annual mileage is insignificant, such a procedure is carried out after five years of operation of the machine.

Some drivers change the lubricant after 12 months of operation, this does not contradict the recommendations of the car manufacturer, but it is not economically feasible. Since modern consumable liquids do not lose their qualities over such a period. But sometimes it may be necessary to change the oil unscheduled if it leaks for some reason, and the type of lubricant is unknown.

Oil selection

The first copies of the VAZ 2109 had a carburetor in the power system and came out with a gearbox, which was a four-speed one. The recommended motor lubricant, which ensured the operability of the unit as in summer time, as well as in winter. After replacing the main hypoid gear with helical gear parts, an improved oil was required. As such, lubricants TM-1 and TM-2 have proven themselves well. In addition, Lukoil TM-5 transmission fluid was developed and introduced into production.

Experts advise using lubricants in VAZ 2109 transmissions and their modifications that correspond to API standards GL-4. If the owner does not know what kind of lubricant is in the box of his "Nine", it is best to use lubricating fluid API class GL-4. TM-4 or TM-5-9P oils also meet the corresponding requirements. Unfortunately, the latter type of lubricating fluid is problematic to find on sale, so it can be successfully replaced with TM-4-12 oil. It is allowed to use fluids that correspond to the class 75W-90, 80W-85, 80W-90 of any manufacturer, but provided that they have high performance quality.

Level control and required volume

Repair of a failed VAZ 2109 gearbox is not a cheap operation, so the level of the lubricant should be checked regularly. Experts recommend doing this every 5 thousand kilometers or once a year. If a low oil volume is detected, it should be replenished. This will ensure long term operation of the box.

To check the oil level in the gearbox, you need to use viewing hole or flyover. In this case, the machine should be positioned so that Right side rose somewhat. This can be easily done by placing a board, brick, or other suitable object under the wheel. After that, you can begin to check the lubrication level at the Nine checkpoint.

serviced

This word drivers call cars with five-speed gearboxes gears that have a dipstick located in the engine compartment next to battery. They control the level of lubrication. Before removing the probe, the area around it is thoroughly wiped of dirt and dust to prevent it from entering the crankcase. After that, the probe is removed and wiped with a rag, then it is installed in its place. Now the meter needs to be taken out again and look at the trace of the transmission fluid. It must be between the two labels, which are designated as MIN and MAX. If so, you can continue to use the machine.

Checking the lubrication level with a dipstick in the VAZ 2109 gearbox

The operating instructions for this car require that at least 3.3 liters of fluid be poured into the transmission mechanism. Experts recommend slightly increasing this displacement of lubricant to 4. They explain this by the fact that the details of the fifth gear are separate from the main mechanism and periodically “oil hunger” may occur for them.

Unattended

This name is given to the checkpoints of the first issues of the VAZ 2109, which were not equipped with fifth gear. To control the level of lubricating fluid in such cars, a filler hole is used. To check the amount of grease, with a 17 wrench, slightly unscrew the filler plug to bleed air pressure. If grease appears from the hole, it means that its level is normal. Otherwise, add lubricant. In addition, it is possible to check whether there is enough lubricant in the unit through the hole for installing the speedometer drive. The liquid level is clearly visible in it, and access under the car is not required.

According to the instructions, the gearbox of the four-speed VAZ 2109 includes 3 liters of oil. But it is also desirable to purchase lubricant in the amount of 4 liters. A small amount of liquid may be needed to top up the gearbox housing during operation of the machine.

Topping up oil

How much oil is poured into the VAZ 2109 box is already known, you can start topping up. The process of adding lubricant to maintenance-free and serviced boxes is different, this is due to design features these nodes. It is important to consider that only the type of lubricant that is used in this gearbox should be added.

In four-stage units, grease is poured through the filler hole, which can only be reached from below engine compartment. The procedure is performed with a syringe for liquid oils. A flexible hose is put on his spout and fixed accessible way on the syringe. After that, the device is inserted into the filler hole and grease is added. It is necessary to pour oil into the box to the desired level.

For five steps, this process is performed differently. Add required amount lubricating fluid can be through the dipstick hole. The place of its installation is thoroughly wiped with a rag from dirt, then the probe is removed from the socket. It is convenient to top up with a syringe, a large-volume rubber bulb or a funnel. The device is installed in the measuring hole and the required amount of oil is added.

DIY oil change

You can perform this operation yourself, since there are no particular difficulties when replacing the lubricant, special equipment or no tools needed.

Instructions on how to change the lubricant in a VAZ gearbox with your own hands were shared by the VAZ 2101-2107 REPAIR AND MAINTENANCE channel.

Tools and materials

To replace, you need to prepare the following:

1. New grease for filling in the gearbox. The volume of liquid depends on the design of the mechanism.
2. An empty container for collecting waste fluid, the capacity of which should be slightly more than 3 liters.
3. Rags.
4. Ring spanners for 12 and 17.
5. A syringe with a hose for a gearbox without a dipstick, a funnel or a rubber bulb for boxes with a dipstick.

Before starting work, it is necessary to warm up the lubricant in the transmission, for this it is enough to drive 10 km.

Drain the oil

Before filling in a new lubricating fluid, it is necessary to drain the old oil that has exhausted its resource. This process takes no more than 15 minutes.

The procedure will be like this:

1. The machine is installed on a lift or viewing hole.
2. Wipe the filler and drain plugs with a rag.
3. Using a 17 key, slightly unscrew the filler cap to bleed air from the gearbox.
4. An empty container is placed under the drain hole and the plug is unscrewed.
5. The mining is drained, at the end of the outflow of liquid, the cover is installed in place.

While the waste fluid is draining, inspect the drain plug for metal chips. If it is found, flush the gearbox housing.

Draining oil from the gearbox VAZ 2109

Filling in new oil

The algorithm for filling oil into serviced and unattended gearboxes VAZ 2109 is the same as when adding oil.

Filling with fresh oil

How else can you fill in the lubricant

In order to fill in the required amount of fresh grease, you can resort to another method.

This operation is performed through the installation location of the speedometer drive:

1. Thoroughly clean the place near the speedometer drive from various contaminants.
2. Then unscrew the nut securing the speedometer cable.
3. The speedometer drive is taken aside and covered from possible contamination.
4. Fill the lubricating fluid with a rubber pear big size- the larger it is, the faster the addition process will go.

The required level of gear oil in the box is determined by the appearance of grease from the filler hole. As soon as you see a stream of liquid, the filler plug must be wrapped.

In the video from the Home Master channel, you can learn about the procedure for changing the oil in the VAZ 21099 gearbox, which is similar to the process in the VAZ 2109.

Issue price

If it is not possible to independently replace the transmission lubricant in the Nine, the owners turn to service centers or service stations. The cost of such an operation is determined by several factors and will depend on the type of lubricant, the amount of fluid, as well as the category service center. The price of 4 liters of gear oil for a VAZ 2109 is approximately 1300 rubles. The fee for the work performed can vary between 300-500 rubles.

Consequences of late replacement

If the frequency of changing the lubricant in the VAZ 2109 gearbox is not observed, the following problems may occur:

1. When it comes" oil starvation» in the unit, the wear of gears, synchronizers and bearings in the box is accelerated.
2. Exceeding the period of use of the lubricant leads to a deterioration in its technical characteristics.
3. There are changes in the chemical composition of the oil, which inevitably affects the quality of lubrication of rubbing elements.
4. As a result, the failure of parts is accelerated, their wear products in the form of metal chips can lead to jamming of the gearbox.
5. A low oil level impairs the cooling of the gearbox mechanism while the vehicle is in motion.

Photo gallery

Oil Lukoil TM-4 Oil LIQUI MOLY 75W-90 ZIC oil G-FF

Changing the oil in the gearbox of the car "VAZ-21099" directly affects technical condition vehicle, quality and service life of parts, safety and driving comfort. contributes to the smooth operation of the mechanism, reduces the friction force of parts against each other and acts as a heat exchanger, preventing the gearbox from failing due to overheating.

The gearbox oil should be changed regularly.

Theoretical information

Before the replacement process, any car owner is interested in the question - how many liters of oil are in the box of the VAZ-21099 car. It follows from the technical factory documentation that there are 3.3 liters in a 5-speed gearbox, and exactly 3 liters in a 4-speed gearbox.

Oil Change Intervals

Based on the factory documentation, you need to change the oil every 70 - 80 thousand kilometers, but at least once every 4 - 5 years with average annual mileage at 15 - 16 thousand km. In reality, the situation is somewhat different - a serious impact on replacement intervals is exerted by weather, state of the environment, operating and storage (parking) conditions. According to experts, every 35 - 40 thousand km., At the same time, in the interval after 30 thousand km. the first signs of violations are already possible:

• heavy and inaccurate gear shifting;
• extraneous noise;
• vibrations.

If the above signs began to appear in your car recently, we strongly advise you to change the oil as soon as possible - this will reduce the wear of gearbox parts and compensate for possible losses from breakdowns.

Which oil to choose

• Volnez TM4” (80W-90; GL-4);
• Omskoil trans P (80W-85; GL-4/5);
• Rexol T (80W-85; GL-4).

Among experienced motorists, the choice fell on more reliable, in their opinion, manufacturers:

• Mobil;
• Castrol;

At primary replacement at the VAZ-21099 checkpoint and the lack of use experience, it is worth dwelling on the opinions of acquaintances, reviews of motorists on the Internet and advice from reputable publications, which as a result will allow you to make the right and informed choice. We advise you to add oil to a Zic or Castrol gearbox.

Level control and required volume

During the operation of the car, it is necessary to constantly check the gearbox using a probe. Two control marks (dashes) are applied to the probe, indicating the minimum and maximum level oils in the gearbox. The minimum mark indicates the need for topping up (usually the operation is performed every 4 - 5 thousand km.), And the maximum indicates the absence of reasons for excitement.

The control is carried out as follows:

1. In the checkpoint, the dipstick is unscrewed or removed (the hole from it is usually used as filler neck).
2. rubbed metal part dry clean cloth.
3. Insert the dipstick back and take it out again - you see the real oil level in the gearbox.

The standard is the volume of lubricating fluid in the interval between the minimum and maximum, i.e. approximately in the middle of the marks.

Topping up oil

Topping up the oil in the checkpoint "21099" is carried out only after checking the level and taking into account its tendency to a minimum. As a rule, from 0.5 to 0.8 liters are added to a 5-mortar, and up to 0.6 liters to a 4-mortar. It is important to use oil of the same manufacturer and the same viscosity for topping up that is currently used in the gearbox of your car, mixing is unacceptable and can lead to a complete failure of the gearbox or its individual parts. using an oil syringe or funnel, after which the level is measured using a dipstick. Usually topping up is carried out in stages, periodically monitoring the level, since the volume in excess of the maximum will lead to extrusion from the gearbox through gaskets, seals and drives, which will necessarily lead to their replacement.

What is needed to replace

For a hand-made replacement, it is necessary to prepare the following set of tools and improvised means:

• overpass, lift or pit;
• ring key for 12 and 17;
• filling syringe or funnel;
• soft wire, flexible hose 25 - 30 cm long, electrical tape;
• a canister or other empty container with a volume of 4 - 5 liters;
• replacement oil with a volume of 5 liters;
• dry clean cloth.

Before starting the replacement, warm up the car and make a short trip of 5 to 6 kilometers.

Step-by-step instruction

Having prepared the car and all essential tool to change the oil in the gearbox with our own hands, we proceed to drain the old lubricant and cleaning related items.

Drain the oil

Drive the car onto a flyover or inspection hole, prepare an empty container, keys and wire.

1. Remove the rubber cap from the breather and clean it with a wire and a cloth.
2. Using a wrench, unscrew the drain plug on the gearbox and substitute an empty container to drain the old oil. The complete cleaning process will take 15 to 20 minutes.
3. Screw the drain plug tightly into place.

The gearbox is fully prepared for changing the lubricant, which means that you can proceed to the next step.

Filling in new oil

If the gearbox is equipped with a filler neck, then the filling process is quite simple:

1. Insert a funnel into the filler neck.
2. Fill in 3 - 3.3 liters of oil, depending on the number of gears in the box.
3. Check the level with a dipstick.

If there is no filler neck, use an oil syringe, after putting a flexible hose on it and fixing the junction with electrical tape.

1. Dial a full syringe (final volume is monitored by the level on the canister).
2. Insert the hose into the filler hole and use a syringe to pour in the required amount of lubricant.
3. Tighten the fill plug tightly.

The process of changing the oil in the gearbox is complicated only at first glance and can be delayed at the first change, later on you will be able to perform this operation in a matter of minutes and even with your eyes closed. Most importantly, do not forget, but rather write down at what run the last change was.

Automotive lubricants are usually associated with engine performance. Chemical compositions on the market are overwhelmingly focused on this power unit. But the transmission also needs maintenance. stable operation their mechanisms, requiring periodic renewal of lubrication. It is widely believed that the oil in the gearbox does not change - it is poured only once and this is enough for long-term operation. But with rare exceptions, this approach is fraught with rapid wear active transmission parts, which is harmful not only for the box itself, but also for elements adjacent to it.

Functions of gear oils

Special oils for efficient and safe work gearboxes are very similar in composition to motor analogues. They contain a base and special additives that minimize frictional forces, extending the life of the parts. In addition to lubrication, the oil in the gearbox performs the task of removing heat from the bearings and gears.

Much of the function of a particular composition depends on the additives added to it. Each additive plays a specific role in the maintenance of mechanisms. In particular, there are antioxidant and anti-corrosion additives that increase the durability of the shaft elements. Additives are also common, the effect of which is aimed at preserving the qualities of the main composition of the oil - these are, for example, depressant and antifoam additives.

Why is it necessary to change the oil?

In the normal state, the temperature of the lubricant filled into the transmission is 150 ºC (indicator at the time of movement of the machine). However, at the points of contact of the gears, this value reaches 300 ºC. Under the influence of peak temperatures, the oil foams and loses its lubricating qualities. Of course, the process of reducing the effectiveness of the composition occurs gradually, but there always comes a time when further work with old grease is not possible and the oil in the vehicle gearbox is being changed.

Among the signs that indicate the loss of working properties of the lubricant, an unpleasant hum of differential gears can be noted. Uncharacteristic noises in the area of ​​​​the box with old oil increase, and after 300-500 km of run, the process of destruction of parts begins. The final stage of this process involves a wedge in the gearbox.

Oil change intervals

For each car, the intervals between changing the lubricant are individual. As a rule, they are indicated by the manufacturer in the passport or manual of the machine. If we talk about average terms, it will be about 50-60 thousand kilometers. Russian manufacturer AvtoVAZ, for example, recommends pouring new oil into the gearbox after 75 thousand km.

A lot depends on how you drive and how the car is used. Intensive driving in traffic jams, where the “acceleration-braking” style suggests itself, leads to the need to change the oil after 40 thousand runs. The quality of the oil itself also plays a role. Mineral compositions without additives are considered the least effective and long-lasting. Semi-synthetic and synthetic transmission lubricants are more durable.

What oil to use?

In choosing a transmission lubricant, a lot depends on the type of box. To understand which oil is best to fill in the gearbox in a particular case, it is necessary to designate the basic division into compositions for automatic units and mechanical ones. Means for automatic transmissions are marked with the abbreviation ATF and are distinguished by higher requirements. Such oil not only provides lubrication of gear elements, but also contributes to the smooth operation of friction parts. The properties of oils for manual transmissions (MTF marking) are more focused on reducing mechanical loads, lubricating friction spots, removing heat and corrosion particles.

It is equally important to take into account the viscosity coefficient - the division in this classification can be determined by SAE designations and API. Gradation by API system provides for 7 categories, differing in the degree of loads exerted on the parts of the transmission. If the gearbox oil is selected in accordance with SAE classification, then the seasonality of the composition will come to the fore. So, there are transmission auto chemicals for summer, winter and all-weather operation.

Preparing for an oil change

The operation of draining and filling the oil with particular difficulties in experienced motorists does not cause, but to facilitate it, you should be well prepared. First you need to determine how much oil is in the gearbox of the car being serviced. For example, VAZ models require an average of 3-4 liters, and a standard European sedan 5-7 liters may be required. To ensure this volume, you need to take a suitable container - a basin, bucket or canister.

Conditions will also be required for setting the car in a position convenient for changing the fluid. To do this, you can use a flyover or a viewing hole. Due to the lack of special conditions, many garage craftsmen change the oil in the car's gearbox by putting it on the curb with the front wheels. But this is an extreme case, since there is a risk that the filled liquid will stagnate at an angle.

Oil change procedure

When the car is ready to change the transmission fluid, you can begin the operation. In most cases, it is performed according to the following instructions:

1. The car is put on the handbrake, and its wheels are securely blocked.
2. The cap in the fluid filling hole is removed and cleaned.
3. Next, the oil check dipstick is removed (in some models it is not available).
4. The drain plug is unscrewed, after which a container is brought to the hole to drain the oil.
5. Waiting for the oil to drain - on average this happens in 15 minutes.
6. Next, oil is poured into the gearbox with a periodic check of its level using a dipstick. The procedure can be completed when the "max" mark is reached.

Conclusion

Manufacturers of auto chemicals regularly improve the compositions transmission fluids, allowing ordinary drivers to provide quality and durable work gearbox mechanisms. Knowledge of update rules lubricating compounds allows you to economically service cars without resorting to specialized services. Properly selected and correctly filled oil in the gearbox will not only extend the life of the transmission parts, but also increase the working life of the elements that interact with these mechanisms.

The cost of such oils varies from 100 to 800 rubles. per litre. Given that the replacement is carried out on average once every 2-3 years, the most economical motorists can put up with such costs. This is exactly the case when ensuring reliability and safety on the road costs an acceptable amount.

The gears of any gearbox are subject to intense wear, so manual transmission lubrication can increase the service life and reduce maintenance costs. Gear oils are classified by several specifications, do not have the same markings and composition, so the user must have at least minimal information about manual transmission lubrication.

Appointment of gearbox lubrication

The gearbox is the largest gearbox in a car transmission. Thanks to the step change in the gear ratio, the driver gets the opportunity to combine two ranges - the wheel speed in the range of 50 - 1500 min -1 and the crankshaft speed of the internal combustion engine 800 - 8000 min -1. Depending on the type of transmission, the gears of the reducer are lubricated in the following ways:

• cylindrical - oil bath with low-speed wheels immersed by a third of the diameter, high-speed wheels to a depth of h = 5m;
• conical - crankcase lubrication with immersion of the lower gear tooth in the oil as a whole;
• planetary - the high-speed stage is immersed in an oil bath to the entire depth of the internal tooth.

The drain hole must have a diameter greater than 20 mm and the slope of the crankcase bottom must be within 3 degrees. The filler plug is usually located at the level of the oil bath mirror, which eliminates the need for a dipstick.

Information on which oil to fill in mechanical box gears, is relevant for the repair of components and assemblies associated with the gearbox (for example, clutch replacement) when the lubricant itself is depleted.

The gearbox traditionally refers to units with high operating loads. In addition, manufacturers passenger cars use different designs gears in different models of cars, so the frequency of changing the oil in the manual transmission is indicated in the manual without fail.

The user should take into account that changing the oil in a manual transmission has nuances:

• with a minimum maintenance budget (filling with mineral oil), operating costs will increase, as the lubrication life will decrease;
• when buying expensive synthetics, on the contrary, the initial investment will increase, but the service life of such an oil is higher, the replacement frequency is longer than in the previous case;
• semi-synthetics has a rational ratio of quality and cost of lubricant.

There are winter, all-season and summer oils, allowing you to choose a lubricant for unequal operating conditions.

Thus, the oil in the manual transmission solves several problems at the same time:

• lubrication and friction reduction of gears;
• heat removal from friction pairs;
• removal of metal filings from the surfaces of wear parts of the gearbox;
• protection of gears and cogwheels from oxidation and corrosion.

The cost of 3 liters of gear lubricant is much lower than replacing a manual transmission or breaking a gear while driving.

Manual transmission operating modes

Due to operating conditions, the auto gearbox must provide 1 - 2 lower gears, reverse speed and a few higher gears. Large gear ratios (5/1 - 3.5/1) are used in lower gears. At the same time, the transmission of an SUV reaches a power range of 9 units, for passenger cars it is limited to 6 units. Traction force in lower gears, the maximum, but the car cannot reach high speed.

Gear ratios of medium gears are in the range of 2.5 / 1 - 1.5 / 1. Reduced engine noise at the same speeds. These gears are considered "short" and are very tiring for the driver, as they require frequent shifting in changing driving conditions.

Top gears reach gear ratio close to 1/1, that is, the shafts rotate with the same angular velocities. It is convenient on the highway when driving with constantly high speed vehicle.

In classic gearboxes, 3 shafts are usually used - primary, intermediate and secondary. In the gear blocks, the gears are helical to reduce noise. In addition to gears, the box contains synchronizers, cams and clutches.

For gearboxes with synchronizers old design a budget oil for a manual transmission marked GL-4 is used. For most modern cars manufacturers indicate hypoid oil GL-5.

Attention: An attempt to improve the quality of lubricant in the box domestic VAZ With high mileage lead straight to opposite effect- the work of the synchronizers will be disturbed, since the films from these gear lubricants have different properties.

The oil should be changed either at a service station whose employees do not make such mistakes, or adhere to the requirements prescribed in the manual for the operation of the machine.

Gear lubricant is considered consumable, after a certain run, its components begin to break down, and metal chips and third-party impurities accumulate inside, modifying additives decompose. That is why changing the oil in a manual transmission must be timely and technically competent.

The choice of lubricant for a manual transmission

According to the international API system developed by the American Petroleum Institute, manual transmission oil is marked with the letters GL. Of the six existing classes in manual gearboxes only GL-3 and GL-4 modifications are used. However, in boxes with hypoid gears GL-5 oil is used.

IN domestic standard GOST gear oils are designated TM. The marking uses two numbers separated by a hyphen:

• the first is the viscosity class;
• the second is a group for decoding operational properties from the table below.

TM-3 - TM-5 is poured into mechanical boxes for temperature conditions within 150 degrees.

In addition, the gear lubricant has an SAE viscosity classification developed by the American Society of Engineers. There are seven classes in the SAE system:

• four winter ones marked W;
• three summer unmarked;
• several all-weather with double markings.

For example, multigrade gear oil for manual transmission marking 75W90 simultaneously has the characteristics of winter gear lubricant 75W and summer 90.

Leading gearbox manufacturers General Motors and Ford additionally developed their own designations for automatic transmission lubricants. ZF produces lubricants marked TE-ML 1 and TE-ML 2 for passenger cars and SUVs with manual transmission.

Although GL-5 grease has best performance compared to GL-4 oil, it is not suitable for manual gearboxes with synchronizers for a number of reasons:

• there are more sulfur-phosphorus additives here - 6.5% instead of 4%;
• synchronizers are made of copper-containing alloys;
• in the presence of sulfur, these alloys corrode.

IN front wheel drive cars the main gear is inside the gearbox, so the designers had to choose between scuffing the main gear gears and corrosion of the synchronizers, so in the car manuals French manufacturers GL-5 oil is poured into the manual transmission, and the rest consider the best option, all GL-4.

Attention: Synthetic oil usually has a double API specification, so it can be used in transmission gearboxes without the above selection problems.

Grease change interval

Unlike the engine, the gearbox is located in hard to reach place cars, so daily monitoring of the level and color of the lubricant is not possible - no one will remove the wheel before each trip, so the information whether the oil needs to be changed should be based on the following factors:

• for manual transmission, an interval of 7 years of operation or a mileage of 100,000 km is adopted (depending on which comes first);
• for the urban cycle, it is recommended to reduce these indicators by 30%;
• the specified regulation - 70,000 km of run or 6.5 years of operation - is valid only for synthetic oil With maximum term services;
• when using semi-synthetics, the oil in the manual transmission should be changed more often - after 50,000 km;
• mineral grease must be changed every 40,000 km of the car.

Attention: When buying a new domestic passenger car information on how to change the oil in the gearbox is relevant on the same day. Since the VAZ comes off the assembly line with mineral oil, which is better to change to semi-synthetics immediately.

Lubrication level diagnostics

Due to the use of unequal gears (planetary, cylindrical, bevel), the oil level in the manual transmission is different.

Gearbox manufacturers have made it easy for users to check the oil level:

• a dipstick is either built into the filler plug, or the neck is at the level of the oil mirror;
• the drain plug is equipped with a magnet that collects metal chips;
• the bottom of the crankcase has a slope towards the drain hole, however, the car must be level, and the lubricant flows through the funnel.

Having decided which oil to pour in terms of viscosity and temperature regime operation, you can change the lubricant in the garage yourself. The operating manual indicates the amount of oil. The algorithm for checking the lubrication level in the gearbox is extremely simple:

• the engine must be warmed up, then cooled for 3 hours after the trip;
• install the machine horizontally;
• clean the gearbox housing near filler plug and unscrew it with the key.

The level along the lower edge of the filler hole is considered the norm; in all other cases, the user pours it inward until the lubricant begins to pour back out.

Changing the oil in a manual transmission

After a run of 30 - 70 thousand kilometers, when the oil should be changed according to the manufacturer's recommendations, it is necessary to buy lubricant in the right amount and stock up on a container for draining the waste. The main nuances are:

• change the oil in a manual gearbox should be on a warm engine to increase the rate of fuel and lubricants flowing out of the drain;
• most best oil, diluted with a certain amount of lubricant remaining inside the crankcase, will last much less, since it will lose its declared characteristics;
• to access drain hole usually dismantled front wheel from the driver's side, the car is hung out on a jack;
• Knowing roughly how much oil the manufacturers poured, you can avoid overfilling.

When replacing the used working medium good oil gear shifting will improve, extraneous noise will disappear.

When is oil topping necessary?

The manual for the car indicates how often to change the oil, depending on its composition. However, when repairing some components and assemblies related to the transmission of the machine, it is necessary to remove the gearbox. In the manuals of most manufacturers, it is indicated to drain the oil when dismantling the gearbox, therefore, after refilling the lubricant after installing the gearbox in place, it may be necessary to top up some gear lubricant.

The oil change interval varies depending on the following factors:

• driving style - if the gears are not engaged correctly, the mechanical wear of the gears and the amount of chips in the crankcase increase, respectively;
• driving cycle - urban mode is considered the most loaded for all transmission units.

Knowing how to check the oil for color, you should do this periodically, without waiting for the replacement deadlines according to the maintenance regulations. For example, oil with the same label, but from different manufacturers, will have an unequal operational resource.

Thus, only transmission oil is poured into the manual transmission boxes. This guide will help you choose the viscosity for front wheel drive car and domestic "classics" depending on temperature range region of operation.

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