Since 2000, the transmission in cars has acquired a particularly complex structure. In my opinion, such structures wear out quickly. If the vehicle owner operates the car in particularly harsh conditions, then breakdown will occur much faster.

The gearbox may first lose its former performance, and then begin to make unnecessary sounds. You can fix the problem without much difficulty if you use a special additive in the gearbox in time. There are different compositions. Some are used to reduce noise in the gearbox, others to reduce fuel consumption. There are other compositions. Let's talk about additives in manual transmissions.

Why are additives needed in manual transmissions?

Extraneous noise in the gearbox occurs constantly. At first, car enthusiasts do not pay attention, and then they are faced with the need to repair a functional unit. Usually, difficulties arise for owners of “mechanics”. Noises occur equally often in new and old car models.

Today, every driver can solve the problem quickly with the help of anti-noise additives in manual transmissions. The advantage of this option is that without technical intervention you can get rid of unpleasant noise and even extend the life of the car. There is no need to disassemble the gearbox, which greatly simplifies the process.

Is it possible to reduce the noise in the gearbox?

To reduce noise in the gearbox, you need to figure out what the problem is, because if the bearing devices are worn out, the parts must be replaced, like other worn-out transmission elements. Carrying out repairs, from a reliability point of view, is considered the best option. After all, broken elements will be removed, which will lead to more efficient operation of the unit. Often the appearance of hum and noise in the operation of the gearbox is associated with a lack of oil in the system. In case of such a problem, it is necessary to add lubricant to the unit and find out the cause of its leakage. If it is associated with damage to the gearbox, then you need to determine the defective location and repair the gearbox.

Engine gearbox

Is it worth buying additives?

Not so long ago, special additives against noise in engine gearboxes appeared on the domestic market. This option to reduce the noise in the operation of the unit is ideal if the car owner does not want to repair and disassemble the gearbox. Moreover, not everyone can repair the transmission on their own. The use of additives is relevant if the parts and components of the unit are not worn out to a critical condition. If there is a lot of wear on gearbox parts, then fixing the problem is to replace the components. In this case, it is not advisable to add additives.

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The use of special means will effectively reduce the noise level in the box, but it must be taken into account that such substances do not act immediately. It will take some time, in some cases it is necessary to drive at least 300 kilometers by car to achieve the result. Also, the use of additives makes it possible to soften the operation of the unit as a whole, making it easier for the driver to switch the gear selector to different modes. In practice, the complete disappearance of noise occurs on average after the car has traveled about 500 km.

How effective are these additives?

Additives for manual transmissions are used not only to reduce noise. In addition to the indicated method of influence, the following composition possibilities can be distinguished:

• increasing the service life of the transmission;
• the gearbox starts to operate much quieter;
• the operation of the checkpoint becomes clearer.

Despite the wide range of possible improvements, you should seriously think about it before adding the compound to a manual transmission. Using an additive may not give the desired effect. Here the choice of a suitable composition plays an important role.

Popular Supplements

"Hado"

The “Hado” additive restores transmission gears, bearings, and other parts of the gearbox, protecting them from severe wear. This revitalizant forms a layer of metal on the parts of the unit. The manufacturer claims that the additive is capable of restoring the geometric parameters of deformed transmission parts.

Additive "Hado":

• eliminates potholes and scratches on gearbox parts;
• reduces noise by ten times;
• ensures normal functioning of synchronizers;
• reduces fuel costs (especially important for cars with all-wheel drive);
• makes it possible to use the unit even if there is a gearbox oil leak.

Microhardness is 750 kg/mm2. This gearbox additive is resistant to corrosion.

The additive must be poured into the oil filler neck. The quantity depends on the lubricant complex. If it holds two liters of lubricant, one tube will be enough; 5 l – 2 tubes; more than 5 – 3 tubes. The additive must be poured after the car has warmed up.

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"MosTu Ultra"

"MosTu Ultra" is considered a domestically produced revitalizant, which has proven itself well among Russian drivers.

This additive:

• forms a special film on contacting parts, which has a low friction index;
• reduces the level of friction, eliminates deformations of spare parts, restores automatic/mechanical parts;
• reduces gearbox noise, makes it easier to change modes;
• increases the operating period of the unit by 5 times;
• provides wear reduction;
• reduces vibration impact;
• increases the performance of parts for manual transmissions and automatic transmissions.

The additive can be added without disassembling the transmission.

Stage Transmission

This consumable is considered a 3rd generation product from . Like other transmission additives, it allows you to restore unit parts, reduce their wear, and increase the operating period.

The product provides:

• formation of a metal-ceramic film with good protective properties on automatic transmission/manual transmission parts;
• reduction of noise and vibration effects;
• increasing the accuracy of mode changes;
• reduction of fuel costs;
• protection of the transmission, even if it leaks.

The product should be poured into the oil filler neck or dipstick hole after the car has warmed up. Proportions: 1 tube per three liters of lubricant.

"Getriboil-Additive"

This wear agent is produced by, which is considered one of the best manufacturers of motor oils. The additive consists of molybdenum disulfide and is intended for cars with manual transmission.

When the additive is poured into the oil, the temperature in the unit decreases, which is why it operates more quietly. The teeth begin to work better, this allows you to easily change gears.

The product must not be poured into automatic transmissions. For two liters of lubricant you will need 1 tube of consumables.

"Nanoprotek Maximum"

The additive is intended for use in manual transmissions. It processes spare parts for both cars and trucks. It can be used both in domestic cars (VAZ) and foreign cars.

What are the advantages of this additive? The most important advantages are:

• the formation of an oxide film on parts of the transmission, which reduces noise;
• improving gearbox performance;
• reduction of gasoline costs.

Thanks to its own indicators, Nanoprotek Maximum makes it possible to significantly increase the operating period of the unit. The film formed on the gearbox parts is resistant to high loads. Consequently, spare parts treated with the additive will not wear out so quickly.

"EX 120"

The product is intended for use in mechanics. It reduces wear, repairs deformed parts, and extends service life.

"EX 120" contains twenty percent more active elements. This makes it possible to effectively repair transmission parts. This additive forms a special film on bearing/shaft/synchronizer parts and restores geometric parameters.

The additive provides:

• improving the accuracy of mode changes;
• reduction of gasoline/diesel consumption;
• elimination of abrasions;
• noise reduction;
• precise functioning of synchronizer elements.

"Revitalizant"

This tool was developed by specialists. In view of this, the product has indicators that are similar to Xado additives. It is intended to restore worn transmission parts and protect them under harsh operating conditions. Revitalizant can also be used to eliminate leaks.

You should use the product like this:

1. Pour the additive into the oil filler neck. For 1 liter of lubricant you need to pour three milliliters of additive.
2. The product should be poured the second time when the car has driven at least 4000 km or the engine has worked for 150 hours.
3. The 3rd time the additive is poured at the interval indicated above. There is no need to change the oil fluid.

The driver should feel improvements in the functioning of the transmission after driving at least fifty kilometers.

"Nanoprotek 100"

This product is similar to Nanoprotek Maximum, but is still slightly different from it. Nanoprotek 100 is best poured into recently purchased vehicles.

Additive:

• allows the gearbox parts to quickly grind against each other;
• increases the operating period of the unit by approximately 2 times;
• protects the car transmission from wear as much as possible;
• has a positive effect on a variety of parts, both metal and rubber;
• significantly reduces vibration impact and noise;
• restores geometric parameters of deformed components;
• makes it possible to operate the car when lubricant is leaking.

In order to fully feel the effectiveness of the product, it must be poured into the vehicle’s transmission once every hundred kilometers.

How to choose the right additive for manual transmission?

Each additive manufacturer initially estimates who will buy its products. The use of additives occurs everywhere, but much depends on the quality and purpose of the composition. There are companies that indicate that additives can be added immediately after changing the oil and the effect will be very fast.

According to user reviews, it is better to add the additive to the lubricant two days after the car is running. This will allow you to get the desired result. In order not to make a mistake with your purchase, you should follow these tips:

1. Buy supplements from reputable manufacturers. They really have the declared qualities and can produce the desired result.
2. It is better to purchase the additive composition taking into account the breakdown of the car. Typically, noise-reducing compounds do not save fuel.
3. The choice of a suitable composition is influenced by the mileage and service life of the machine. It is also important to take into account the operating conditions of transport.
4. When purchasing, study the label and packaging of the product to eliminate problems with counterfeit.
5. Before making a purchase, read user reviews. This will allow you to understand which additives are really high quality.

All these tips will help you purchase quality products. It is important to then use the additive according to the instructions.

The most popular additive compounds

There are several additives that may be of interest to Russian car owners. The compositions are produced by reliable manufacturers and are quality products.

Despite the many positive characteristics, it is important to use each supplement according to the instructions. Only then can a good result be achieved. Product prices vary. On the market you can find formulations for 400-700 rubles for a volume of 250-300 ml, but this is not the maximum price tag.

What supplements are best not to use?

Not all products that you find on sale effectively remove noise and improve the performance of the transmission unit. Some additives cause serious damage to the gearbox. According to many manufacturers, the presence of detergent additives and stabilizers in the liquid makes it possible to increase the intervals between lubricant changes. But that's not true. When a lubricant is used for a long time, the consumable material changes its characteristics and properties, as a result of which the effectiveness of the substance against friction decreases. In fact, the maximum increase in service life is possible by two thousand kilometers, regardless of the type of product and its composition.

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According to experts, car owners should refuse to purchase additives that contain high-tech additives and can increase the service life of the transmission by 300-500%! The bottom line is that ordinary substances based on molybdenum disulfide are usually sold under the guise of technological products. Their high percentage content causes a complete change in the composition of the lubricant, since it already contains anti-wear additives in sufficient quantities. It is impossible to say with certainty about the consequences that such mixing will lead to. But this usually leads to the destruction of the polymer components, as well as the valve block. This problem leads to the need to repair the unit.

No less harmful to transmissions are additives whose manufacturers promise to quickly stop oil leaks, regardless of the size of the damage. The principle of operation of such products is similar to the work of sealed adhesive for the cooling system, although the composition of such substances is different. After using the additive, a coating forms on the internal components of the gearbox, which cannot be removed without intervention in the operation of the unit. Even if the leak stops for some time, it will appear again after 1 thousand kilometers on average. Therefore, gearbox repair is guaranteed.

The channel in Sandro's garage published a video, the author of which tried to get rid of the noise of the input shaft bearing using a transmission additive.

User reviews

Let's take a look at some comments from car owners who have already added additives to their oil. Reviews taken from the Internet.

Timofey, 33 years old

I've been a fan of Liqui Molly for a long time. German quality is a guarantee of the desired result. I used additives for manual transmission. They turned out to be very effective. A little expensive, but the main thing is a positive result.

Sergey Petrovich, 66 years old

The store offered to buy XADO additives. At first I refused, but then I read the abilities and decided to buy it. I didn't make a mistake. The quality is excellent. There is no noise and vibration in the gearbox. They used to be very annoying, but now there are no problems.

Alexander, 26 years old

I inherited a car – also a Soviet “six”. The transmission was noisy and there was a grinding noise. I didn’t want to take it apart, so I filled it with EX 120. Now everything is much better. It’s worth saying that the effect did not come immediately, so don’t be nervous, just wait.