Overview of transmission oils 75W90. What transmission oil is better to use: test results and reviews. Whether flushing need when replacing oil

To protect OT. premature wear Car gearboxes need to pour into it only the best transmission oils. We reviewed a lot of such liquids on the market, compared them on a huge number of criteria and selected only the most reliable means. This top is drawn up with regard to customer reviews, therefore is quite objective. It addresses all the advantages and disadvantages of specific products, having familiarized themselves with whom the choice of good oil will not cause much difficulty.

The market of oils, including transmission, is very saturated with various offers. Among them, there are both budgetary and average brands, as well as premium brands. This rating includes products and foreign manufacturers, and domestic, Russian companies. This is what firms are we talking about:

• Shell. - British-Dutch oil and gas company, which supplies gasoline on the international market, lubricating materials, motor and transmission oils. She has both completely synthetic agents and mineral. There are optimal suggestions for low-power, and for serious engines. The company produces products for passenger carsmobile, truck, motorcycles. It is characterized by environmental friendliness, safety and optimal value ratio and quality.
• Eneos. – japanese company Releases oil I. transmission fluids With a wide selection of viscosity, density, operating temperature modes. Its means are suitable for use in any season, even in the conditions of harsh winters. There are options for automatic, and for mechanical gearboxes. They are sold in several volumes - 0.94 l, 1.88 liters, 20 liters and 200 liters, and usually, if you take a large amount at once, it turns out to save well.
• Zic - This is a huge industrial concern engaged in oil production and processing, which comes in many countries of the world. Its assortment has fuel, automotive lubricants, transmission oils. Basically, here we are talking about completely synthetic means that have excellent binders, antifriction, anti-corrosion properties. They have adequate prices and good quality.
• Luxe. - Transmission oils of this brand are created according to the latest technologies, which allows you to guarantee a long service life of the transmission, smooth switching of the gearbox, preventing the wear of parts and the exclusion of friction. There are proposals for both mechanical and for automatic transmission. Most often they can be used in all weather conditions, even with an extremely cold winter. The company has provided options for passenger cars, trucks and other equipment.
• Rosneft - Russian oil and gas company, one of the largest oil producers in the world. It produces transmission oils for passenger cars, trucks and other techniques. Depending on the species, they can be used both in automatic transmissions and mechanical. Their use allows you to guarantee efficient operation in heavy conditions. The assortment of firms have synthetic and semi-synthetic lubricants.
• Castrol - European brand under which products are produced in Germany, Austria, Italy and Belgium. It is created on the basis of innovative developments and is recommended for use by the giants of the car market as Opel, Porsche, Ford, Chevrolet and others. They are stable in operation, regardless of temperature and season. With their help, premature wear and overheating of parts are excluded. They also help protect them from corrosion and thus increase the use.
• Lukoil - This is one of the main competitors of Rosneft, the company also works primarily on russian market. It produces many technical fluids And oils for cars are completely different classes. There are also suitable suggestions for commercial vehicles. Its assortment is mineral, and semi-synthetic, and synthetic means. Products are sold in containers of 1 and 4 liters. Most common materials with a viscosity of 75W-90 and 80W-90 are most common.
• Liqui Moly. - This is one of the oldest companies in the car chemical and leaving market. The main office is located in Germany, the goods are supplied to many countries of the world. Products are good fluidity, excellent resistance to low and high temperatures, flawless anti-corrosion and antifriction properties. It does not oxidize, prevents the formation of deposits and shows a low evaporation, which saves at its expense.

Products of each company are well represented in the market and problems with its search in the market usually does not occur.

Rating of transmission oils

To compile this rating, we analyzed many proposals on the market by choosing the most worthwhile drivers from them. Before inclusion in the top of a particular means, the opinion of buyers has carefully studied. At the same time, many factors were taken into account:

• Manufacturing firm;
• Price;
• Oil type - mineral, synthetic or semi-synthetic (mixed);
• Viscosity class;
• Antifriction properties;
• Quality lubrication of parts;
• Efficiency of preventing workers' wear;
• Purpose - for which gearbox is released;
• Environmental friendliness;
• Whether leaks are;
• Reliability of preventing deposits and corrosion;
• Number of tolerances;
• Compliance with international quality standards;
• Volume;
• Economic flow rate.

Best Mineral Transmission Oils

This type of oil is usually cheaper than synthetics and semi-synthetics, as they are made of environmentally friendly materials, without applying expensive additives. Accordingly, these tools are safer both for the environment and human and transmission details. In this category, you can select 3 best transmission oils.

This oil is considered the best in its category at the expense of good performance for transmissions and mechanical transmissions of ZF, MAN and products of a number of other manufacturers. Thanks to the use of high-quality additives, long-term reduction protection is provided.

Shell has improved the anti-virus fluid properties, which allows it to effectively prevent the formation of deposits on gears. With it, it is also possible to reduce fuel consumption and save money at his refueling.

Advantages:

• There is practically no leakage;
• Perfectly lubricates transmission nodes;
• Good compatibility with sealing materials;
• Increased transmission resource;
• It can be used in nodes where you need a liquid with a low viscosity.

Disadvantages:

• Not detected.

The reviews write that this tool is chosen due to its relative naturalness and long service life, which saves money.

... I have repeatedly poured ENEOS fluid, and I can say that it provides a great level of transmission lubrication ...

Opinion expert

In the top of the transmission oils it best tool For use in winter, including in the northern regions. It is interesting in terms of the possibility of applying at temperatures up to -33 degrees Celsius, and only after the excess of this indicator is lost.

Its feature is to destine for cars with an automatic transmission. The main advantage of this tool is considered a large interval between replacements, which allows you to save on car maintenance.

Advantages:

• Not afraid of frosts;
• Well withstands the impact of high temperatures;
• Excellent viscosity;
• Impeccable interaction with automatic transmission;
• No unpleasant odor;
• Natural composition.

Disadvantages:

• Unfortunately, it is not very suitable for mechanical transmissions.

This tool is the best for lubricating mechanical gearboxes. It is intended for use in rear-wheel drive models. It contains enough phosphorus and sulfur, which provide oil with excellent anti-facility properties. Due to this, it can be safely used in harsh conditions. With it facilitates operation vehicle. Having an 80W-90 viscosity class, it can be used at temperatures to -26 C. Oil provides high-quality lubrication of transmission elements.

Advantages:

• Does not allow premature transmission wear;
• High oxidative stability;
• Works well when cold start;
• Does not lose its viscosity at temperature fluctuations;
• One download is enough for a long time.

Disadvantages:

• Not suitable for all types of drives;
• Not the best way With large loads on the gear teeth.

Best Synthetic Transmission Oils

It is a cheaper and more profitable alternative to Minequeta, because in it, except clean oilsThe additives are also contained. Such means are poured mainly into machines, not strongly loaded and most often with old models of transmissions. This species has only one more or less important drawback - it can flow through various seals due to its not high viscosity. We present here the top 3 in this category of transmission oils.

This oil has good quality due to the content of a large number of effective additives. Due to this, it is guaranteed to prolong the service life of the transmission parts and allows it to work correctly even in extreme weather conditions. With it, the formation of deposits is prevented. Practical this tool does and complete compatibility with sealing compounds. It also minimizes friction losses, which prevents premature wear.

Advantages:

• Adequate price;
• Does not allow the destruction of polymer seals;
• Prevents the appearance of vibration and noise with severe frosts;
• Sold in convenient canices;
• Does not lose fluidity at temperatures to -45 s;
• Assigned class and GL-4, and GL-5.

Disadvantages:

• Restrictions on applied relatively automatic boxes Transmissions.

Rosneft Kinetic GL-5 75W90

it transmission oil It turned into a rating of the best due to the content of high-quality additives, guaranteeing the reducer of a long service life due to efficient lubrication and prevent friction. Thanks to them, the replacement interval is increasing, which is beneficial for car owners. This option is suitable for use in highly loaded transmissions, including those operating with extreme positive temperatures.

Advantages:

• Can be used in any season;
• Improved antioxidant properties;
• Suitable for use in cars and commercial machinery;
• Reliably protects gears;
• Increases the service life of synchronizers.

Disadvantages:

• Not detected.

Rosneft transmission oil Kinetic GL-5 75W90 in the ranking has the best price and quality ratio, suitable for russian cars (Niva, etc.) and foreign ones.

Despite the synthetic composition, this oil has good quality. It is universally, since it can be poured into the passenger cars, and in small trucks. It contains effective additives that allow you to improve the operational properties of the product and thereby increase the life of the transmission. According to customer reviews, it manifests itself well both in loaded cars and in those used not very often. A special moment is resistance to a wide range of temperatures, both low and high.

Advantages:

• Does not lose fluidity at temperatures up to -54 degrees Celsius;
• Sold in a convenient capacity;
• Economural consumption;
• Minimum losses when working;
• Pronounced lubricating properties.

Disadvantages:

• Not the best option for automatic transmissions;
• One type of classification - GL-4 +.

The best semi-synthetic transmission oils

It " golden mean"For those who do not like the quality of synthetics and at the same time, the price of" mineral water "seems high. They combine all the advantages and part of the shortcomings of both types of funds. With it, it is possible to reduce friction between the working surfaces of the parts and thereby increase their service life. With a large number of additives, they can eat metal somewhat, but at the same time reduce the level of overall wear. On the market, you can especially allocate 3 options presented in the ranking.

Add this transmission oil to the best rating is already because it is approved by most car manufacturers. To save him such a location allowed a carefully balanced set of additives. But this semi-synthetic oil Suitable only for automatic transmissions, which makes it not universal. He is under power to prevent the friction and appearance of harmful deposits for detail. Its use ensures the lack of vibration when switching and makes this process softer.

Advantages:

• Good low temperature fluidity;
• Provides quick gear shift;
• Excellent thermo-oxidative stability;
• Pronounced antifriction properties;
• Reliably prevents corrosion and wear.

Disadvantages:

• Not detected.

This transmission oil is interested in what allows the gearbox in terms of high loads and a wide range of temperatures. It is inherent in excellent anti-wear and anti-promotional properties. According to customer reviews, this means is universally, because it shows well as in passenger cars and in cargo transport. SAE 75W-90 viscosity class makes it possible to save on fuel.

Advantages:

• Suitable for use with a mechanical transmission with any type of gear;
• Produced on the basis of thoroughly purified oils;
• Does not pollute the environment;
• Excellent oxidation resistance;
• Perfectly lubricates details.

Disadvantages:

• No choice of packaging packaging, sold 4 liters.

The tool is considered one of the best for the fill in the vase, including in the Niva.

Popular oil makes its versatility, a large number of tolerances and compliance with the most stringent requirements for the production of such products. The TDL prefix in the title means that it can be used regardless of the type of drive. The liquid is perfectly suitable for all types of machines, which makes it possible to effectively apply it in a mixed car park. The tool is easily replaced independently, for this it is not necessary to contact the service.

Advantages:

• Dual admission GL-4/5;
• Reliably prevents extension of parts;
• Excellent antifriction properties;
• Suitable for both synchronized and non-synchronized gearbox;
• Can be used with reductors with hypoid engagement.

Disadvantages:

• Not the cheapest, as for a semi-synthetic oil type.

What transmission oil is better to buy

When it comes to semi-synthetic and synthetic oilsthen you need to pay attention to the Class SAE 75W-90. If you need mineral, then you should choose SAE 80W-90 or SAE 85W-90. The first is not so thick, and the second has a high viscosity. remember, that winter oil It is indicated by W. If you need a liquid for passenger cars, then first of all it is necessary to navigate the 3rd, 4th and 5th types, the cargo and other technique usually buy 1 and 2nd.

• For mechanical gearboxes the best choice There will be 80W Shell SPIRAX S3 G.
• If you need an option for transmissions with a servo drive, then it is necessary to look at ENEOS ATF DEXRON-II.
• Those who have contaminate properties in priority, it is better to buy 80W-90 GL-5.
• For use at extremely low temperatures, will be the same time zIC oil GFT 75W.
• If you need to focus on lubricating functions, the ideal option will be Kinetic GL-5 75W90 from Rosneft.
• For cars that are used very often, Castrol Syntrans Transaxl is well suited.
• The best thermoociable stability and anti-corrosion properties have the Zic ATF Multi Vehicle.
• Those who want to save, you can buy products from LUKOIL GL5 75W90.
• If a large number of tolerances are important, then optimal option Is Liqui Moly Hypoid-GetRiebeoil TDL 75W-90.

The classification of the API, depending on operational performance, is divided into 6 categories. The category is indicated by the index by which the area of \u200b\u200buse and the level of oil quality becomes clear. For nodes of passenger cars, oils of 2 groups are used: GL4 and GL5 (with the Russian designation TM4 and TM5).

• GL4 (TM4) - Used for nodes of machine designs with medium loads. Fills in mechanical gearboxes (manual transmission) and devices with gearing cone spiral gearboxes. The use of such transmission oils can be carried out in the hypoid transmissions (it is the hyperboloid, it is the screw type) type.
• GL5 (TM5) - used for assemblies of units developing heavy loads. Oils with such a standard go for operation in hypoid boxes and gearboxes, with low torque revolutions with high speeds (such programs are subjected to short-term shock loads). The composition of TM5 or GL5 oil contains additives with phosphorus content that protect against scaling.

There are such designations, for example, GL-4/5 for oil 75 W 90. Index designation through 4/5 indicates that the oils can be operated in the mechanisms of various designs.

Specifications of transmission oils

In addition to the classifier API, there is still a MIL specification developed by the Americans. The oil with ciffer 75W90 (in accordance with the specification of MIL) will be denoted by MIL-L 2105 A, B or C. corresponds to the analogues of GL4 and GL5.

Classification of oils for transmission according to ZF standard

On the label, the 75W90 oil can be seen such a designation - Z. Z Classifier informs that such an oil is suitable for all types in front of motor vehicles. The marking is carried out by the letters ZF Te-ML and numbers from 01 to 14.

The difference between GL4 and GL5

In accordance with Russian State Standard GOST 17479.2-85 GL4 transmission oils (TM4) is intended for hypoid type transmissions, as well as in conical engagement transmissions, which work with loads up to 3,000 MPa (megapascal) and maximum temperatures up to +150 degrees. Such data correspond passenger cars with front-wheel drive.

APP GL5 - for hypoid transmission with shock loads at a voltage of more than 3000 MPa. Such a transmission fluid creates a reliable operation of the node.

It is worth paying attention to the fact that in the oil 75W90 API GL4, compared the same labeling, but the class is higher, 2 times less additives containing phosphorus and sulfur. The presence of sulfur and phosphorus additives in the composition of oil additives provide protection against wear. Since such additives can be stronger than the surfaces of soft metal types, it is not recommended to use oils with such additives for transmissions.

Important! In the designs in which it is necessary to pour 75W90 GL-4 oils, and the GL-5 was flooded, it starts to wear some box details pretty quickly. The box quickly appears copper chips, because the synchronizers are made of copper material, and gray-phosphoric additives that are in TM5 oil destroy such metal as copper.

Also, it is also impossible to move from the previously filled GL4 to GL5, and back, because it is completely different in composition and oil use.

Rating of transmission oils

1. Viscosity. As already mentioned above, in the manufacture of oil is a "golden mean", which will provide optimal viscosity in frosts, and, which will provide lubricating capacity at high temperatures.
2. Temperature. All substances have their limit temperature indicators in which they freeze and, under which they are ignited. Transmission oils must have the highest possible range of critical temperatures.
3. Critical load. Oil quality is determined by the number of critical load. What it is more, the higher the quality of the oil.
4. Zadira index. Here the same thing is the higher this value is the better.
5. Stewing load. In accordance with the standard GOST, the welding load should be higher than 3000 H (Newton).
6. Value value. This designation is only for GL-5. The value of wear should be less than 0.4 mm.

The top list of transmission oils was not compiled by price, it was compiled according to the characteristics and reviews of the car owners.

• №1. According to the characteristics of the best oil, Motul Gear 300 is considered to be 75 W 90. The index of the loop of this oil is 60.1, the average wear value is 0.75 mm. The oil film is stable and the power of the device does not decrease. The viscosity parameters are ordinary.
  
• №2. Castrol (Syntrans) is the oil takes the second honorable place. Plus Castrol Syntrans TRANSAXLE is that it provides excellent fluidity at low temperatures. But, inferior oil mobile over the index of the loop. The level of wear. Castrol even exceeds the oil level of the Motula gir 300, in the castrol index index \u003d 59.4.
  
• Number 3. Mobil (Mobilube) is oil, based on test results, has good indicators for the level of protection and wear at large loads. Mobile Mobilub retains low threads for friction under normal temperature conditions. Of the minuses of this brand of oil, the fact that it has a small viscosity index at negative temperatures.
  
• №4. Total Transmission Syn Fe (Total Transmisne Sin Fe) 75W-90 is an universal transmission oil. Has labeling GL4 / GL5. Although it is both universal, but not suitable for some types and types of boxes and other machine design nodes. This Total is equal to 58.8, this value is even better than the oil number 1. But, from the deficiencies of Total Transmission Syn Fe 75W-90 identified: the level of wear leaves much to be better, the viscosity at negative temperatures is not very pleased.
  
• №5. LIQUI MOLY HYPOID-GETRIEBEOIL TDL (Liquimi moth hypoded hetericulibulic TDL) 75W-90 GL-4/5 is a semi-synthetic oil showed excellent ability not to thick even in -40 degrees. Such nodes as the gearbox and gearbox will be glad to such oil. The remaining performance indicators on the middle position.
  
• №6. Zic G-F Top (ZIK Gi-F Top) 75W-90 is synthetics. It has excellent temperature testing indicators. The remaining values \u200b\u200bare medium. Used in box mechanical type (MCP) and leading bridges. Reviews on this oil are good: reduces the noise, is able to withstand limit loads. By the way, it is the opinion that ZiC oil is not forged due to the individual canister, they say to the fakers it is not profitable to make such a container as the Zek oils.
  
• №7. TRANSYN (transin) 75W-90 API GL 3/4/5 from the EUROL factory. This oil has a good indicator at the level of scaling - 58.5 and in terms of wear is also good - 0.94. Transin is distributed.
  

From the above information, we can conclude that when choosing oil for boxes and other transmission nodes, it is worth considering the characteristics of the car. Because if it was necessary to pour the GL4, and you flooded with GL5, then the copper chips appears, which will quickly lead to wear and breakdown of the entire mechanism.

The resource of the clutch bearing is up to 150,000 km of run with good operation. When driving with jerks, throwing clutch pedals, the resource is up to 50,000 km of run. ?

The video shows the tests of transmission oils with a label of 75W90.

Tests of oils 75 W 80.

Lubricating fluids in the vehicle are not only in force aggregates. Threaded parts are present in many components of cars, so the use of different kinds of oils is inevitable. Quite often come across motor and transmission lubricants. As for the last option, it often arises questions in terms of characteristics and viscosity, due to which the choice is hampered.

Popular lubricant

One of the most popular lubrications for the transmission is all-season oil 75W90. It is used by most motorists, since it is different high levels Protection of parts, enlarged temperature range, as well as unique properties fluidity. Replacing lubricants for the manual transmission and the leading bridge occurs much less and less frequently than in the case of a motor, the more important to choose a good durable option.

What is "75W90"?

Acquaintance with transmission oils should always be started with viscosity. Decoding SAE 75W90 is quite simple. In the title three parts, each of which makes it possible to learn about certain properties of the fluid. It begins with the SAE abbreviation, which translated from English means: "Community of automotive engineers." This organization first introduced the classification of motor and viscosity class, which is used to this day.

Comes after SAE code 75w. It shows that when using this fluid in winter, problems with operation should not be with the exception of very strong frosts. It is impossible to specify exactly the minimum temperature threshold, since manufacturers often deviate from the community indicators.

As a result, the average this parameter, in which the leading bridge, and the gearbox is working properly, and the mixture does not frozen, is about -40 degrees.

The last part is the number 90 at the end of the code. It makes it possible to understand when it is possible to use transmission oils 75W90 without loss of viscosity, density and fluidity. There is a serious scatter in this indicator in lubricants of various manufacturers, so we do not have to talk about exact numbers.

Nevertheless, on average, they are all designed to work at a temperature not higher than 35 degrees.

Thus, SAE 75W90 oils are designed to lubricate leading bridges and gearboxes under weather conditions that range from -40 to 35 degrees. You can use them in zones with almost any climate (with the exception of territories with extremely high or low temperature indicators).

Features of oil

The characteristics of the lubricant fluid dependely depend on the class of viscosity, but also from its composition. Regarding the latter it is worth noting that the most popular and qualitative option is an . It is capable of providing the highest possible protection against the wear of the MCPP parts and the leading bridge, creating an oil film on their surfaces, filling irregularities and enveloping intact sections.

Another task of this lubricant is to improve the quality of the gearbox. This applies primarily to the smoothness.

Due to its viscosity, it is easily and evenly distributed in detail, compensating for friction and replacing it to slide. Due to this manual transmission, it works silently and efficiently.

In addition, it allows you to increase heat exchange between oil and processed components: the latter during overheating give part of its energy of a colder fluid.

As for the semi-synthetic mixtures, they are not recommended to use them often. The fact is that mineral components can contribute to the gearbox. Moreover, the liquid of this type has less resistance to frosts, while synthetics reacts perfectly with the cold itself, and sharp drops.

Tests of oils

On the market supplies You can find a large number of most different oils.

Of course, you do not want to take at random and try this or that option, because in case of error it will have to stay for a long time without a vehicle, moreover, having received serious cash costs.

Therefore, the best solution is to see the results of independent testing of automotive experts. There are quite a lot of such studies, but in general they give approximately the same results: only validation samples are changing.

The main task, as a rule, is the study of viscosity at extremely low temperatures, because -40 degrees is only an approximate average value. In the meantime, not only the operation of the transmission depends on this indicator, but also fuel consumption. There are oils of different price categories. As a rule, the cost ranges from 400 to 1300 rubles per liter.

The test samples are placed in conditions of reduced temperature. The most accurate test of transmission oils 75W90 will be carried out in natural frost (Siberian and Northern regions), it will allow to obtain accurate information about fluid behavior in practice. As a rule, the thermometer column is lowered up to 45-50 degrees below zero, as it allows you to learn the minimum threshold of lubrication.

It was tested quite a large number of oil models from various manufacturers. If you analyze a number of studies, it can be argued that some of the best are liquids from Castrol and Motul. They consistently withstand the differences before the fifty degrees of frost. Save the viscosity with the standard threshold to -40 degrees of the lubricant of the company Shell, Ravenol and Liqui Moly. The popular oil transmission Zic 75W90 begins to stack a little earlier, so in the climate conditions sharply continental it is better not to use it. The same applies to the liquids of ENEOS and MITASU manufacturers.

Conclusion

Thus, transmission oils are one of the most important fluids In the car engine. They allow you to reliably protect the details of the leading bridges and gearboxes, making the speed switches smooth and easy. Before purchasing lubricant, you need to study various reviews and tests in order not to harm your vehicle.

Good day to all fans of cars! Today we will talk about lubricant For PPC. And for example, consider the transmission oil 75W90 - one of the most popular in our market. It would seem, on the one hand - it is caught large runs, many times big than grease for motors. But, on the other hand, the liquid works in fairly difficult conditions, and high requirements for its quality and properties are high. Therefore, let's figure it out more about this issue.

Change or not change

There is such an opinion that the lubricant in the checkpoint is not needed. Those. Throughout the service life of the car, it will work on a liquid, filled at the factory. And the only need is a periodic topping. But is it?

Actually, transmission oils Capable to work out large kilometers, up to 100 thousand km. However, it is impossible to say that they can work without replacement. In any box, at least there are rubbing parts, and where there is friction, there is also its products, i.e. Small metallic dust.

In addition, oil in the box works when high temperaturesThis is especially true for automata. And in severe driving conditions, it can be easily supplied. Therefore, it is necessary to make periodic checks of the lubricant state.

• transmission oil for mechanical box changes after 60-70 thousand;
• replace oil in automatic We will have 50-60 thousand.

Naturally, these are averaged numbers. Much depends on driving manner, operating conditions and oil type. For example, synthetics can work out 70 thousand, and semi-synthetic - 50 thousand km.

Oil viscosity

The main characteristic of the lubricant liquid is its viscosity. I am expressed by a simple language, it means the ability of oil to form a protective film on the details, while remaining fluid. Those.:

• at minus temperatures, it should not be too thick;
• when the heat on the street, the lubricant must keep sufficient density so as not to drain from parts.

According to international Classification According to SAE, the oil is assigned the corresponding viscosity index. It is for him to navigate making a selection of transmission oil.

In general, there are 3 types:

1. Summer.
2. Winter.
3. All-season.

It is worth saying that all-season oils are best suited For medium temperature zones, where in winter the temperature is lowered below -20 degrees, and in the summer rises above + 30.75W90 refers to all-season oils. Figure 75, this is its winter characteristic, and 90 - Summer. For example, the semi-synthetic oil of liquida pray 75W90 TDL is able to ensure uninterrupted operation of the PPC at temperatures from -40 OS to +35 OS.

API classification

In addition to viscosity, all oils have certain operational characteristics. They are governed by the API standard and are indicated by GL. For domestic producers This is the marking of TM. For example, transmission sAE oil 75W90 LUKOIL TM-4.

According to this standard, transmission fluids are divided by areas of application and the number of additives against scaling and wear.
In total, there are 6 such classes, however, in modern boxes are only two - GL-4 and GL-5. Let's figure it out that they indicate:

• GL-4 - oils of this class contain up to 4% of additives against scaling, is used mainly in spiral conical mechanisms;
• GL-5 - these liquids contain more non-promotional additivesup to 6.5% and more suitable for hypoid gears.

There is also a mixed type, it is marked as GL-4/5 or 4 (5). In essence, it is a universal lubricant that can be used in different types mechanisms. For example, semi-synthetic Zic GFT 75W90 GL4 / GL5.

Differences GL-4 from GL-5

When it comes to replace the transmission lubricant, you must necessarily take into account the recommendations of the car manufacturer. Because The transition from class GL-4 on GL-5 can lead to unpleasant consequences.

Why so? The fact is that in essence these fluids are intended for completely different working conditions, and most importantly their difference in the amount of anti-promotional additives. In a class with an index 5, they are almost twice as bigger than in 4. And they are based on gray-phosphates, and can be very aggressive to detail made of soft metals. For example, synchronizers in the box, very quickly fail when the GL-5 is filled instead of GL-4.

In general, the 4th grade is used mainly by the checkpoint, while the 5th is more suitable for bridges.

Popular transmission lubricants 75W90

On the market lubricants There are many oils from different manufacturers. Naturally, they differ not only worth, but also properties. Therefore, it is difficult to make a choice in favor of some particular brand. For this, we have prepared a small review based on the reviews of motorists and the largest sales:

1. Zic G-F Top 75W90 GL 4/5. Universal oil that is distinguished excellent operational characteristics and high stability. Contains effective additives, helps to reduce noise in the box. Also, the products of the concern ZEK, pleases the available cost.
2. LUKOIL 75W90 - lubrication from russian manufacturer. Well suited for our climatic conditions is not afraid of low temperatures. At the same time, it is advantageous in terms of cost from foreign marks.
3. g ENERGY - oils manufactured by Gazpromneft at the factory located in Italy. For transmissions, the brand has a G-BOX line, which includes synthetic and semi-synthetic fluids of GL-4 and GL-5 classes.
4. totachi - Japanese brand lubricants. The product line contains mineral, synthetic and semi-synthetic liquids. It is characterized by high-quality additives and good stability when working in different temperature conditions.
5. Hessol - German oils, quite well-proven themselves in our climatic conditions. They are distinguished by high quality and effective package of additives. In fact, among the transmission oils there are from what to choose from. Moreover, both from the products of domestic producers and from foreign brands. But when buying a lubricant, it is important to remember one main rule - you need to choose it in accordance with the recommendations of the car manufacturer's plant. Otherwise, you can cause serious harm to your box. This is all, do not forget to leave comments and read other blog articles - there is a lot of interesting and useful.