On many modern cars (How on passenger carsand on SUVs) are increasingly and more often you can meet cVT variator Instead of "classic" hydromechanical automatic transmission. The fact is that the variators, first of all, provide improved dynamic indicators, more economical, and this box is considered the most comfortable.
We note, like any other unit, the variator also has its pros and cons, while many drivers prefer exactly this type automatic transmissions. More from the quality of service and compliance with the rules during operation directly depends on the service life and service life of the variator.
In this article, we will look at how to change CVT oil when you need to do how the oil change is performed in the variator box, and also to pay attention to the selection lubricating fluids etc.
Replacing the oil in the variator: when you need to change and why
Let's start with the fact that the oil change in the variator is similar to the same procedure in the case of conventional automatic transmission. However, it must be remembered that the regulation of oil replacement and tolerances in relation to the transmission fluid itself for variastors differ from hydromechanical machines.
So, it is important to take into account that the variator box differs from automatic transmission and robots of the RCPP. This transmission is extremely sensitive to the loads and quality of oil. In fact, this means that such aggregates are not designed for aggressive riding and severe operating conditions.
If we consider that even ordinary travel around the city in start-stop mode, slip, sharp accelerations and stops can already be considered difficult, then it becomes clear that the box needs to be given for more attention.
As for the oil, the transmission fluid is inclined to lose its properties with mileage, contaminated by the products of wear, the additives are triggered, etc. In other words, even if the manufacturer claims that the box is maintenanceable, it does not mean that it really is.
As practice shows, experienced professionals recommend changing oil and oil filter In a box, a variator, automatic transmission or double-grip robots every 40-50 thousand km. Run. The main reason is all specified aggregates have a hydraulicone, which is complex and expensive device. In this case, dirty oil can derive this element in order.
It is also worth noting that the deterioration of properties and pollution has a destructive effect on other parts and variator nodes (belt, pulleys, cones, etc.). Taking into account the fact that repairing the variator is difficult and very expensive, the oil change is the necessary and responsible procedure.
How to change oil in cvt
So, having understood with the need for regular service, let's look at how to replace the oil in a box of the variator. It is not difficult to guess that in this case you can go in two ways:
- change the oil in the variator on the service station;
- carry out the replacement of oil in the variator box independently;
As for the methods of replacement, in certain cases perform: partial (incomplete) oil replacement in the box, full replacement (hardware), full replacement by the strait method.
- Partial replacement of fluid in the variator involves an update (refreshment) of oil. If simply, part of the lubrication merge, after which you need to pour exactly the same amount as it has been merged before, then adjust the oil level in the variator.
To accomplish such a procedure, you must first warm up the checkpoint, passing on a car 10-15 km. Then you need to raise the car on the lift or drive to the observation pit. Next, the drain container is substituted, the drain plug and the liquid is flipped off. Now the plug can be spinning.
Then the same liquid is poured into the box (manufacturer, properties, tolerances), like that that was filled earlier. This approach will avoid the risks of mixing transmission oils and possible consequences.
It is important to understand that this method it is possible to update the fluid in the variator only by a third or a little more, from the total volume of fluid. In fact, fresh liquid is mixed with an old, which does not merge from the unit through the plug.
To achieve a complete replacement, such a procedure must be repeated at least 3-4 times (with an interval of 500-700 km). It is also recommended to perform a double replacement of all automatic transmission filters (after the first approach and after the last), rinse the pallet.
- Full oil replacement in the variator is performed using a special installation. The whole replacement involves the method of displacement when new liquid In fact, squeezes old from the checkpoint (substitution).
The device is connected to the radiator nozzles of the cooler cooling system, then fresh liquid is supplied under pressure, which displaces the work. The device has viewing windows so that the process of pumping can be controlled by determining the degree of purification of fluid color. The advantage is the most complete oil update in the variator.
Also, the hardware replacement allows you to perform the procedure for washing the variator before downloading the oil in the box. It can be used both ordinary oil and special flushing compositions. Then produced full replacement Oils in the variator on the machine.
Replacing the oil in the variator with their own hands
To change the oil in CVT without the use of special equipment, you will need to prepare:
- fresh oil in due volume (in advance of the manual, you need to know what lubrication to pour and how many liters to pour the variator to a box on a particular auto model).
- rags, clean rags, as well as precipitative tanks, a set of tools;
- laying a pallet and / or sealant, oil filter box-variator.
- Before replacing the box, you need to warm up well (drive around 10 km), after which it is possible to put the car on a flat surface in the garage with an observation pit or raise on the lift, call on the flight, etc.
- Next, the engine must be drowning, and then wait about 60 minutes, while all the oil stalks back to the pallet. We recommend reading the article on how the variator is arranged and what are the types of variable boxes. From this article you will learn about the types, features and differences of CVT.
- Now, under the drain plug, you need to put the container, then the plug is twisted. You can also remove oil Prope from the box.
- After the liquid ceases to flow, you need to remove the pallet, twisting the corresponding bolts. The pallet is then neatly removed, its washing with the cleaner is carried out, the chips from the magnets, etc. is removed.
- Also on many variastors it is desirable to remove the hydraulicock by turning off solenoids. We strongly recommend pre-examine information on the removal of the valve plate on a specific car model. Hydbot can also be washed.
- After the elements were removed and cleaned, you can proceed to replace the internal filters of the variator. After replacing the hydraulicock is installed in place, an external filter is installed, the purified and dried pallet is mounted.
- After assembly, you need to check the combination of the pulitator pulley with a hydroblock cylinder. To do this, you need to switch the selector in the cabin in different positions.
- If everything is in order, you can pour fresh liquid (oil) into the variator. To do this, find a filling hole. At the end, it remains to check the level of PCU and adjust it with such a need. Do not reduce and exceed the recommended oil level in the variator!
The following are IMHO and data provided by the largest producers of liquids for the variator. I am not responsible for the accuracy of the information provided by them.
Each right to make their own conclusions and decide what fluid is pouring into your variator.
To carry out this analysis, they prompted controversy relative to the liquids for SUBARU variators.
This article is focused on SUBARU variators, however, it can also be applied to the variasts of other autocontracens.
Clarifications.
690t - 690th Variator, which aggregates with FA20DIT
690a - 690th variator, which goes on outbacks, with fb engines
580A - the 580th variator, which goes on cars with FB engines.
1. Marketing Subaru.
Since 2009, Subaru began to massively introduce variators into their cars.
And much information about the fact that the liquid is unique, no other is suitable and other blah blah blah.
2. Background.
A year ago, I began to understand what kind of alive is actually applied, but I didn't bring it to the end, since in the case of a Turbov Forester, the cost of 1 liter of the original is ~ 750r and there was neither time nor the desire to bother with this question.
Recently, I ran into a challenge of the box, which was quickly solved and my discussion with Mikhail (who changed a solenoid) on the topic of Variator Jiji prompted me to bring the question to the end. Below I will talk about what and how I did.
3. Surface google.
Studying the experience of using third-party oils, I did not meet any interconnection between the use of native, or third-party oil, with the number of variator breakdowns.
Moreover, noticed interesting fact: for example, in the US, many first oil replacement do after 80-100 thousand miles! Below he is an analysis after 82.9 TCM - its properties have practically not changed, only a lot of dirt in it.
In the same Canada, Subaru dealers sell the original alive on $ 60 per liter! As a result, the people actively use third-party liquids.
4. Collection of information.
From the very beginning I did not believe that a special formula was developed for Subaru. A very small automaker so that someone from the manufacturers of lubricants released a unique alive for her.
However, in order to be some kind of starting point, I decided to find a chemical analysis of my native clad.
I did not find anything on the expanses of Runet, in connection with which I went to search for the forums of other countries.
After some time, I found a chemical analysis of the Subaru SOA748V0200, which in the USA is used as high torque, for 690T variators (our analog K0421Y0700).
The difference in fresh and old liquid SOA748V0200
Laboratory Analysis of Fresh Fluid SOA748V0200
Laboratory old liquid SOA748V0200
If you bring everything into the table, it will look like this
As we see, the physical properties of the liquid, such as viscosity, did not significantly undergo changes.
The outflow temperature of the old liquid has grown slightly.
Bohr has become a little less (one of the main functions of the boron is the role of a relaxed dispersant), therefore, its decrease is logical. The amount of phosphorus and calcium remained at the same level, and the increased elements, such as aluminum, iron are explained by the wear of the mechanical part of the variator.
However, the most interesting thing is in the outflow temperature, which has a new 204 ° C, which indicates that before us ... simple hydrocracking, without PJSC and Esthers, with the minimum package of additives ...
The next step is to search for information about the characteristics of liquids of different manufacturers.
All information I turned out in a single table
In this table:
1. Last 4 - dubious oils, Totachi and Mitasu levels.
For example, AMALIE UNIVERSAL SYNTHETIC CVT FLUID.
It has a flash point of 190 ° C, but at the same time the temperature of frozen -51 ° C, and so does not happen.
2. Thousands of eminent brands have a flash point greater than the original Zhij Subaru, which indicates that they are used by PJSC additives and such a level of level higher than our own.
The most close on the characteristics to Subaru High Torque SOA748V0200 turned out to be a Havoline® Fully Synthetic CVT Fluid liquid.
By the way, notice an interesting feature: Subaru does not supplies in the USA, JXTG Nippon Oil & Energy, which goes like the K0421Y0700, and found another manufacturer in the US, who didn't even bother to paint it in red!
I do not know what it is connected with: Perhaps the American FAS was taught by Subaru's voice and forced her to order a story from a local oil refinery, and perhaps so cheaper.
At the same time on the Havoline website it is indicated that their Havoline® Fully Synthetic CVT Fluid liquid has compatibility with all CVT Subaru boxes:
Subaru Lineartronic CVTF (PN K0425Y0710)
Lineartronic CVTF II (SOA748V0200)
CV-30.
High Torque Cvtf.
E-CVTF.
Havoline - by itself a pretty serious company and perfectly understands that if a resident of the United States fell into the box of their product and a breakdown will have a breakdown, then they are shut-off on ships.
5. And what about us with liquids for 580a and 690a?
Yes, everything is about the same. Here is a waste of fluid with a mileage of 60 thousand miles (96,540km)
And if you look at working with even big mileage?
For example, 123.250 miles (198.309 km!)
We reduce all data to the final table
Based on this table, we can conclude that differences:
- Atmizhiri calcium is one and a half times more.
- Atmizhiri Bora is 2.5 times less.
Everything. All other characteristics are identical.
From changes in characteristics:
- Flash temperature rises.
Flash temperature.
As we noticed compared to the turboil, it increased in the process of aging oil.
And if you have a correlation of the temperature of the outbreak of atmorzy, then you can estimate that most likely, in the database we had the same 204 ° C, that is, hydrocracking without a PJSC.
6. Results.
If we talk about the physical properties of the fluid, then the liquids subaru kinematic viscosity at 40 ° C is higher than that of others.
Probably this requirement so that there is no chain slipping between cones. Although ... After all, viscosity at 100 ° C is the same as other liquids or lower.
But most likely, it is just a lack of cheapest oil.
By the way, notice, the viscosity of the Identity of the oils 0W-20!
It all makes it an idea that the liquid of the SUBARU variators is the most simple, the cheapest and use of any liquid of any brand manufacturer in most cases above the quality, but not lower.
If you really do not want to risk, the owners of 580A / 690A variators can boldly pour themselves Subaru High Torque K0421Y0700, which is almost identical to the K0425Y0711 (except for a slight difference in the additive package) and costs ~ 2 times cheaper.
Unless I strongly recommend not mixing with your old aliens, but by the method of complete replacement.
Generally, I am an opponent of partial replacement and consider partial replacement In the same perversion than partial replacement in gearboxes or engine.
However, I do not advise you to pour the K0415YA090, for there is a confirmed case when the use of this fluid led to slipping chains in cones. Unfortunately, I have no laboratory analysis of this fluid and I can not say about possible causes.
7. To whom this topic is interesting and who would like to contribute to it, I will be grateful if you give a fluid laboratory analysis:
K0421y0700 (ready to provide fresh oil)
K0425y0711
To clarify their properties.
Probably my division of oils by kinematic viscosity Error: if these oils it will be at ENEOS and Idemitsu - this will mean that they can be safely poured as a cheap analogue, including in the 690T variator (but it is not exactly). To reduce the risks of problems, I recommend in 690T to fill as analogs exclusively fluid:
1. Havoline® Fully Synthetic CVT Fluid (closest to the original, stated compatibility with High Torque)
2. Pentosin CVT 1
3. Redline Non-Slip CVT
For my shoulders more than hundreds of moves and dozens of gearboxes. I also have an education in the field of engineering, and over the years of the years I learned something to deal with the worse academician. Reviews of motorists only confirm this.
This time I decided to talk about such a difficult topic as an oil for the variator in modern cars Put the CVT box, which is intended for such actions:
- Lubricates the pulleys in the car;
- It takes a lubricant of differential;
- Heat is also held;
- The grease for the variator is capable of maintaining the normal temperature in the gearbox.
Lubricating mixture for the variator is made almost the same as the usual motor grease. The essence of stepped hydrocracking technology.
- Non-positive characteristics. The best protection of the automotive differential from the formation of chipping and scaling is ensured;
- Viscous. Lubrication quickly thickens at elevated temperature.
- Lubricating oil in the box-variator should change on time, as such oil quickly loses its properties.
- It occurs its oxidation in the work, the value of viscosity is also changing.
Basics of the basics
The diverse requirements of modern transmission to lubricant can only be satisfied if from the point of view of engineering use lubricant Used in the required quantity under permissible working conditions in the transmission. Therefore, it is important to pay close attention to the relevant Specifications and OEM approval when repairing the gearbox and replacement of transmission oil.
Types of transmission oil
Thanks to its position of one of the leading developers and suppliers of lubricants in the automotive industry, FUCHS offers the largest range of transmission oils. I would recommend to acquire the oil of this brand.
Liquids for variator and manual transmission
In modern mechanical gearboxes, in addition to low wear, lubricant performs a wide range of tasks and has an effect on comfort when driving, since the lubrication has a decisive effect on switching quality.
For axial gear, it takes particularly high wear protection (AW) and anti-promotional properties (EP). This is possible only with highly concentrated sulfur additives, so classic-type oils are not suitable for clutch or synchronization.
In addition to high wear protection, oil drive oil must have good aging properties - consider it. There must also be achieved by longer intervals between the replacement and service life. Thanks to the more stringent directives and standards relating to the choice, CVT oils are becoming more and more dense to optimize the efficiency of the transmission.
Liquids for automatic transmissions (ATF)
Important for the functionality of the automatic transmission is the friction coefficient when opening and closing with oil-lubricated lamellar clips and brakes in automatic transmissions. This is exactly what you need to accurately adjust the oil for automatic boxes Transmissions.
Decisive to select automatic transmission oils are OEM specifications.
Transmission oils for stepless transmissions (CVTF)
CVTF oils are very similar to ATF oils, but in addition to properties of ATF. They are specially designed taking into account the properties of the friction necessary for contact between the metal parts of the friction (the variator to the chain / transmission chains). Since strong hydraulic pumps are commonly used in CVT transmissions, lubricant CVTF must have particularly good foam properties and air release properties to prevent cavitation in the pump.
Double Clutch Transmission Oils (DCTF)
Double-clutch transmission fluids is a compromise between the characteristics of high MTF and effective ATF. In addition, the use of hydraulic pumps increases the requirement of stability.
Types of variators
In addition to the variasts described, below is given. short description The main types used in passenger cars:
CVT ribbon type: also called CVT "Push-Type" or "Van Doorne".
Essence of the system
The belt is clamped in pulleys at a pressure of up to 4 tons and "pushed" through its pulleys. Compressive loads on separate belt plates vary depending on the size of the engine, but they are quite high, starting with 120 pasks for a small four-cylinder engine.
CVT chain type: also called "tension". This CVT also uses clamps.
Two main advantages of design in front of a variator with belt transmission:
Toroidal variator: it is quite complicated. Imagine that you wear a cone on the pottery circle and form it the parties until they are spinning. Now place two torus face to each other with a disc-shaped roller between them, in contact with both. You got a toroidal variator.
Since it does not relieve straps or chains or clamping pulleys, a toroidal variator can transmit greater torque. You will not find a toroidal variator in Russia - at least not now. It occurs only on some Nissan cars sold in Japan.
Although classrooms are cool and useful, there are many reasons for which they are not yet put in each car:
- The variators are much more complicated and more expensive in production than they look in the pictures on the Internet. Creating high clamping forces that make them work is a problem for hydraulic Systems and lubricants. Details must comply with accurate specifications in manufacturing and assembling. Various licensed payments also increase costs for automaker.
- Durability (or rather, her absence) - essentially became a large stumbling block. Slision of the belt is Achilles of the Step Fifth. If the belt slides even on a tiny pulley, then the transmission is destroyed.
- Some drivers, they simply do not like. Most people have no idea what they have a gearbox, but usually they expect the engine to publish certain sounds when working and no other. The car with the variator sounds almost like a motor boat. When you get down in it from the slide, the engine accelerates to high speed and starts to buzz until you stop. And there is no transmission switch such a system, so there will be no changes in the engine tone, to which you are accustomed to conventional transmissions. For this reason, the owners of cars with variators often return their own, thinking that the gearbox slipped or something broke.
- The growth of fuel economy is currently consistent with the usual indicators in the transmission.
Some automakers believe that they can get more economical systems at the expense of a variator with six or seven speeds.
Future of variators
However, the variator has its loyal supporters. Nissan, for its part, adheres to Extroid CVT on its 245th high Murano and plans to four times the use of CVT in the next few years. As for automobile owners of cars with CVT, Nissan North products specialist Tony Pearson admits that manufacturers and dealers should do more in the development of cars with CVT.
Couple of famous oils for CVT
Mobil 1 Synthetic Gear Lube
Partially due to synthetic basic oils1 Synthetic Gear is the most stable in a wide range of temperatures. It remains fluid to -50 degrees Celsius, but maintains its viscosity even in high-performance differentials with high performance and rear bridges, including differentials with limited slipping.
Package additives 1 includes sulfur and phosphorus, but does not corround yellow metals, such as copper cells. Suitable for all applications of transmission oils for which aPI class GL-5. It prolongs the replacement intervals and at the same time reduces the wear due to the phenomenal stability to the shift.
Pros:
- Increased replacement intervals.
- Excellent cold fluidity.
- Soft contamination additives.
- Excellent shift resistance.
Minuses:
- Not suitable for the use of GL-4.
- Not for the most extreme applications.
Red Line MT-90
To improve the operation of the synchronizer mechanical gearboxes required transmission oil with reduced slightened. Red Line MT-90 is synthetic transmission grease API GL-4, protecting synchronizers and gears from wear. Her additive package also allows you to easier to switch at low temperatures.
Like all Lubricants GL-4, in MT-90 there are no sulfur additives that can freeze and damage copper components mechanical box Transmissions. Its base margin is based on the air, therefore oil is resistant to pressure surges with most operating temperatures.
RESULTS
- In the market there is Oklo hundred different oils For CVT variators.
- The variators are much more complicated and more expensive in production than they look in the pictures on the Internet.
- Most people need help choosing oil, as they have no idea what they have a gearbox.
- The growth of fuel economy is currently consistent with the usual indicators in the transmission. Improvements in stepped gears reduced the gap.
Oils for automatic transmissions differ from lubricants intended for traditional mechanics. Let's figure out what transmission oils for CVT-boxes are represented as they are divided, as well as what requirements are presented to this type of lubricants.
Conditions for CVT Oils
The automatic type of transmission slowly, but confidently displaces the mechanical options from the market. The cost of automata production is reduced, and their reliability and durability increases. In combination with comfort when driving on automata, compared to manual gearboxes, this trend is quite logical.
Variators (or CVT, which in adapted translation means " sainted boxes Gears ") Since their appearance, they did not have any serious changes in the design plan. The reliability of the belt (or chains) increased, increased efficiency and increased the overall resource of the transmission to critical wear.
Also hydraulics, in view of the decrease in the size of the functional elements and increase the load on them, has become a high accuracy of the operation. And this, in turn, was reflected in the requirements for CVT oils.
In contrast to intended for use in conventional automata, variatorial lubricants work in more specific conditions.
First, they must completely eliminate the possibility of their enrichment by air bubbles and, as a result, the appearance of compressibility properties. Hydraulics, shifting and spreading plates during the operation of the variator, must be opened as clear as possible. If because of bad oil Plates will start working incorrectly, it will lead to a drawing or vice versa, excessive belt tolerance. In the first case, due to the increased load, the belt will begin to stretch, which will lead to a decrease in its resource. With insufficient tension, it can start slipping, which will cause the wear of the plates and the belt itself.
Secondly, lubricants for CVT must simultaneously and lubricate the fuel parts, and eliminate the possibility of slipping the belt or chains on the plates. In ATF oils for traditional automata, slight slipping of frictional at the time of switching the box is a normal phenomenon. The chain in the variator should work with a minimal slip on plates. Ideally - in general without slipping.
If the oil has a very high lubrication, it will lead to the busting of the belt (chains), which is unacceptable. Such effect is achieved due to the use of special additives, which, with high contact loads in the friction pair, the belt-plate lose part of its lubricating properties.
Classification of transmission oils for variators
There is no single classification of CVT oils. There are no structured, general standards covering most of the variator oils, such as, for example, in well-known SAE classifiers or APIs for motor lubricants.
Oils for variasts are classified in two ways.
- Marked by the manufacturer as a lubricant intended for specific boxes specific models Auto. For example, CVT oil for many variatorial cars Nissan. Nissan labeling and NS-1, NS-2 or NS-3 specification. Honda car variators often poured honda oil CVT or CVT-F. Etc. That is, CVT oils are marked with an automaker brand and admission.
- Marked only by admission. This is inherent in CVT oils, not indicated as lubricant for concrete brand Auto. As a rule, the same oil is suitable in several types of variastors that were installed on different brands and auto models. For example, CVT MANNOL Variator Fluid transmission oil has more than a dozen tolerances for American, European and Asian cars.
Important condition proper selection Oils for the variator is the choice of the manufacturer. As practice has shown, there are quite a few oils on the market for a variator of dubious quality. Ideally, it is better to acquire branded lubricants official dealer. They are faked less frequently than universal oils.
The variator began to twitch and the first thought that comes to mind is to replace the oil in the gearbox. If you do not know how to use the variator - learn. In this article, we will analyze which transmission fluid can be poured into Outlander, Cascai, Teana, or any other model. Naturally, everyone car brand. There is own oil for CVT, which manufacturer strongly recommends using in their aggregates. And honestly, I do not advise you to neglect this rule. Let's proceed.
Nissan Variator Oil
Original transmission nissan liquid Range of prices from 3300 to 5000 rubles. NS-1, NS-2, NS-3 Read the instructions and you will know exactly what to pour.
Suppose to Casca, depending on the model, Nissan recommends pouring different types ATF:
- J10 pouring need NS-2
- Cascai +2 JJ10 also NS-2
- Nissan Qashqai J11E already NS-3
Transmission Mineral "CVT NS-1", 4l: Kle50-00004
Transmission synthetic "CVT NS-2", 4l: Kle52-00004
Nissan CVT. NS-3.4l: Kle53-00004
Original oil for variator on Nissan
Zhiy for Mitsubishi.
On consumable liquids for mitsubishi cars On our site already have all the information. I recommend that you follow this, if you found your car, make a bookmark and it is still helpful for you!
Transmission fluid Mitsubishi.Honda
For the Honda variator, FIT, for example, only two original CVT-F and HMMF oils are suitable, no other units like.
Original oil for HondaTyota
As, the rule, the owners of these cars serve their favorites from the official, but still - here are yours original oil For variators.
Toyota Original Oil for variatorAlmost any company has its own oils for variators with the necessary tolerances. If you trust some kind of brand and confident that the oil is not a fake - you can pour. But remember all responsibility for your box you yourself. If you plan to replace the oil in the CVT box on your own - here's detailed! Successful operation.
