ATTENTION!
IT IS NOT ALLOWED TO MIX ATF TYPE T AND TYPE T-IV (JWS 3309).
(when changing to ATF T-IV, do only full replacement oil in automatic transmission)
Toyota recommends the use of oil for Toyota automatic transmission ATF Type T-IV where the use of earlier types of oil is recommended - Toyota Type T-II and T-III.
From the above table it can be seen that it is permissible to use the next generation of ATF, that is, everything that is of a higher class. Reverse replacement in the direction of lowering the class is unacceptable. Dexron III replaces Dexron II / Type T-IV replaces T-II
Newest generation transmission oils - TOYOTA ATF WS (JWS 3324)
Fully synthetic low-viscosity fluid, mandatory for use in cars for which it is indicated in the "User's Manual", should not be used in the absence of such a recommendation. Not interchangeable with other types of TOYOTA ATF Type T-IV, Dexron fluids. Since this type of oil absorbs moisture, it can damage the transmission. Therefore, it is recommended to use an open container only once.
General principles when changing oil in automatic transmission.
Do not mix oils of different grades. All settings of modern automatic transmissions (after 2003) take into account the specifics of the operation of OEM oil. And these are not only those characteristics that are described in the technical specifications, but also how these characteristics change during heating and "aging". Indeed, with oil contamination, the lubricating, heat dissipating and frictional properties of the oil change. If you are unsure of the type of old ATF oils filled in the automatic transmission, make a complete oil change.
Universal gear oil AISIN AFW +
Universal fluid for automatic boxes gears (ATF) from Japanese company AISIN SEIKI CO., LTD, which is part of the TOYOTA concern. AISIN is the largest designer and manufacturer of automatic transmissions and CVTs. Based on its experience and the most advanced technologies, AISIN has developed a series of specialized ATF and CVTF fluids for the service market.
The manufacturer recommends changing the Aisin oil in the automatic transmission at least once every 20,000 km or once every 2 years, whichever comes first. In this case, priority is given to a complete oil change in the automatic transmission using a special installation.
Applicability
Toyota Type T, T-II, T-III, T-IV, DEXRON II, III, WS
Nissan Matic Fluid D, J, S
Honda Ultra ATF, Ultra ATF Z1, DW1
Mitsubishi SP-II, SP-III, SK, J2
Mazda ATF M-3, ATF M-V, ATF F-1, ATF JWS3317
Subaru ATF, Opel Original ATF 09117046
Isuzu BESCO ATF-III, BESCO DEXRON II-E
Suzuki Besco DEXRON II-E, ATF 5D06, ATF 2384K, ATF 3314, ATF 3317
Daihatsu Amix ATF Multi, Amix ATF DIII-SP GM DEXRON II-E, DEXRON III
FORD MERCON, MERCON V
Hyundai / Kia SP-II, SP-III, SP-IV, Matic-J RED-1, MX4 JWS3314
Mercedes benz 3AT / 4AT / 5AT
Toyota WS is used as CVT oil in many Toyota and Lexus hybrids, such as the Prius.
Transmission oil Toyota ATF WS has a long service life, sometimes it is interpreted as life-long. However, like any petroleum product, the liquid is oxidized, which leads to an increase in its viscosity, and as a result - to an increase in fuel consumption. Oxidized liquid is unable to resist high-temperature deposits. Toyota replacement ATF WS can be produced even when there is no slug on the box, which is usually interpreted as "maintenance-free" automatic transmission.
The name Toyota WS stands for World Standard, i.e. worldwide standard automatic transmission fluid. Global trend in automatic transmissions - viscosity reduction working fluid, which reduces losses on internal friction and leads to a reduction in vehicle fuel consumption. In this regard, the viscosity of Toyota ATF WS is lower than that of liquids of previous classes from Toyota and is in working condition about 6 cSt (1 cSt is the viscosity of water).
Automatic transmission fluid Toyota ATF WS complies with Toyota ATF WS specification
This fluid is manufactured by Exxon Mobil in Japan.
Each automotive concern tries to ensure that technical fluids do not harm the units. In the event of a breakdown, it will be difficult to prove to consumers that the manufacturer is not at fault.
This will cause irreparable damage to the brand's reputation. For this, there are specifications and approvals, as well as oils produced under the name of auto concerns: such as Toyota ATF WS.
Car manufacturers do not have to open refineries. You can simply order the required product from recognized artisans.
Toyota has signed a contract with the American oil producer Exxon Mobil Corporation. Plant producing lubricants for Toyota, located in Japan.
Appointment Toyota Genuine ATF WS
The transmission fluid was developed jointly by Japanese and American engineers for Toyota cars, Lexus, as well as other models produced on these platforms.
The composition of the oil works ideally in automatic transmissions Japanese production: Aisin. Model year restrictions apply: Toyota factory approval only applies to models built after 2004.
In addition to automatic transmissions, Toyota ATF WS oil is used in variators. This type of transmission is installed on most hybrid cars Toyota: Prius for example.
This fluid has been used successfully in Toyota sequential transmissions, although this is not the main purpose. It's just that the operating conditions of the automatic transmission units are similar to the loads in sequential mechanisms.
Since the abbreviation WS stands for World Standard, this transmission fluid can be poured into automatic transmissions and variators on all Toyota and Lexus, regardless of the production market.
Japanese, European, North American and African versions are equally compatible with ATF WS. In addition, the transmission can be used in other brands of cars, if the characteristics of the oil are the same.
Positive properties of Toyota ATF WS
The main virtue of this oil is long term service. Potentially, many users perceive the transmission as irreplaceable.
If you have purchased a used car, or are going to operate the car longer than 100-150 thousand km, the fluid in the automatic transmission or variator must be changed.
Important! Even if your engine does not have a traditional transmission oil dipstick, there is still a way to replace it.
- the oil can work for a long time under conditions of high load on the gearbox: frequent and abrupt shifts practically do not change the characteristics of the fluid;
- shifting is smooth, without negative impact on mechanisms, regardless of the type of gearbox (automatic transmission, variator, sequential);
- a set of special additives that reduce friction and wear of metal parts of the shift mechanism;
- universal temperature regime: practically has no restrictions on the climatic zones of the Russian Federation;
- manufacturers have managed to combine various qualities, which are usually antipodes: low viscosity and high adhesion;
- balanced content of esters reduce frictional loads and reduce wear of gear teeth;
- the creation of an effective package of additives based on phosphorus and boron allows you to save on production costs;
- the lubricant contains calcium: the transmission fluid has good detergent properties;
- low capacity for internal oxidation and protection against corrosion of gearbox parts.
TO positive qualities can be attributed to the form of release. Most popular packaging: 4L tin can. Toyota ATF WS code 08886-02305. 
By purchasing such oil, the buyer can be almost 100% sure of its authenticity.
Main characteristics and tolerances
- the base is pure synthetics;
- viscosity index = 171;
- kinematic viscosity measured at 40 ° C = 23.7;
- kinematic viscosity measured at 100 ° C = 5.4;
- loss of viscosity characteristics at low temperature (solidification) = - 44 ° C;
- dynamic viscosity according to Brookfield at the beginning of operation (dough temperature: - 40 ° C) = 9070;
- impact on non-ferrous metals - below average;
- sulfur content of the composition is less than 0.06%;
- content in additives (mass fraction): phosphorus = 271;
- content in additives (mass fraction): boron = 62;
- content in additives (mass fraction): calcium = 114.
There is practically one admission, it comes from the name: Toyota ATF WS. All other specifications from Toyota do not fit.
Analogues of transmission oil Toyota ATF WS
Of course, almost all manufacturers technical fluids produce similar compositions, we list the main ones:
- Aisin ATF AFW +
- ZIC ATF MULTI
- Castrol ATF Multivehicle
- Liqui Moly Top Tec ATF 1200
- Petro-Canada DuraDrive MV Synthetic ATF
- Idemitsu ATF Type-TLS
However, the closest in terms of characteristics is the transmission Toyota fluid ATF type T IV. In fact, this is the predecessor of ATF WS, which was produced for filling in gearboxes and variators. previous generations Toyota and Lexus (up to 2004). 
Despite the similarity of parameters, Toyota ATF T IV does not have ATF WS approvals, but continues to be produced to this day. Considering the survivability of Toyota and Lexus cars, this transmission will be in demand for a long time.
