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What ATF to use for Toyota?
(interchangeability of Dexron, Type T and other ATF) v.3.0


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Eugenio,77
mail@toyota-club.net
© Toyota-Club.Net
Apr 2003 - Jan 2017


Introducing an updated version of our article dedicated to the interchangeability of different ATF types. It takes into account changes of transmissions and oils occurred in recent years and changes in logistics. Let's start with the answer to the question posed in the title, and then look through the main Toyota transmission fluids.


RecommendedAcceptable to use, based on experience
D-IIany ATF meets Dexron II / III specifications
Type Tany ATF meets Dexron II / III specifications
Type T-IIany ATF meets JWS 3309 specification or Dexron II / III
Type T-IIIT-IV or any ATF meets JWS 3309 specification
Type T-IVT-IV or any ATF meets JWS 3309 specification
WSWS or any ATF meets JWS 3324 specification

ATF D-II
P/N: 08886-00305 (4L), 08886-00306 (1L), 08886-81006 (1L)
Specification: JWS 2318K

Density, at 15°C0.866
Flash point, °C185
Boiling point, °C316
Pour point, °C-40
Viscosity, at 40°C, cSt35.1
Viscosity, at 100°C, cSt7.1

ATF specification for japanese domestic market models since 1980s (transmission series A13#, A24#, A54# , A4#, A34#, A44# etc.). At all overseas markets for the same models should be used any Dexron II / III (without mentioning the "D-II").

There is no technical meaning to use exactly this fluid. Any ATF meets Dexron II or III specs should be used.

ATF D-III
P/N: 08886-01605 (4L), 08886-80506 (1L)

Density, at 15°C0.861
Flash point, °C156
Boiling point, °C-
Pour point, °C-
Viscosity, at 40°C, cSt32.3
Viscosity, at 100°C, cSt7.0

This fluid is not mentioned in car repair or maintenance manuals because it appeared much later after end of production of models with the classic transmissions. Available at all markets as the genuine replacement of the obsolete D-II.

There is no technical meaning to use exactly this fluid, but in some conditions D-III may be more easy available and more cost-effective than other ATF.

ATF Type T
P/N: 08886-00405 (4L)

Density, at 15°C0.870
Flash point, °C186
Boiling point, °C-
Pour point, °C-55
Viscosity, at 40°C, cSt32.4
Viscosity, at 100°C, cSt7.4

Used in 1988-2002 for all-wheel-drive automatic transmissions A241H and A540H to improve center differential lock coupling operation.

Available at domestic market till now. At overseas markets Type T-IV is semi-officially considered as substite for Type T (by TSB 1999), but at the T-IV canister explicitly stated - "not recommended for AT where Dexron II/III or Type T are required".

Long-term local experience has shown that these transmissions work well using ordinary Dexron type ATF without any degradation of all-wheel drive performance.

The market proposal of Type T is too small and there is no sense to seek and purchase exactly this fluid. Using Type T-IV as substite may cause damage of old enough transmissions, so it is best to use less aggressive fluids meet Dexron IID or IIIF specs.

ATF Type T-II
Used in 1990-1997 for some electronically controlled ATs (series A34# at FR sedans, for example). Officially replaced with T-IV.
In practice - successfully replaced with any traditional ATF. Using Type T-IV as substite may cause damage of old enough transmissions, so it is best to use less aggressive fluids meet Dexron II or III specs.

ATF Type T-III
Used in 1994-1998 for some ATs with Flex-Lock-Up (some A34#, A35#, A541E, A245E). Officially replaced with T-IV.

ATF Type T-IV
P/N: 08886-82025 (5L Euro), 08886-81015/01705 (4L), 08886-81016 (1L), 00279-000T4 (1q USA)
Specification: JWS 3309

Density, at 15°C0.852
Flash point, °C185
Boiling point, °C316
Pour point, °C-48
Viscosity, at 40°C, cSt34.0
Viscosity, at 100°C, cSt7.3

Main specification for all Aisin AT introduced since 1997 (U44#, U34#, U24#, U14#, early U15#, A65#, later A24# E, A34#).

At the beginning of the 2000s, instead of the then rare and expensive at local market T-IV, traditional Dexron III ATF was successfully used here. Later, independent oil producers established of production of 3309 spec ATF and universal ATFs. Then the delivery of the genuine T-IV significantly increased, and as a result it has become the most accessible and cheap ATF meet 3309 spec - so owners of other cars with the similar Aisin AT purchased it instead own genuine ATF (Audi, Chevrolet, Daewoo, Fiat, Ford, Mazda, Opel, Porsche, PSA, Renault, Saab, Suzuki, VW, Volvo etc).

Full replacement of T-IV with newer ATF WS is technically acceptable for most recent AT, however it is inappropriate for worked long enough transmissions due to possible consequences.
Using of Dexron spec ATF instead of T-IV does not entail negative consequences, but in modern conditions it is not reasonable.
Equally true solutions - to use the genuine Type T-IV fluid or to use any ATF meets JWS 3309 specification - depending on the circumstances.

ATF WS
P/N: 08886-02305 (4L), 08886-00289 (1q USA), 08886-81210 (1L Euro)
Specification: JWS 3324

Density, at 15°C0.850
Flash point, °C175
Boiling point, °C316
Pour point, °C-
Viscosity, at 40°C, cSt23.0
Viscosity, at 100°C, cSt5.5

The main specification since 2004 used for modern 5/6/8-speed transmissions (series U15#, U66#, U76#, A75#, A76#, A96#, AA8#, AB6#). This is substantially less viscous fluid compared to previous T-IV.

The market proposal of WS is sufficient. Equally true solutions - to use the genuine WS fluid or to use any ATF meets JWS 3324 specification - depending on the circumstances.

CVT Fluid TC
P/N: 08886-02105 (4L)
Specification: JWS 3320

Density, at 15°C0.850
Flash point, °C175
Boiling point, °C316
Pour point, °C-50
Viscosity, at 40°C, cSt30.0
Viscosity, at 100°C, cSt7.3

Together with the first Toyota/Aisin CVT, the first special fluid for CVT transmission was introduced in 2000.

It is optimal to use genuine TC fluid. Also possible to use any fluid meets JWS 3320 specification. Possible to use universal CVTF when urgent.

CVT Fluid FE
P/N: 08886-02505 (4L), 08886-81390 (5L Euro)
Specification: JWS 3401

Density, at 15°C0.840
Flash point, °C175
Boiling point, °C316
Pour point, °C-45
Viscosity, at 40°C, cSt22.4
Viscosity, at 100°C, cSt5.2

Since 2012 the gradual transition of all CVTs to new "energy-saving" fluid FE started (significantly lower viscosity and less useful additives).

It is optimal to use genuine FE fluid. Possible to use universal CVTF when urgent.











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