TOYOTA ATF Type T IV

[CowboyUp]

Hi

I found Toyota transmission fluid at very good price and the only problem is that is Type T IV and I am wonder if can be use in 80 or is just for 100...?

 

[ShawnTRD]

Are you going to share this "great price" information with everyone?

 

[96r50]

Price doesn't matter, as the Type T-IV (T4) is not the correct fluid for the 80s, nor the early 100s. These both use Dexron II, which has been superseded a number of times, and is now referred to as "ATF designed for GM transmissions 2005 and before". See this thread (specifically the text in blue): https://forum.ih8mud.com/80-series-tech/161325-change-dexron-labling-atf-mobil-1-a.html

F.Y.I.: The transmission dipstick usually lists the correct fluid for the transmission.

 

[OGBeno]

Ok....edit: I've used Type T-IV before with no issues. Other people's trannies might die if they use it.

 

[CowboyUp]

Are you going to share this "great price" information with everyone?

6 $ and few cents! For me is good price because is Toyota stuff .

 

[CowboyUp]

Price doesn't matter, as the Type T-IV (T4) is not the correct fluid for the 80s, nor the early 100s. These both use Dexron II, which has been superseded a number of times, and is now referred to as "ATF designed for GM transmissions 2005 and before". See this thread (specifically the text in blue): https://forum.ih8mud.com/80-series-tech/161325-change-dexron-labling-atf-mobil-1-a.html

F.Y.I.: The transmission dipstick usually lists the correct fluid for the transmission.

OK, I just wanted to double check !

 

[CowboyUp]

Ok....edit: I've used Type T-IV before with no issues. Other people's trannies might die if they use it.

No good! What trannies do you have or what trick did you did do working for you ?!

 

[ShawnTRD]

I'm just going to get some AMSOIL AMSOIL Synthetic Automatic and Manual Transmission Fluid and do a drain, fill, drain, fill, drain, filter, fill.

 

[CowboyUp]

I'm just going to get some AMSOIL AMSOIL Synthetic Automatic and Manual Transmission Fluid and do a drain, fill, drain, fill, drain, filter, fill.

Is looking like Amsoil is very popular here and thanks for the link, now I know how is looking! I never seen here in town in auto parts store this product! Maybe I will go with Amsoil to if I can get Toyota Dextron 2 !

 

[CowboyUp]

I'm just going to get some AMSOIL AMSOIL Synthetic Automatic and Manual Transmission Fluid and do a drain, fill, drain, fill, drain, filter, fill.

You will use Amsoil dextron 3 in your cruiser?

 

[96r50]

Ok....edit: I've used Type T-IV before with no issues. Other people's trannies might die if they use it.

I was under the impression that T-IV and Dexron were not compatible for whatever reason, but I've been known to be wrong before How/why did you run T-IV in your 80?

 

[Cruiserdrew]

I was under the impression that T-IV and Dexron were not compatible for whatever reason, but I've been known to be wrong before How/why did you run T-IV in your 80?

The Mobil1 ATF now says it's good for the old Dexron applications and meets requirements for Toyota Type IV. I'm guessing it will be fine.

My understanding is that the Toyota IV is basically the same Dexron type fluid with better lower temp properties.

 

[Cañonero]

I've been researching A LOT about ATF.

If you know Rodney, from Wholesale Automatic Transmission Australia, that seems to be the most knowledgeable man on these transmissions in the world, he recommends FULLY synthetic Dexron III or better ATF. He specially recomends Castrol Transmax Z or Allison Transynd.

I put FULLY in capitals as many fluids are advertised as synthetic but are not fully or 100% synthetic, just a blend of mineral and synthetic. Rodney told me that this is important.

I've been going crazy as I couldn't find any oil like this in Spain till I found out that the spanish Transmax Z was the same as the Australian (I had been told that they were different and not Dexron III compatible, so I had discarded it).

If you take a look at this ZF document about ATF's for buses: http://www01apps.zf.com/kst464/ZF_InteroeleV2_manager/Work/2010-01-01/TE-ML 14_es0701.pdf

You will see that from almost 300 ATF's, Castrol Transmax Z and Transynd are two of the few 9 ATF's that are certified for drain intervals of more than 120.000 Km in ZF transmissions for buses.

Anyway, any fully synthetic fluid from Amsoil, Redline, Mobil 1, Castrol, Allison.... that is Dexron III compatible (note than in some countries Castrol Transmax Z is not certified for Dexron III, but it is 100% compatible, confirmed by Castrol) will be fine.

If you live in very cold climates, put attention in the -40 Brookfield viscosity, that measures the capacity of properly fluid at lower temperatures. The lower the better.

For instance, Transmax Z, Redline and Amsoil are all around 8000. Take this table as a reference:

It's also interesting to choose the one with the highest Flashpoint (it's not that you are going to reach it, but the higher the better they handle high temperatures).

 

[CowboyUp]

I've been researching A LOT about ATF.

If you know Rodney, from Wholesale Automatic Transmission Australia, that seems to be the most knowledgeable man on these transmissions in the world, he recommends FULLY synthetic Dexron III or better ATF. He specially recomends Castrol Transmax Z or Allison Transynd.

I put FULLY in capitals as many fluids are advertised as synthetic but are not fully or 100% synthetic, just a blend of mineral and synthetic. Rodney told me that this is important.

I've been going crazy as I couldn't find any oil like this in Spain till I found out that the spanish Transmax Z was the same as the Australian (I had been told that they were different and not Dexron III compatible, so I had discarded it).

If you take a look at this ZF document about ATF's for buses: http://www01apps.zf.com/kst464/ZF_InteroeleV2_manager/Work/2010-01-01/TE-ML 14_es0701.pdf

You will see that from almost 300 ATF's, Castrol Transmax Z and Transynd are two of the few 9 ATF's that are certified for drain intervals of more than 120.000 Km in ZF transmissions for buses.

Anyway, any fully synthetic fluid from Amsoil, Redline, Mobil 1, Castrol, Allison.... that is Dexron III compatible (note than in some countries Castrol Transmax Z is not certified for Dexron III, but it is 100% compatible, confirmed by Castrol) will be fine.

If you live in very cold climates, put attention in the -40 Brookfield viscosity, that measures the capacity of properly fluid at lower temperatures. The lower the better.

For instance, Transmax Z, Redline and Amsoil are all around 8000. Take this table as a reference:

It's also interesting to choose the one with the highest Flashpoint (it's not that you are going to reach it, but the higher the better they handle high temperatures).

Thank you!

 

[7schulz]

TranSynd is amazing stuff. I have seen parts out of Allison Transmissions with no wear after 500K, but it is very expensive. If you are hard on your tranny and run it hot us TranSynd if not use one of the cheeper syn ATF's

 

[zukinut]

BUT, isnt it a bad idea to drain and flush a tranny after say 150k. I know for a fact that its not a good idea in older ford trannies.

Any toyota tech info on this?

Will

 

[ShawnTRD]

Bad to do the chemical flush where they run a detergent through your tranny before flushing it with new fluid. I would only recommend the detergent flush if your having problems like shifting, not slipping, and have already tried the fluid exchange without any luck.

 

[CowboyUp]

Well, I changed today the ATF and I use in the end ATF Castrol High Mileage ( I used before this oil and I can see the difference) . I don't flushed the system, but I got out from my transmission 4 quarts and the fluid was clean and smell good . Is looking like PO did the ATF change together with the oil, 9 months ago.
I was looking to get TranSynd and do a really flush, but I don't found the oil in all the city in usually auto parts store ! The guys from Autozone never heard about Allison products !