LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Transmission fluid type

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Old 12-11-18, 07:39 PM
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SJE
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Default Transmission fluid type

New to the forum- I have a 2000 LS400 - wondering what type of fluid to use in the trans? Synthetic or not? Thanks all!
Old 12-11-18, 08:10 PM
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RA40
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Toyota Type IV or compatible to Toyota Type IV. Not Toyota Type WS, this for sealed versions found in later model Lexus/Toyota cars..
Old 12-11-18, 08:47 PM
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Stroock639
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yes only use type iv

mobil atf 3309 is also the equivalent of type iv
Old 12-11-18, 09:31 PM
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Yamae
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http://www.aisinaftermarket.jp/ja/pr...images/atf.pdf
I just added the translation. (Only related area)


Last edited by Yamae; 12-11-18 at 09:53 PM.
Old 12-11-18, 09:45 PM
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Mobil 3309.Thats whats relabled as Toyota type 4.

Old 12-12-18, 04:02 AM
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SJE
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thanks for the responses to my thread
Old 12-12-18, 09:31 AM
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Originally Posted by Yamae
http://www.aisinaftermarket.jp/ja/pr...images/atf.pdf
I just added the translation. (Only related area)

what are the headings to the table?
curious to know what the Os and Xs are for.
Old 12-12-18, 05:52 PM
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Originally Posted by timmy0tool
what are the headings to the table?
curious to know what the Os and Xs are for.
Aisin recommends to use Aisin's ATF AFW+ or AFS replacing Toyota T-IV.
Since Aisin is the manufacturer of ATs for any LS400, I think their recommendations are quite authentic. Next time when I change the ATF, I will be using Aisin ATF AFW+.

One thing I wonder is that Toyota ATF WS can't be used for LS400, but Aisin ATF AFW+ can be used for LS400 and LS430.
Old 12-13-18, 03:58 PM
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YODAONE
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Default Aisin ATF AFW+

Anyone with Aisin Type IV fluid and AFW+ transmission fluid specifications?

Contacted Lexus and they were unaware of AFW+...

Who stocks Aisin brand AFW+ transmission fluid in North America?..... Aisin fluids are not found on Auto parts store shelves in Chicago...
Old 12-13-18, 05:50 PM
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Originally Posted by Yamae
Aisin recommends to use Aisin's ATF AFW+ or AFS replacing Toyota T-IV.
Since Aisin is the manufacturer of ATs for any LS400, I think their recommendations are quite authentic. Next time when I change the ATF, I will be using Aisin ATF AFW+.

One thing I wonder is that Toyota ATF WS can't be used for LS400, but Aisin ATF AFW+ can be used for LS400 and LS430.
Saw that wide range listing that the WS type is covered by the AFW+, interesting. That was on an Australian site.
Old 12-14-18, 11:13 PM
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I use the stuff straight from the dealer. I'm sure you could use something else, but I don't usually mess around with transmissions. I always use the manufacturer recommended stuff to ensure I wont hurt the internals. It's not that expensive either, so no brainer for me.

Transmission fluid type-6bsxlna.jpg
Old 12-15-18, 05:00 AM
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YODAONE
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Originally Posted by AndrewRM
I use the stuff straight from the dealer. I'm sure you could use something else, but I don't usually mess around with transmissions. I always use the manufacturer recommended stuff to ensure I wont hurt the internals. It's not that expensive either, so no brainer for me.

Aisin manufactured our transmission and produces ATF TYPE T-IV for Toyota/Lexus and ATF AFW+.

Lubricants and hydraulic fluids have (arguably) improved over 25 years.

Still attempting to ascertain if attributes of AFW+ offer improvements over type IV.

Anyone with data of specifications?

Anyone who has switched to AFW+?

Are old and new fluids compatible??

Improved driveability cold and operating temperature??

Last edited by YODAONE; 12-15-18 at 05:11 AM.
Old 12-15-18, 06:12 AM
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Yamae
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Originally Posted by YODAONE
Aisin manufactured our transmission and produces ATF TYPE T-IV for Toyota/Lexus and ATF AFW+.

Lubricants and hydraulic fluids have (arguably) improved over 25 years.

Still attempting to ascertain if attributes of AFW+ offer improvements over type IV.

Anyone with data of specifications?

Anyone who has switched to AFW+?

Are old and new fluids compatible??

Improved driveability cold and operating temperature??
How do you like the PDF file below?
It says that the Aisin AFW+ is fully synthetic.
I think you'll find most of answers.
According to local shop owners, this ATF works better than Toyota T-IV when it is cold.
They also commonly say that they don't need to stock Toyota T-IV and WS any more since it covers variety of models.
Attached Files
File Type: pdf
AISIN_Fully_Synthetic_AFW.pdf (335.3 KB, 160 views)

Last edited by Yamae; 12-15-18 at 06:32 AM.
Old 12-15-18, 06:51 AM
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Yamae
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This is just for your information. Below is the specification for Toyota ATF T-IV. You can compare this and Aisin ATF AFW+.


Old 12-15-18, 10:21 AM
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my previous comment wasnt directed towards u yamae...
we all trust ur wisdom


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