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#1346687 - 01/19/09 04:43 PM
Re: Synthetic Toyota T-IV?
[Re: bepperb]
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Registered: 08/30/04
Posts: 9992
Loc: CA
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Are you sure their business isn't making one product that magically is "suitable" for every concieveable transmission based not on testing, but on the assumption that most transmissions will still function on a fluid out of spec, and if not proving Amsoil responsible will be nearly impossible?
If someone isn't satisfied with the performance of T-IV, I would think it most prudent to use the Mobil 1 Synthetic that is suitable for T-IV. It's still a one-size-fits-all solution, but at least it comes from the same company that makes the original and therefore in knowlegeable about the OEM's requirements.
For the record, I have no problems with Amsoil products, just users that seem to believe they have some magical garage with three copies of every vehicle ever made, with 1 million miles on each using only Amsoil products. If I recall correctly, it's shaped like Noah's ark and the Stig's younger brother Richard does all the test miles. That, or maybe (likely?) someone with a masters in finance who calculates that yes, the regular Amsoil ATF does meet T-IV based mostly on the cost of making a unique product just for that application. Amsoil is just a blender, but they work with their additive supplier to tweak the formulation to meet their goals. Lubrizol makes Amsoil's additive package. Here's an article from Lubrizol about their multi-vehicle additive packages. Lubrizol is really pushing this stuff: http://assets.2tmedia.com/pr/pdfs/17/lubrizol_driveline_news_issue_1_2008.pdfLubrizol strongly believes that by 2010, they can cover 30 different applications with one fluid that is built from their 9680 family of additive packages.
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'96 Saturn SL2- 140,000 mi- Formula Shell 5w-30
'92 Toyota Previa- 90,000 mi- Quaker State 10w-30
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#1347596 - 01/20/09 12:15 PM
Re: Synthetic Toyota T-IV?
[Re: StevieC]
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Registered: 01/10/08
Posts: 1611
Loc: Milwaukee, WI
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"I see you waited over a year to make your first post, this subject must have overcome your patience threshold. "
I really just show up from time to time for the forum about cheap oil, you know, the one at the very bottom. I finally had to join for the search function about a year ago, trying to find a suitable replacement for Honda coolant on a Sunday (when dealers aren't open in WI). Never did find a firm answer, used Peak Global and the water pump hasn't burst into flames yet.
Anyway, Critic, that was a pretty good read (though basically an ad produced by the company), and I don't doubt that it's a good product. I have a Toyota T-IV tranny, and flushed with oem once thus far, still have some 1->2 shift studder, so I'm looking for something new, as is the original poster. I'm pretty weary of any one-size-fits-all ATF, but that seems to be the direction everyone has taken. Even Mobil that makes the oem 3309 now states Mobil 1 synth is a go for T-IV. So why still make the 3309 then? If one fluid was fine for everything, why wouldn't Toyota have WS replace all T-IV applications?
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2006 Accord 2.4l K24A8
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#1347607 - 01/20/09 12:34 PM
Re: Synthetic Toyota T-IV?
[Re: bepperb]
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Registered: 02/20/07
Posts: 518
Loc: Southeast
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If someone isn't satisfied with the performance of T-IV, I would think it most prudent to use the Mobil 1 Synthetic that is suitable for T-IV. It's still a one-size-fits-all solution, but at least it comes from the same company that makes the original and therefore in knowlegeable about the OEM's requirements.
This is 3rd-4th party info I read from a volvo forum a while ago. Said that T-IV (JWS3309, also used in volvo AisinWarner ATs) has same friction/VI properties as Dex 3. It was developed with a much more robust package when aisin-warner (used in toyo, volvo, jeep, others) began using torque converters with the partial lockup algorithm. The partial lock operation was very hard on fluids and required a sturdier fluid to hold up over time. IF that's all true, +1 for the M1 syn atf. Also makes DexVI a remote possibility... <grin> M
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#1348036 - 01/20/09 09:42 PM
Re: Synthetic Toyota T-IV?
[Re: artificialist]
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Registered: 04/02/08
Posts: 145
Loc: Kalispell, Montana
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Redline D6 claims that it will work where Toyota WS is needed, however, I have not seen any results from the use of it. I replaced the factory WS in my Sequoia with D6 when it was released by Redline and it has worked extremely well so far.
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