Re: I mail order Aisin Type T-IV from Rock Auto - Saab 9-5 Bulletin Board - Saabnet.com
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Re: I mail order Aisin Type T-IV from Rock Auto
Posted by cheaptechs (more from cheaptechs) on Mon, 11 Jan 2021 14:19:04
In Reply to: Re: I mail order Aisin Type T-IV from Rock Auto, thewheell22 [Profile/Gallery]
, Mon, 11 Jan 2021 12:44:13
In my 2004 9-5 I've used only Toyota IV or for my last ATF change Mobil 3309 and Toyota IV - I bought of case of 3309 and used 4 bottles, so had 8 left , used 4 of those to create a blend of 3309 and Valvoline Maxlife to change the ATF on my Hyundai. Link below might be informative.
It does make sense to use what the OEM recommends for the tranny - but it's an older spec and many of the newer full synthetic ATFs are backwards compatible and I'm of the opinion that like oil synthetic ATF is better than mineral based. So Mobil has a fully syn atf that is compatible with the Saab aisin tranny. A good number of tranny shops buy bulk ATF fluid and put additives in it based on the specific tranny, there are some differences in viscosity and additives between the auto brands, but most trannies will work fine with minor differences in the ATF specs, I researched this and your better brands will have spec sheets that list things like viscosity, flash points and so on so you can compare.
But IMO the real proof is in the "pudding" or how your vehicle operates when you add a new ATF, if you have shaky cold weather performance, rough shifts or shudder from the lock up converter then I'd say get that fluid out and go back to the OEM. If anything though you may see better cold weather performance from the Valvoline as it's a syn and lower viscosity than the 3309, Valvoline I believe makes an import ATF and I'll likely use that when I next service the Hyundai.
The additive I mentioned I would term a flush - and it goes in for a limited time before you change out the ATF, maybe even a few hours of operation and it's designed to remove impuriites like varnish that can developed on shift solenoids and hinder their operation. I'd only use it if you had some shift issues or the old fluid was badly overused - thicker and black in color.
posted by 70.59.11...
Posts in this Thread:
- Are there any Auto-Trans conditioning additives?, thewheell22 , Fri, 1 Jan 2021 10:57:07
- Twenty-five years working for GM's Hydra-matic, MI-Roger , Tue, 5 Jan 2021 10:17:571
- Re: Are there any Auto-Trans conditioning additives?, siwyjohn, Mon, 4 Jan 2021 01:34:40
- Re: Are there any Auto-Trans conditioning additives?, Boris Bubbanov, Sat, 2 Jan 2021 18:02:571
- Please don't use that crap!, jimmy, Sat, 2 Jan 2021 08:50:43
- Re: Are there any Auto-Trans conditioning additives?, JerseySaab , Fri, 1 Jan 2021 11:23:55
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