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#4811380 - 07/11/18 01:55 PM Power Steering, Dex 3 and T-IV?
FlyPenFly Offline


Registered: 08/04/04
Posts: 262
Loc: San Diego
Been meaning to swap out some fluid for my Suzuki as preventive maintenance. Manual calls for Dex 3, can I just use some bottles of Aisin T-IV fluid that I have not used? DOn't mind buying the right kind but if it's compatible, I'd rather not waste new OEM fluid.
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2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6

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#4811382 - 07/11/18 01:57 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
Rand Offline


Registered: 08/20/03
Posts: 12726
Loc: NE,Ohio
being a hydraulic system I would think it is fine. viscosity mattering more than additives, but who knows really?
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#4811392 - 07/11/18 02:05 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
GSCJR Offline


Registered: 01/20/13
Posts: 1070
Loc: Ontario, Canada
Yes, the T-IV will be fine.
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#4811515 - 07/11/18 04:10 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
JamesBond Offline


Registered: 12/13/06
Posts: 861
Loc: midwest
Is it easy to change the seals in the rack or pump?

People with Aisin transmissions go out of their way to get this fluid whether it's from Mobil, Toyota, Volvo or motorcraft, so it would seem that there is something different about this fluid.

Maybe it would be fine or even better than dex3, and I agree with you about not wanting to waste it but dex3 is like $3 a quart.

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#4811530 - 07/11/18 04:24 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
FlyPenFly Offline


Registered: 08/04/04
Posts: 262
Loc: San Diego
I guess it's more about using what I have so I don't waste it than the money.
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2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6

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#4811578 - 07/11/18 05:21 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3476
Loc: Columbus,Nebraska
Never have understood why Toyota calls for Type T-IV ATF in AT but Dex 3 for power steering.

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#4811704 - 07/11/18 07:57 PM Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly]
MaximaGuy Offline


Registered: 09/20/03
Posts: 1233
Loc: Austin, TX
Stick with MaxLife Dex3 fluid (that is the best Dex3 fluid and have it on both my Toyota vehicles) - get it in Walmart.
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