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Power Steering, Dex 3 and T-IV? #4811380
07/11/18 12:55 PM
07/11/18 12:55 PM
Joined: Aug 2004
Posts: 305
San Diego
FlyPenFly Offline OP
FlyPenFly  Offline OP
Joined: Aug 2004
Posts: 305
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.


2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6
Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811382
07/11/18 12:57 PM
07/11/18 12:57 PM
Joined: Aug 2003
Posts: 13,063
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,063
NE,Ohio
being a hydraulic system I would think it is fine. viscosity mattering more than additives, but who knows really?


2019 Jeep Cherokee Trailhawk 2.0T
Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811392
07/11/18 01:05 PM
07/11/18 01:05 PM
Joined: Jan 2013
Posts: 1,084
Ontario, Canada
GSCJR Offline
GSCJR  Offline
Joined: Jan 2013
Posts: 1,084
Ontario, Canada
Yes, the T-IV will be fine.


03 3.0L 1MZ-FE QSGB 5w-30 ProSelect 21348 256KM
10 3.5L 2GR-FE CEB 0w-20 Defense DL9972 156KM
Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811515
07/11/18 03:10 PM
07/11/18 03:10 PM
Joined: Dec 2006
Posts: 958
midwest
JamesBond Offline
JamesBond  Offline
Joined: Dec 2006
Posts: 958
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.

Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811530
07/11/18 03:24 PM
07/11/18 03:24 PM
Joined: Aug 2004
Posts: 305
San Diego
FlyPenFly Offline OP
FlyPenFly  Offline OP
Joined: Aug 2004
Posts: 305
San Diego
I guess it's more about using what I have so I don't waste it than the money.


2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6
Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811578
07/11/18 04:21 PM
07/11/18 04:21 PM
Joined: May 2014
Posts: 3,780
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,780
Columbus,Nebraska
Never have understood why Toyota calls for Type T-IV ATF in AT but Dex 3 for power steering.

Re: Power Steering, Dex 3 and T-IV? [Re: FlyPenFly] #4811704
07/11/18 06:57 PM
07/11/18 06:57 PM
Joined: Sep 2003
Posts: 1,335
Austin, TX
MaximaGuy Offline
MaximaGuy  Offline
Joined: Sep 2003
Posts: 1,335
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.


2018 MB GLE350
2011 Lexus ES350
2006 Toyota Highlander 4WD

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