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Toyota ATF WS from a PRIUS V 65300 #4349131
03/08/17 11:25 PM
03/08/17 11:25 PM
Joined: Dec 2016
Posts: 3
ca
dyethor Offline OP
dyethor  Offline OP
Joined: Dec 2016
Posts: 3
ca
Hello,

Here are the Blackstone results for the Toyota ATF WS taken from my 2013 Prius V. I wrote the wrong mileage on the sample I sent in, it should have been 65300. I'm the second owner but I think this is the original fluid, when I pulled the plugs it didn't look like they had been removed before. I changed the fluid out to AMSOIL Signature Series Fuel-Efficient Synthetic ATF. I plan on putting a couple months on it then changing it again and getting that tested.


Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349134
03/08/17 11:31 PM
03/08/17 11:31 PM
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
901Memphis Offline
901Memphis  Offline
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
Yeah that's definitely a factory fill, as evidence by how sheared it is. I've seen some crazy high iron before but never aluminum like that on a transmission uoa.


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349142
03/08/17 11:41 PM
03/08/17 11:41 PM
Joined: Feb 2016
Posts: 514
USA
DrRoughneck Offline
DrRoughneck  Offline
Joined: Feb 2016
Posts: 514
USA
Thanks for posting these numbers.
Toyota claims WS ATF lasts for the lifetime of the vehicle.
What they really mean is by changing it, you significantly increase the lifetime of the vehicle.
Do let us know how Amsoil works.
I've drained/filled with MaxLife synthetic ATF which claims WS-compatibility. No UOA but shifts are smoother and ATF remains clear red after a few 1000s miles.

Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349156
03/09/17 12:05 AM
03/09/17 12:05 AM
Joined: Sep 2014
Posts: 2,176
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,176
US-WA
HSD is hard on the WS. I am thinking of doing a d/f even sooner than the 30K initially planned, especially after seeing this.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: Toyota ATF WS from a PRIUS V 65300 [Re: Dyusik] #4349159
03/09/17 12:13 AM
03/09/17 12:13 AM
Joined: Feb 2016
Posts: 514
USA
DrRoughneck Offline
DrRoughneck  Offline
Joined: Feb 2016
Posts: 514
USA
Originally Posted By: Dyusik
HSD is hard on the WS. I am thinking of doing a d/f even sooner than the 30K initially planned, especially after seeing this.

HSD?

Re: Toyota ATF WS from a PRIUS V 65300 [Re: DrRoughneck] #4349162
03/09/17 12:24 AM
03/09/17 12:24 AM
Joined: Sep 2014
Posts: 2,176
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,176
US-WA
Hybrid synergy drive. Thats what toyota call the CVT-like tranny they got.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349195
03/09/17 03:24 AM
03/09/17 03:24 AM
Joined: Apr 2016
Posts: 781
Specific Ocean
Kibitoshin Offline
Kibitoshin  Offline
Joined: Apr 2016
Posts: 781
Specific Ocean
WS isn't a lifetime fluid but a 60,000mi fluid in my opinion. The WS factory fill in my bro's Lexus LS430 with ~120,000mi smelt bad and looked like runny poo water. If it was recently changed it wouldn't look like that. It did get a complete fluid w/ WS (12qts) and filter change but I'm considering switching to Maxlife at around 150,000mi.


Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L
02 Chevy Silverado C1500 V8 5.3L
Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349327
03/09/17 08:32 AM
03/09/17 08:32 AM
Joined: Dec 2016
Posts: 3
ca
dyethor Offline OP
dyethor  Offline OP
Joined: Dec 2016
Posts: 3
ca
I forgot to add I live in the Temecula area in southern California so my car sees ambient air temps temps from 32f to 115f.
I would have changed it sooner if I knew.
My mom just bought a used 2014 Prius with 30,000 on it. I'm going to talker her into changing the fluid out. Her last car was a 2007 Corolla that finally gave up two weeks ago with roughly 600,000. I didn't get any UOA's on it but I think she had only changed the trans fluid once. it was severe driving as well she lives on a mountain in Southern California and drives up and down every work day.

Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349600
03/09/17 02:34 PM
03/09/17 02:34 PM
Joined: Jul 2004
Posts: 12,070
Middlesex County CT
simple_gifts Offline
simple_gifts  Offline
Joined: Jul 2004
Posts: 12,070
Middlesex County CT
I was going to 'go off' on the fluid, but who knows there may be an issue with the HSD.

I'm running D4 in my 2004; was never a fan of Toyota factory fluids; they never seem to 'amaze' like after market ones do.

I changed my FF @ 66K shortly after getting the vehicle; glad I did.

Last edited by simple_gifts; 03/09/17 02:35 PM.

2004 Prius; 102K; ASL
2007 Yaris 78K 0w-40 Castrol
2006 B2300;132K;ALM


Was driving an ox cart; Now on the USS Enterprise
Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4349701
03/09/17 05:03 PM
03/09/17 05:03 PM
Joined: Aug 2009
Posts: 577
Modesto,CA
mehullica Offline
mehullica  Offline
Joined: Aug 2009
Posts: 577
Modesto,CA
Change the fluid often, with many high mileage older generation hybrids Toyota/Lexus MG1 & MG2 will start to short out the windings on the stator. The expansion & contraction of the windings over time damages the insulating coating from the wear metals in the fluid. Almost like a sandblasting effect. I've dismantled several with over 200,000 miles & you can see the insulation on the windings etched from the wear metals.

Re: Toyota ATF WS from a PRIUS V 65300 [Re: mehullica] #4351326
03/11/17 06:58 PM
03/11/17 06:58 PM
Joined: Dec 2016
Posts: 3
ca
dyethor Offline OP
dyethor  Offline OP
Joined: Dec 2016
Posts: 3
ca
By chance would you have any pics of the MG's? I would be interested to see the degradation.

Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4631182
01/11/18 08:43 AM
01/11/18 08:43 AM
Joined: Apr 2008
Posts: 1
Ohio
vetteryan Offline
vetteryan  Offline
Joined: Apr 2008
Posts: 1
Ohio
Any updates?

Re: Toyota ATF WS from a PRIUS V 65300 [Re: 901Memphis] #4633043
01/12/18 09:39 PM
01/12/18 09:39 PM
Joined: Mar 2016
Posts: 1,627
Western S.C.
CR94 Online content
CR94  Online Content
Joined: Mar 2016
Posts: 1,627
Western S.C.
Originally Posted By: 901Memphis
Yeah that's definitely a factory fill, as evidence by how sheared it is. I've seen some crazy high iron before but never aluminum like that on a transmission uoa.
From what I've read of the experiences of others, the factory fill from a HSD typically comes out looking rough, even if drained pretty early. Then subsequent fills, not so much. I don't recall any specific UOA data. I changed mine, which was probably factory fill, at about 49K. It was inky black, as is reportedly typical for a first drain. Nothing stuck to the magnet with which I stirred the drained WS, though. With the new WS, I installed a magnetic drain plug.

Last edited by CR94; 01/12/18 09:40 PM.

2011 Toyota Prius now at 94K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Toyota ATF WS from a PRIUS V 65300 [Re: mehullica] #4636666
01/16/18 12:36 PM
01/16/18 12:36 PM
Joined: Aug 2002
Posts: 14,556
Silicon Valley
PandaBear Online content
PandaBear  Online Content
Joined: Aug 2002
Posts: 14,556
Silicon Valley
Originally Posted By: mehullica
Change the fluid often, with many high mileage older generation hybrids Toyota/Lexus MG1 & MG2 will start to short out the windings on the stator. The expansion & contraction of the windings over time damages the insulating coating from the wear metals in the fluid. Almost like a sandblasting effect. I've dismantled several with over 200,000 miles & you can see the insulation on the windings etched from the wear metals.


Thanks for this 1st hand information. Do you see units failing much more often with frequent ATF change as well?

Also do you think other ATF would do ok or you think WS makes more sense?

Last edited by PandaBear; 01/16/18 12:40 PM.

"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
Re: Toyota ATF WS from a PRIUS V 65300 [Re: dyethor] #4699752
03/19/18 12:45 PM
03/19/18 12:45 PM
Joined: Feb 2015
Posts: 1,383
Maple Syrup Land
Stewie Offline
Stewie  Offline
Joined: Feb 2015
Posts: 1,383
Maple Syrup Land
Was this the standard test? thinking of getting mine tested

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