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#4665749 - 02/14/18 11:57 AM oil analysis for atf?
edwardh1 Offline


Registered: 01/17/03
Posts: 2777
Loc: Coastal South Carolina
do people tend not to have the ATF sent to a lab? maybe by the time you collect the sample its just as easy to do a full or partial drain?

do the analysis folks tell you if the fluid is "worn out? or just if there are wear products from metal gears present.
what does it cost?
thanks>
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#4665768 - 02/14/18 12:12 PM Re: oil analysis for atf? [Re: edwardh1]
2015_PSD Online   content


Registered: 09/26/10
Posts: 6999
Loc: SE Texas
Here are a couple of UOAs from my retired 2010 FX4...there is not a great deal to learn from them and to some degree it may make more sense to just change the fluid.
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#4665792 - 02/14/18 12:39 PM Re: oil analysis for atf? [Re: edwardh1]
Bobaloo22 Offline


Registered: 02/20/11
Posts: 21
Loc: Orangeburgvlle, Va
I sent mine to Blackstone last week. I've got 42k on my 2015 Silverado and tow a 5k travel trailer about 1500 miles a summer. I'm changing the fluid and filter in the next week or so but hope to get an idea of how my trans is doing so far.

Bob
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#4665884 - 02/14/18 02:03 PM Re: oil analysis for atf? [Re: edwardh1]
SirTanon Online   content


Registered: 06/23/14
Posts: 1809
Loc: Phoenix, Arizona - USA
I've done it a couple times with my 2010 Fusion. This thread shows the most recent Blackstone ATF UOA results, which also include the details of the previous ATF UOA as well.

In my case, I just wanted to see what wear metals were looking like. Trans is getting close to 250,000 miles, and I wanted to get a good idea of what was going on inside it.
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#4665924 - 02/14/18 02:49 PM Re: oil analysis for atf? [Re: edwardh1]
GemStater Offline


Registered: 10/27/14
Posts: 228
Loc: Pacific NW USA
Just yesterday, I sent an ATF sample out to an ISO accredited lab for analysis. I've done a few engine labs before so this will be my first for the ATF.

I have a Honda transmission that's known to have some problems so I guess I'd like to see how it's wearing or if there is any other information I can glean from the report.
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#4666006 - 02/14/18 04:16 PM Re: oil analysis for atf? [Re: edwardh1]
double vanos Offline


Registered: 08/05/04
Posts: 1761
Loc: 5600 feet elevation, Arizona
You hear a lot of “ transmission fluids have a lot of detergents in them to keep the trans clean” but this UOA makes me question that assumption. Or did I miss something?
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#4666119 - 02/14/18 06:34 PM Re: oil analysis for atf? [Re: double vanos]
Linctex Offline


Registered: 12/31/16
Posts: 4704
Loc: Waco, TX
Originally Posted By: double vanos
You hear a lot of “ transmission fluids have a lot of detergents in them to keep the trans clean” but this UOA makes me question that assumption. Or did I miss something?


You didn't miss anything.

That's nothing but an old wive's tale......... nothing more
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#4666223 - 02/14/18 08:30 PM Re: oil analysis for atf? [Re: edwardh1]
zeng Offline


Registered: 09/01/15
Posts: 1982
Loc: Malaysia
In a lubrication system with an oil circulating pump and filter/strainer, oil with detergents is required.

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#4667036 - 02/15/18 05:09 PM Re: oil analysis for atf? [Re: double vanos]
MolaKule Offline


Registered: 06/05/02
Posts: 18643
Loc: Iowegia - USA
Originally Posted By: double vanos
You hear a lot of “ transmission fluids have a lot of detergents in them to keep the trans clean” but this UOA makes me question that assumption. Or did I miss something?


Transmission fluids have low levels of ashless dispersants and very low levels of detergents because they do NOT see combustion gasses and because the system is virtually a "sealed" system.

https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4660979/ATF_Fluids#Post4660979

post #4657460.


Edited by MolaKule (02/15/18 05:14 PM)
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#4667039 - 02/15/18 05:13 PM Re: oil analysis for atf? [Re: edwardh1]
MolaKule Offline


Registered: 06/05/02
Posts: 18643
Loc: Iowegia - USA
Originally Posted By: edwardh1
do people tend not to have the ATF sent to a lab? maybe by the time you collect the sample its just as easy to do a full or partial drain?

do the analysis folks tell you if the fluid is "worn out? or just if there are wear products from metal gears present.
what does it cost?
thanks>


A good lab will discuss comprehensively things such as Fluid oxidation, particulates, TAN, etc.

A UAO analysis is only worthwhile if one has analysis of the VOA of the virgin fluid and does trending.

UAO "Snapshots" are usually worthless.


Edited by MolaKule (02/15/18 05:18 PM)
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#4667048 - 02/15/18 05:21 PM Re: oil analysis for atf? [Re: edwardh1]
edwardh1 Offline


Registered: 01/17/03
Posts: 2777
Loc: Coastal South Carolina
seems an analysis would be compared to new fluid specs
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#4667092 - 02/15/18 06:00 PM Re: oil analysis for atf? [Re: edwardh1]
Garak Offline


Registered: 12/05/09
Posts: 23598
Loc: Regina, Saskatchewan, Canada
Yes, but one has to get the starting point by ideally doing a VOA at the same lab with the same batch of fluid being used.
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2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4668709 - 02/17/18 12:37 PM Re: oil analysis for atf? [Re: edwardh1]
bulwnkl Offline


Registered: 02/09/05
Posts: 1686
Loc: Arizona
Yes, and it’s neither difficult nor particularly expensive to just send 2 samples in; one of the new, one of the used. That’s what I did the last time I sent a sample from my shared sump in. One sample straight out of the bottle I’d filled the unit from, and one sample of the used stuff draining out. Particle count was what I was mainly interested in on that unit at that time.
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