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#3357668 - 04/30/14 11:44 AM Re: Oil analysis not accepted [Re: Donald]
friendly_jacek Offline


Registered: 05/04/03
Posts: 5500
Loc: southeast US
Originally Posted By: Donald


It still could be used by the owner in court if it came to that. You can always take the sample in a sterile container and decide to get it analyzed at a latter point in time. A pharmacy will give you a sterile bottle if you ask.


If the oil in question is not G-oil, no need for sterile container.

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#3357729 - 04/30/14 12:31 PM Re: Oil analysis not accepted [Re: tig1]
HTSS_TR Online   content


Registered: 04/17/06
Posts: 12965
Loc: Irvine, CA
Originally Posted By: tig1
This is just one more reason UOAs are a waste of money, with the rare exception of checking for a suspected coolant leak or other oil contamination.

In general it's a waste of money. But if someone is driving 30-50k mostly highway miles a year, he/she may likes to do an UOA at 10-15k miles with synthetic oil to see if it can be extended to 15-25k miles, so that the OCI can be reduced to twice a year.
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#3357804 - 04/30/14 01:38 PM Re: Oil analysis not accepted [Re: friendly_jacek]
Donald Offline


Registered: 03/21/04
Posts: 13662
Loc: Upstate NY
Originally Posted By: friendly_jacek
Originally Posted By: Donald


It still could be used by the owner in court if it came to that. You can always take the sample in a sterile container and decide to get it analyzed at a latter point in time. A pharmacy will give you a sterile bottle if you ask.


If the oil in question is not G-oil, no need for sterile container.


I realize that but you need a container with no residue (from washing it) and its easy to get a free sterile from a pharmacy.
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#3358160 - 04/30/14 07:58 PM Re: Oil analysis not accepted [Re: Camprunner]
Joenpb Offline


Registered: 07/04/11
Posts: 111
Loc: San Diego, CA
Not really surprising a dealership won't accept an UOA, after all they don't know for sure what oil was tested. I found UOA to be worth the money when I changed from the recommended viscosity, thinking thicker was better. My wear metals were noticeably higher, now back to OEM spec 5w20, and all is well.

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#3361507 - 05/04/14 02:47 PM Re: Oil analysis not accepted [Re: Donald]
MolaKule Offline


Registered: 06/05/02
Posts: 14702
Loc: Iowegia
Originally Posted By: Donald
Originally Posted By: Camprunner
I was talking to a friend who is a service advisor now for Toyota and worked for Ford for many years as well. He was telling me that if you have a motor failure during your warranty time both Ford and Toyota do not accept oil analysis so they will not have your oil tested nor do they care if you had it tested yourself. He said they do care if you had your oil changes though and may or may not request to see your oil change slips or proof of oil change and at what millage. I wonder if the other auto manufactures work the same way? I found this interesting and just thought I would share.

I would think they would want to check it to see if you were running the proper oil weight at leased?


It still could be used by the owner in court if it came to that. You can always take the sample in a sterile container and decide to get it analyzed at a latter point in time. A pharmacy will give you a sterile bottle if you ask.



After having done a number of forensic cases, here's some tips. (Disclosure - I am a non-attorney dude!)

1. Document, document, document every step with receipts and notes. Trying to do this after the fact only reduces your credibility. Even one valid scrap of paper can help your claim.

2. Do not take at face value any claims or statements made by the dealer. The only statements that hold up in court are the written guarantees and statements by the manufacturer and facts that can be documented.

3. If you think you have a valid claim, go to an attorney first with your VOAs. UOAs, and any other documentation that you have. If the attorney thinks your claim is valid or supportable, he will then make a claim against the dealer and or manufacturer.

4. If the lawyer thinks an expert witness can help your case, then someone like mwa is called in to either testify or give an assessment via an affidavit.
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#3391201 - 06/06/14 11:58 PM Re: Oil analysis not accepted [Re: Camprunner]
Kuato Offline


Registered: 10/23/05
Posts: 3232
Loc: Northeastern MT
Very true that a single UOA isn't very valuable , except for.checking condition of the oil and arriving at the correct OCI.

But a series of them can be quite useful. Case in point for my '99 Grand Cherokee. This is one of the years the 4.0 suffered from the 0331 porous head casting. UOA showed higher than average wear and coolant. Without having the series of 3 UOAs done I might never have known and ended up on the side of the road, but was able to take action.

Further, aircraft engines are sampled and UOAs performed in commercial applications. This practice has caught many failing internals before they caused an emergency situation, and is required in many cases.


Edited by Kuato (06/07/14 12:00 AM)
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#3391334 - 06/07/14 08:54 AM Re: Oil analysis not accepted [Re: tig1]
Trav Offline


Registered: 11/20/06
Posts: 10257
Loc: MA, Mittelfranken.de
Originally Posted By: tig1
This is just one more reason UOAs are a waste of money, with the rare exception of checking for a suspected coolant leak or other oil contamination.


+1 I have no use for them for an engine that has a stable coolant level and runs well.
In some known problem engines i might do it once in a while.
IMHO your better served putting the cost of the UOA into a better oil or a case of beer with a pizza.
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#3392167 - 06/08/14 12:32 PM Re: Oil analysis not accepted [Re: SteveSRT8]
demarpaint Offline


Registered: 07/03/05
Posts: 21550
Loc: NY
Originally Posted By: SteveSRT8
^^^X a dozen. UOA's are tremendously over-valued here as some kind of holy grail when in reality they are just another data point at best...


Add me to that list. It has some value very little IMO though.
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#3392851 - 06/09/14 09:05 AM Re: Oil analysis not accepted [Re: Camprunner]
MinamiKotaro Online   content


Registered: 08/01/12
Posts: 655
Loc: TN
UOAs are mostly for fun, imho. They can give you an idea of your interval being too long for that particular oil (sheared way out of grade, TBN way too low), but they don't give a good indication of wear.
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