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#4635432 - 01/15/18 07:40 AM Do you find VOA's or UOA's more interesting?
ZZman Offline


Registered: 03/17/08
Posts: 5850
Loc: Michigan
I prefer VOA's because I am most interested in the additive make up of the oil.
_________________________
2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40

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#4635440 - 01/15/18 07:55 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1911
Loc: SE British Columbia, Canada
Please define VOA’s and UOA’s for the newbies, and you’ll get more replies.

SF

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#4635443 - 01/15/18 07:57 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 4068
Loc: New England
VOAs for sure!
_________________________
2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4635472 - 01/15/18 08:23 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
Olas Offline


Registered: 12/11/13
Posts: 3938
Loc: Manchester, England
Generally VOAs just to know what I might be pouring in, but a UOA of the same oil/engine that I have would be even more interesting to me than a VOA
_________________________
Cable ties should hold it

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#4635473 - 01/15/18 08:24 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
But......
VOA's do not tell the story... it's just an elemental analysis.
They don't tell you what type of chemical formulation exists... just "elements"

"Oh, look at all the zinc!"
You don't know if it's ZDDP or ground up pennies
(or the zinc gear case of the oil transfer pump that fills the jugs is wearing out)

VOA's tell nothing of which basestocks are used in the make-up.

UOA's at least tell you how well an engine is wearing on a certain oil,
or if there are issues from other contaminants.

_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4635474 - 01/15/18 08:26 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
CT8 Offline


Registered: 10/09/14
Posts: 11245
Loc: Idaho
UOAs to see how the oils are holding up in use.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4635479 - 01/15/18 08:29 AM Re: Do you find VOA's or UOA's more interesting? [Re: Snagglefoot]
ZZman Offline


Registered: 03/17/08
Posts: 5850
Loc: Michigan
VOA (Virgin Oil Analysis)
UOA (Used Oil Analysis)
_________________________
2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40

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#4635492 - 01/15/18 08:41 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
newbe46 Offline


Registered: 01/19/17
Posts: 207
Loc: Ontario, Canada
UOA. It tells me how it gets there.
_________________________
2003 E46 M3 Convertible
2004 Odyssey EX-L
2004 Impreza TS Wagon

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#4635513 - 01/15/18 08:55 AM Re: Do you find VOA's or UOA's more interesting? [Re: Linctex]
fdcg27 Offline


Registered: 09/25/09
Posts: 15844
Loc: OH
Originally Posted By: Linctex
But......
VOA's do not tell the story... it's just an elemental analysis.
They don't tell you what type of chemical formulation exists... just "elements"

"Oh, look at all the zinc!"
You don't know if it's ZDDP or ground up pennies
(or the zinc gear case of the oil transfer pump that fills the jugs is wearing out)

VOA's tell nothing of which basestocks are used in the make-up.

UOA's at least tell you how well an engine is wearing on a certain oil,
or if there are issues from other contaminants.



Really good VOAs, like those found on the PQIA site do give a good indication of the quality of the basestock blend used since they include MRV and NOACK numbers.
UOAs are mainly interesting as an indication of shearing, TBN retention and oxidation, all of which will depend upon the engine in which the oil was run and for how long as well as how the vehicle was used.
They're also interesting as a gauge of just how badly certain engines fuel dilute the oil.
_________________________
17 Forester 12K MSS 0W-20
12 Accord LX 86K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i

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#4635548 - 01/15/18 09:26 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
aquariuscsm Offline


Registered: 12/30/06
Posts: 18312
Loc: Dallas,Tx USA
I like both. And what's become immensely frustrating is searching uoa's and voa's only to find the host is no longer active.
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W30


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#4635573 - 01/15/18 09:52 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
UncleDave Offline


Registered: 06/02/14
Posts: 1711
Loc: Ca.

UOA's - between the manufacturers data sheets and PQIA I can get a good idea of where my base is. You arent ever going to get the "magic sauce" exactly.

Unless Im concerned about contamination I don't bother with VOA's.

Photo buckets revenue model killed a bunch of available info for everyone.
Free service with ever increasing bandwidth on their side and no revenue didnt work for them - no surprise.

Used to be much easier to search for UOA's on your particular platform and see what you were working with.

No you get the "photo offline" gif.


UD
_________________________
Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C

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#4635587 - 01/15/18 10:14 AM Re: Do you find VOA's or UOA's more interesting? [Re: ZZman]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2910
Loc: Wet side WA
They both serve good purpose.
_________________________
2004 Corolla 122703
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: Castrol EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74202
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18

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