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#4495381 - 08/22/17 04:38 PM NOACK - Pennzoil Platinum Euro 5W-40
agpatel Offline


Registered: 06/04/07
Posts: 83
Loc: Greensboro, NC
Below is a NOACK results for Pennzoil Platinum Euro 5W-40 - from the same bottle I did a VOA from. NOACK value came in below anything I would of expected and wonder if its a highly variable test...

Link to VOA: https://bobistheoilguy.com/forums/ubbthr...o_5#Post4435754


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#4495425 - 08/22/17 05:26 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
Garak Online   content


Registered: 12/05/09
Posts: 24612
Loc: Regina, Saskatchewan, Canada
It is highly variable, but that seems a bit much. wink
_________________________
Plain, simple Garak.

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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#4495474 - 08/22/17 06:18 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2569
Loc: MN
I've heard NOACK is hard to nail down. Variable, as they say.
This is ridiculous.

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#4495564 - 08/22/17 08:14 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Noack of 3.6.
Wonder if they repeat the test if they have doubts.
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4495580 - 08/22/17 08:33 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: merconvvv]
kschachn Offline


Registered: 12/26/05
Posts: 9417
Loc: Upper Midwest
Originally Posted By: merconvvv
Noack of 3.6.
Wonder if they repeat the test if they have doubts.

ASTM D5800 would specify a statistically valid number of samples either in the test itself or in some ancillary publication. It would also state if the test is prone to unusual variability.

It would also give reporting requirements for accuracy, which I assume Precision Petroleum Labs has followed when giving their result.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
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#4495582 - 08/22/17 08:36 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
The pp 5w40 is probably close to a 10w40. Add in lil variability n u get 3.6 ????
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4495618 - 08/22/17 09:20 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
agpatel Offline


Registered: 06/04/07
Posts: 83
Loc: Greensboro, NC
I have asked what procedure was used, there are three options per the spec (A,B, and C) - see below regarding potential difference. If Procedure A was used it would explain the low value plus variability. I have typically seen B when looking at oil specs.

Quote:
1.1 This test method covers three procedures for determining the evaporation loss of lubricating oils (particularly engine oils). Procedure A uses the Noack evaporative tester equipment; Procedure B uses the automated non-Woods metal Noack evaporative apparatus; and Procedure C uses Selby-Noack volatility test equipment. The test method relates to one set of operating conditions but may be readily adapted to other conditions when required.

1.2 Noack results determined using Procedures A and B show consistent differences. Procedure A gives slightly lower results versus Procedure B on formulated engine oils, while Procedure A gives higher results versus Procedure B on basestocks.

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#4496016 - 08/23/17 10:29 AM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
agpatel Offline


Registered: 06/04/07
Posts: 83
Loc: Greensboro, NC
Did confirm that Method A was used.

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#4496138 - 08/23/17 01:39 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35882
Loc: Great Lakes
Yeah, that seems low. It should be around 6.2% according to SOPUS.
_________________________
'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)

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#4496154 - 08/23/17 02:03 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: agpatel]
drtyler Offline


Registered: 01/04/06
Posts: 406
Loc: GA
Maybe the formulation changed to pass the newest BMW LL-01 certification? I remember one poster indicated the test had changed fairly recently.

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#4611927 - 12/23/17 08:27 AM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: Quattro Pete]
JHZR2 Offline



Registered: 12/14/02
Posts: 41795
Loc: New Jersey
Originally Posted By: Quattro Pete
Yeah, that seems low. It should be around 6.2% according to SOPUS.


Remind me, did SOPUS actually provide that value? Thought it was from a Russian site.

Trying to determine my way ahead for oil in my 135, and a 6ish% NOACK is one of my criteria.

OP, thanks for doing this!

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#4616077 - 12/27/17 05:47 PM Re: NOACK - Pennzoil Platinum Euro 5W-40 [Re: JHZR2]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35882
Loc: Great Lakes
Originally Posted By: JHZR2
Originally Posted By: Quattro Pete
Yeah, that seems low. It should be around 6.2% according to SOPUS.


Remind me, did SOPUS actually provide that value? Thought it was from a Russian site.

It was provided to me via email from a SOPUS product manager. It was a couple of years ago though, so who knows if it's still applicable.
_________________________
'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)

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