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#2460962 - 12/12/11 10:58 PM Valvoline vs. Pennzoil Conventional (PYB)
johnsmellsalot Offline


Registered: 07/02/11
Posts: 526
Loc: Texas
I'm wondering which oil returns better used oil analyses.
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1999 Buick Century 180,000 miles (first car)
2008 Chrysler PT Cruiser 70,000 miles

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#2460964 - 12/12/11 10:59 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
OVERKILL Offline


Registered: 04/28/08
Posts: 26516
Loc: Ontario, Canada
Originally Posted By: johnsmellsalot
I'm wondering which oil returns better used oil analyses.


You can't compare UOA's on different oils.

/Thread
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#2460967 - 12/12/11 11:03 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
LoneRanger Offline


Registered: 07/02/07
Posts: 1458
Loc: Midwest
Check out a VOA of both side by side here:

http://www.pqiamerica.com/testresultssep2011.html

PYB seems the stronger oil based on this VOA.

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'09 Subaru Forester .. (Kendall GT-1 Syn Blend 5W30)
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#2460969 - 12/12/11 11:04 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
mongo161 Offline


Registered: 07/11/10
Posts: 3216
Loc: Coney Island, NY
Both oils are great quality oils in conventional.
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#2460970 - 12/12/11 11:05 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: OVERKILL]
Big_Kat Offline


Registered: 10/31/09
Posts: 525
Loc: Iowa
Originally Posted By: OVERK1LL
Originally Posted By: johnsmellsalot
I'm wondering which oil returns better used oil analyses.


You can't compare UOA's on different oils.

/Thread


Isn't that like saying you can't compare which medicine works better overall in a medical study. I'm sure we could compile all the UOAs on the two oils and do an ANOVA test to determine if there is a difference.
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#2460972 - 12/12/11 11:08 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: LoneRanger]
johnsmellsalot Offline


Registered: 07/02/11
Posts: 526
Loc: Texas
I am very familiar with that website. I like that Pennzoil has the most moly. I was wondering about Valvoline because It doesn't have hardly any moly in it.
Originally Posted By: LoneRanger
Check out a VOA of both side by side here:

http://www.pqiamerica.com/testresultssep2011.html

PYB seems the much stronger oil based on this VOA.

_________________________
1999 Buick Century 180,000 miles (first car)
2008 Chrysler PT Cruiser 70,000 miles

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#2460974 - 12/12/11 11:10 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: Big_Kat]
abycat Offline


Registered: 12/06/10
Posts: 1252
Loc: grande prairie AB
The mobil super looks really good on paper as well.
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#2460980 - 12/12/11 11:16 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
LoneRanger Offline


Registered: 07/02/07
Posts: 1458
Loc: Midwest
Well, moly isn't everything. Ti is the new moly. Maybe.
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#2460981 - 12/12/11 11:17 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: Big_Kat]
OVERKILL Offline


Registered: 04/28/08
Posts: 26516
Loc: Ontario, Canada
Originally Posted By: Big_Kat
Originally Posted By: OVERK1LL
Originally Posted By: johnsmellsalot
I'm wondering which oil returns better used oil analyses.


You can't compare UOA's on different oils.

/Thread


Isn't that like saying you can't compare which medicine works better overall in a medical study. I'm sure we could compile all the UOAs on the two oils and do an ANOVA test to determine if there is a difference.


No, because unless you are going to be doing tear-downs (real data) the "data" you end up with is meaningless.

You can perform VOA's and speculate as to an oil's potential capabilities/strengths. You can compare TBN retention and determine which oil is the longest lasting and perhaps base your oil choice (I can run this oil longer!) on that. But you can't compare which oil is giving you the "best protection" without actual wear data, something that cannot be extracted from UOA's. It requires tear-downs and actual measurements.
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#2460987 - 12/12/11 11:33 PM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
I agree Id use Mobil over those two
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1998 Saturn sl2 -mobil super 5000 5w30


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#2460996 - 12/13/11 12:22 AM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
oilmaven Offline


Registered: 05/25/05
Posts: 658
Loc: Northern Michigan
Although I've never been a big fan of Valvoline and it looks "weak", it returns surprisingly good UOA's. There does seem to be more than meets the eye when it comes to the quality of the oil based on the UOA's vs. the info. one sees on paper. My choice in a conventional oil has always been PYB but any of these will serve well. I also like the specs and UOA's I've seen for Quaker State.
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#2460998 - 12/13/11 12:26 AM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: oilmaven]
ltslimjim Offline


Registered: 08/06/10
Posts: 5143
Loc: PL&F
Originally Posted By: oilmaven
Although I've never been a big fan of Valvoline and it looks "weak", it returns surprisingly good UOA's. There does seem to be more than meets the eye when it comes to the quality of the oil based on the UOA's vs. the info. one sees on paper. My choice in a conventional oil has always been PYB but any of these will serve well. I also like the specs and UOA's I've seen for Quaker State.


...and it smells good, too! thumbsup

Seriously! grin2
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#2461073 - 12/13/11 06:37 AM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: OVERKILL]
Radman Offline


Registered: 11/24/10
Posts: 485
Loc: Detroit, Michigan
Originally Posted By: OVERK1LL
You can't compare UOA's on different oils.


I am on a Nissan forum and my engine the 35VQDE is tough on shearing oil. All of us pooled our UOA's to find out which oils performed better. Most oils sheared out of grade. Castrols did the best with GTX out performing many of the synthetics.

Granted not many engines are as hard on oil as the 35VQDE. Although it is every mans perogative to compare and purchase whatever they want.
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#2461075 - 12/13/11 06:40 AM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: OVERKILL]
Merkava_4 Offline


Registered: 01/30/07
Posts: 9413
Loc: Clovis, CA
Originally Posted By: OVERK1LL

You can't compare UOA's on different oils.

/Thread


Yes you can.

/OVERK1LL

crackmeup LOL

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#2461077 - 12/13/11 06:46 AM Re: Valvoline vs. Pennzoil Conventional (PYB) [Re: johnsmellsalot]
Hollow Offline


Registered: 02/29/08
Posts: 1081
Loc: the South
Based solely on comparing the additives used (see the most recent PQIA test results), and the fact that I have an engine that seems to prefer a higher content of Moly in the oil, I would go with PYB.

When I find a product I'm happy with, I stick with it. Most of my Subaru's life has been on SOPUS oils.


Edited by HollowEyes (12/13/11 06:47 AM)
_________________________
2003 Subaru Outback: 2.5 H4 143K
QSUD 5w30, Maxlife ATF, Mobil1 75w90
1992 Oldsmobile 88 3.8 V6 75K
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