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#4504183 - 09/01/17 09:02 AM VWB vs PYB vs Castrol GTX: Synthetic content?
HoosierJeeper Offline


Registered: 11/23/16
Posts: 1276
Loc: WI
It seems like VWB and Castrol GTX are starting to use synthetic blends a bit for the basic oils, is Pennzoil doing the same with PYB? (side question, would that mean Pennzoil HM is too)?

Just curious...couldn't find any more recent threads.

Thanks!
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15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)

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#4504197 - 09/01/17 09:11 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
CT8 Offline


Registered: 10/09/14
Posts: 11008
Loc: Idaho
Define synthetic. There will be what is needed to meet the spec.
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#4504207 - 09/01/17 09:18 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
fenixguy Offline


Registered: 02/08/17
Posts: 307
Loc: NC
The more time I spend on this forum, the less I know about conventional vs. synthetic. grin I've determined that it's mostly marketing.

Anyway, just dropping by to follow. popcorn2
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'16 Frontier SV 4x4-PP/Nissan OEM
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#4504215 - 09/01/17 09:27 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
HoosierJeeper Offline


Registered: 11/23/16
Posts: 1276
Loc: WI
So let's take Maxlife blend for example...that's Group II+, correct? And it's 30% "synthetic" oil IIRC. So are VWB and PYB Group II+ as well? And does that imply they have a similar amount of "synthetic" in them?

Trying to get on to PQIA's site but it's not loading for me.
_________________________
15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)

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#4504229 - 09/01/17 09:36 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
Bgallagher Offline


Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
I believe that for the SN rating it would require some synthetic base but what % is one of life's mysteries
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#4504234 - 09/01/17 09:45 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
People get too hung up on synthetic vs non. Unless you're running extended oci it just doesn't matter. The fuel diluting DI engines have a lot of people changing at 5k anyway when the oil itself could go to 7500-10k if it wasn't diluted.

It just doesn't matter. Particularly if it meets dexos1.

If you have a warranty you should follow the OLM which seems to have many people dumping around 7500 miles.

SN rated Merlin's Unicorn Lube, will perform just like Penzoil conventional, which is also an SN rated lube
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2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4504266 - 09/01/17 10:20 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: SilverFusion2010]
Bottom_Feeder Offline


Registered: 12/07/08
Posts: 3013
Loc: Occupied Virginia
Originally Posted By: SilverFusion2010
SN rated Merlin's Unicorn Lube, will perform just like Penzoil conventional, which is also an SN rated lube

Does Walmart carry that?

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#4504273 - 09/01/17 10:30 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
In the other universe yeah
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#4504303 - 09/01/17 11:00 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
A lot of us were guessing that this sample of PYB 10W30 must have had a significant synthetic content with those NOACK loss results...

http://www.pqiadata.org/Pennzoil10W30.html
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2014 Forester XT, 80500 miles
Last Change;
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#4504351 - 09/01/17 11:40 AM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
beanoil Offline


Registered: 10/17/04
Posts: 2956
Loc: Midwest, Illinois
Man ya gotta watch what you say...
Someone doesn't know what Unicorn Lube really is.
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beanoil: Tough under heat, real dirty afterwards.

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#4504376 - 09/01/17 12:05 PM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: beanoil]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
Originally Posted By: beanoil
Man ya gotta watch what you say...
Someone doesn't know what Unicorn Lube really is.


Merlin used his Unicorn Lube to help Arthur get the sword out of the stone...
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4504385 - 09/01/17 12:24 PM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
Char Baby Offline


Registered: 05/25/05
Posts: 10028
Loc: ROCHESTER, NY
With most brands of conventional motor oil, 5w30 & 5w30 do have some GrpIII synthetic oil blended in. Less so w/ 10w30 & 10w40 etc. however they may as well, such as is suspected with the PQIA sample of PYB 10W30 that was mentioned.


Edited by Char Baby (09/01/17 12:29 PM)
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#4504389 - 09/01/17 12:32 PM Re: VWB vs PYB vs Castrol GTX: Synthetic content? [Re: HoosierJeeper]
bbhero Offline


Registered: 03/20/15
Posts: 4627
Loc: Virginia
I have postulated that it is somewhere between 10-30%. Enough to drop the volatility below the limit of 15%. Sometimes it likely is a much higher percentage like when Pennzoil 5w20 was at 6.8% for a "conventional" oil when tested by PQIA. The latest Castrol GTX Ultraclean 5w20 was around 12.6% and the PDS for the 5w30 states about the same. Which could possibly mean the percentage of group three is in the higher end of my guess. Valvoline Maxlife red bottle is at 40-50% full synthetic and it's NOACK is usually around 12% or a bit lower. So based upon that it would seem to be reasonable to hypothesize that their VWB is around 10-20% for a NOACK result of around 14%.
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