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Synthetic Oils With Lowest VII's ? #5345042 02/09/20 03:23 AM
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ChrisD46 Offline OP
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Research may indicate that higher VII's in engine oils can lead to an increase in engine deposits (more critical in GDI and Turbo engines) .
The above said , which oils below have the lower VII's in their oil make up / formula ?

1. Valvoline Advanced Synthetic 5W30
2. Mobil 1 5W30
3. Pennzoil Platinum 5W30
4. Castrol EDGE 5W30
5 .QSUD 5W30

*I picked readily available synthetic oils all with D1 / Gen 2 , SN+ ratings .


'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345048 02/09/20 04:22 AM
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hatt Offline
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Those oils in the 10W-30 flavor.


2013 F150 5.0, Delo 400 XSP 5W-40, Wix 57502
2010 Camry 2.5, PP 10W-30, Mobil1 M1C-251A
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345050 02/09/20 04:28 AM
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2020 Toyota Prius Prime XLE plug-in hybrid, 2ZR-FXE engine, ~ 4,000 mi
TGMO 0W-16 SN/RC Japan
OEM spin-on oil filter Japan
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345052 02/09/20 04:34 AM
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I can’t help you directly with your list. But I have three points to offer.

First the equivalent 10W30 should have less polymer VII than its 5W30 brother.

Second I look for the oil that has the lowest KV100 kinematic viscosity for the highest HTHS viscosity. As VII add more to kinematic viscosity than to HTHS viscosity.

Third I look for the lowest Noack volatility. As some (relatively) thicker oils are made from thin base oils all jacked up on polymer VII.

But you then have three problems too.
First few companies give you the data required for above and secondly they may have change base stock from Group III to Group IV which makes comparison more difficult. Third viscosity grades like 10W30 are naturally low in VII, especially the full synthetics, yet that is not an allowed Dexos grade, so you can’t get a D1-G2 10W30 no matter how good it is.


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345073 02/09/20 06:01 AM
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It's always been my understanding that if you want e.g. a 5W30 with less VII's, use a 10W30.


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Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345077 02/09/20 06:20 AM
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Char....I think you meant to say....
It's always been my understanding that if you want e.g. a 5W30 with less VII's (in a specific brand name), then use it's 10W30 offering.

Maybe I'm wrong and misunderstood your intent.


Keepa' Ya' Pistons, Valves & Injectors Clean

19' Hyundai SantaFe 2.4 GDI / 20' Kia Soul XLine 2.0 MPI - both Pennzoil Ultra Platinum 5W30 / Mobil1 Filters
04' Chevy Colorado Castrol 0W40 & Wix



Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345108 02/09/20 07:42 AM
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OK, fun adventure for a Sunday morning. I'll contribute info on QSUD. One anomalous thing is the kinematic viscosity at 100 C is actually higher with the 5W30 than with the 10W30. How that happened I'm not sure. (Typo?). Here you go. 5W30 first.

Quaker State 5W30.PNGQuaker State 10W30.PNG
Last edited by Snagglefoot; 02/09/20 07:43 AM.

If you want the job done right......do it yourself.
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345113 02/09/20 07:50 AM
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And here are the Pennzoil results. 5W30 first. These are not Euro type oils. I believe there is a typo here because for the 10W30 they describe a CCS viscosity at -30 C. That should read -25 C. Sheesh.

Pennzoil 5W30.PNGPennzoil 10W30.PNG
Last edited by Snagglefoot; 02/09/20 07:54 AM.

If you want the job done right......do it yourself.
Re: Synthetic Oils With Lowest VII's ? [Re: Snagglefoot] #5345116 02/09/20 07:56 AM
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Pat in Speedway Offline
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Originally Posted by Snagglefoot
OK, fun adventure for a Sunday morning. I'll contribute info on QSUD. One anomalous thing is the kinematic viscosity at 100 C is actually higher with the 5W30 than with the 10W30. How that happened I'm not sure. (Typo?). Here you go. 5W30 first.

Likely not a typo. Same can be said for Amsoil as well as Phillips 66 Shield Choice:
[Linked Image]
[Linked Image]


Last edited by Pat in Speedway; 02/09/20 08:01 AM.

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Re: Synthetic Oils With Lowest VII's ? [Re: Snagglefoot] #5345119 02/09/20 07:59 AM
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Triple_Se7en Offline
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Originally Posted by Snagglefoot
OK, fun adventure for a Sunday morning. I'll contribute info on QSUD. One anomalous thing is the kinematic viscosity at 100 C is actually higher with the 5W30 than with the 10W30. How that happened I'm not sure. (Typo?). Here you go. 5W30 first.

What's even weirder is the [email protected] for the QSUD 5w20 is way-way down to around 8.7. Seems strange that....
5w30 is 11.6
5w20 is 8.7


Keepa' Ya' Pistons, Valves & Injectors Clean

19' Hyundai SantaFe 2.4 GDI / 20' Kia Soul XLine 2.0 MPI - both Pennzoil Ultra Platinum 5W30 / Mobil1 Filters
04' Chevy Colorado Castrol 0W40 & Wix



Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345121 02/09/20 08:00 AM
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I got the rhythm. Mobil 1. 5W30 first. Same issue on the KV100. 5W30 has a higher viscosity than 10W30. WTH. I don't know if I would seek out a lower VII if it meant going with a lower KV100 viscosity.

Mobil 1 5W30.PNGMobil 1 10W30.PNG
Last edited by Snagglefoot; 02/09/20 08:05 AM.

If you want the job done right......do it yourself.
Re: Synthetic Oils With Lowest VII's ? [Re: Pat in Speedway] #5345124 02/09/20 08:04 AM
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Originally Posted by Triple_Se7en
Originally Posted by Snagglefoot
OK, fun adventure for a Sunday morning. I'll contribute info on QSUD. One anomalous thing is the kinematic viscosity at 100 C is actually higher with the 5W30 than with the 10W30. How that happened I'm not sure. (Typo?). Here you go. 5W30 first.

What's even weirder is the [email protected] for the QSUD 5w20 is way-way down to around 8.7. Seems strange that....
5w30 is 11.6
5w20 is 8.7


[/quote]

Well, they are both 30's. The 5w just means it would be thinner on the cold end, as I understand it.


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Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345140 02/09/20 08:25 AM
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ofelas Offline
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I continue to be impressed with the Amsoil 5w30 & 10w30's CCV & pour points, respectively. I'd like them to publish their MRV specs though.

Any idea what the Mobils' CCV & MRV are?

Can some kind soul calculate the Amsoil 10w30's base oil viscosity at 150c ?


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Re: Synthetic Oils With Lowest VII's ? [Re: Snagglefoot] #5345157 02/09/20 08:52 AM
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Originally Posted by Snagglefoot
I got the rhythm. Mobil 1. 5W30 first. Same issue on the KV100. 5W30 has a higher viscosity than 10W30. WTH. I don't know if I would seek out a lower VII if it meant going with a lower KV100 viscosity.

When looking at a finished oil take into consideration the viscosity improvers that give the final numbers


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2018 F350 6.2
Re: Synthetic Oils With Lowest VII's ? [Re: ChrisD46] #5345167 02/09/20 09:13 AM
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Originally Posted by ChrisD46
Research may indicate that higher VII's in engine oils can lead to an increase in engine deposits (more critical in GDI and Turbo engines) .
The above said , which oils below have the lower VII's in their oil make up / formula ?

1. Valvoline Advanced Synthetic 5W30
2. Mobil 1 5W30
3. Pennzoil Platinum 5W30
4. Castrol EDGE 5W30
5 .QSUD 5W30

*I picked readily available synthetic oils all with D1 / Gen 2 , SN+ ratings .


Is it really that simple? I'd bet a high quality full synthetic with higher VII would have potential to leave fewer engine deposits than a low VII conventional in the same engine. (Note I said I'd bet. I didn't say I know this for sure. Just betting on an educated guess.)


18 Jeep JLUR Wrangler 3.6 29k
15 Ford Transit 129k, Reman 3.5 @85k
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08 Jeep Wrangler 3.8 139k
04 Jeep Grand Cherokee 4.7 109k
99 Mercedes E430 Sport 99k
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