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#4619987 - 12/31/17 05:51 PM PP D1G2 vs QSUD D1G2 viscosity differences..
jdavis Offline


Registered: 12/22/05
Posts: 675
Loc: New England
https://bobistheoilguy.com/forums/ubbthr...1G2#Post4573299

https://bobistheoilguy.com/forums/ubbthr...Dur#Post4546402

Noticed the new formulations have quite different viscosity at 100C - any thoughts as to why that would be? In the past everyone figured that they must be so similar, even going as far as saying they believe QSUD might use the same GTL base however what do you think now?

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#4620206 - 01/01/18 12:15 AM Re: PP D1G2 vs QSUD D1G2 viscosity differences.. [Re: jdavis]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 18170
Loc: Dallas,Tx USA
I'm really liking the QSUD in my Accord. I may try it in my 300ZX next oil change.
_________________________
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
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#4620236 - 01/01/18 01:17 AM Re: PP D1G2 vs QSUD D1G2 viscosity differences.. [Re: jdavis]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: jdavis
any thoughts as to why that would be? In the past everyone figured that they must be so similar, even going as far as saying they believe QSUD might use the same GTL base however what do you think now?


Obviously, there is either a bit of difference in the base stocks, or the additives (pour-point depressant and viscosity improvers?)

But if you aren't in the know and don't have the "recipe"..... it would be really hard to nail down the cause.
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#4620340 - 01/01/18 08:14 AM Re: PP D1G2 vs QSUD D1G2 viscosity differences.. [Re: Linctex]
jdavis Offline


Registered: 12/22/05
Posts: 675
Loc: New England
Originally Posted By: Linctex
Originally Posted By: jdavis
any thoughts as to why that would be? In the past everyone figured that they must be so similar, even going as far as saying they believe QSUD might use the same GTL base however what do you think now?


Obviously, there is either a bit of difference in the base stocks, or the additives (pour-point depressant and viscosity improvers?)

But if you aren't in the know and don't have the "recipe"..... it would be really hard to nail down the cause.


I think so too judging by the flash points of both..

I also think the PP would be less shear prone


Edited by jdavis (01/01/18 08:15 AM)

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#4620395 - 01/01/18 09:32 AM Re: PP D1G2 vs QSUD D1G2 viscosity differences.. [Re: jdavis]
crainholio Offline


Registered: 10/31/03
Posts: 174
Loc: NJ
They've reduced moly quite a bit, still more than the majority of the field but a disappointing hit. The lower calcium isn't surprising given the whole low speed pre-ignition (LSPI) requirement of D1G2 but also disappointing. I have enough stashed while I wait for a few UOA data points to see how these new formulations perform.

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#4620411 - 01/01/18 09:47 AM Re: PP D1G2 vs QSUD D1G2 viscosity differences.. [Re: crainholio]
jdavis Offline


Registered: 12/22/05
Posts: 675
Loc: New England
Originally Posted By: crainholio
They've reduced moly quite a bit, still more than the majority of the field but a disappointing hit. The lower calcium isn't surprising given the whole low speed pre-ignition (LSPI) requirement of D1G2 but also disappointing. I have enough stashed while I wait for a few UOA data points to see how these new formulations perform.


Hopefully it's just a different type of moly.. it's on par with Mobil 1 numbers I see


Edited by jdavis (01/01/18 09:51 AM)

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