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#4554458 - 10/25/17 06:29 PM Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi)
wemay Online   happy


Registered: 04/04/12
Posts: 8579
Loc: Southeast Florida
Interesting Graphs...


LSPI in Turbo Direct Injection applications:

From: http://www.infineuminsight.com/insight/jun-2017/lspi-and-lubricant-auto-ignition





Intake Valve and Combustion Deposits (non-turbo Direct Injection)

From: http://www.pecj.or.jp/japanese/overseas/conference/pdf/conference12-19.pdf

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#4554471 - 10/25/17 06:42 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
bbhero Offline


Registered: 03/20/15
Posts: 4373
Loc: Virginia
What say you here sir?? smile

I say it would appear a synthetic blend may well be the best course of action. Pennzoil Gold or Valvoline Maxlife or Quaker State Enhanced Durability, or Havoline HM Synthetic blend.


Edited by bbhero (10/25/17 06:43 PM)
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#4554474 - 10/25/17 06:44 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: bbhero]
wemay Online   happy


Registered: 04/04/12
Posts: 8579
Loc: Southeast Florida
Originally Posted By: bbhero
What say you here sir?? smile

I say it would appear a synthetic blend may well be the best course of action. Pennzoil Gold or Valvoline Maxlife or Quaker State Enhanced Durability, or Havoline HM Synthetic blend.


That is an excellent point. And, if you look at the current descriptions of many so-called Conventional Oils on their respective websites, they claim to be "synthetic blends" as well.
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#4554482 - 10/25/17 06:51 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
d00df00d Offline


Registered: 10/20/05
Posts: 11126
Loc: PA
BITOG thread search result on slide 3. Someone's famous. :]
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#4554486 - 10/25/17 06:56 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: d00df00d]
wemay Online   happy


Registered: 04/04/12
Posts: 8579
Loc: Southeast Florida
Originally Posted By: d00df00d
BITOG thread search result on slide 3. Someone's famous. :]


Haha, yes i saw that.
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#4554511 - 10/25/17 07:26 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
Mainia Offline


Registered: 04/06/15
Posts: 162
Loc: Upper midwest
It seems to me Redline or Motul Ester is the sweet spot, or is the ticket here. eek

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#4554543 - 10/25/17 08:02 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
bbhero Offline


Registered: 03/20/15
Posts: 4373
Loc: Virginia
True indeed. Valvoline, Havoline DS and Castrol all mention that in their conventional oils. I'd bet $10 those may well have been that way since the start of API SN. Just not mentioned before this last yr or so.
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#4554638 - 10/25/17 09:36 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
CT8 Offline


Registered: 10/09/14
Posts: 10547
Loc: Idaho
We need high octane oil. I doubt the study gives any hard solutions.
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#4554639 - 10/25/17 09:37 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: Mainia]
CT8 Offline


Registered: 10/09/14
Posts: 10547
Loc: Idaho
Originally Posted By: Mainia
It seems to me Redline or Motul Ester is the sweet spot, or is the ticket here. eek
I am not sure of the GPV content in Redline oil.
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#4554652 - 10/25/17 10:04 PM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
FlyPenFly Offline


Registered: 08/04/04
Posts: 241
Loc: San Diego
Thanks for the second link. Intake carbon deposits are something I worry about. I'm confused though if I'd be better off using which oil. It seems though more frequent changes are crucial.
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#4554739 - 10/26/17 12:12 AM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: Mainia]
Dyusik Offline


Registered: 09/26/14
Posts: 1856
Loc: US-WA
Originally Posted By: Mainia
It seems to me Redline or Motul Ester is the sweet spot, or is the ticket here. eek


Gp5 can be anything. Could be pag for all we know. And ester be the onbe that is near gp2 performance.
Also note the 7.5w, and slides say that there is a lack of supporting evidence. This whole thing looks like it was made specifically for bitog to bicker over.
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#4554741 - 10/26/17 12:13 AM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: FlyPenFly]
wemay Online   happy


Registered: 04/04/12
Posts: 8579
Loc: Southeast Florida
Originally Posted By: FlyPenFly
Thanks for the second link. Intake carbon deposits are something I worry about. I'm confused though if I'd be better off using which oil. It seems though more frequent changes are crucial.


That's my takeaway as well. A quality Convl (2.4L) or Blend at under 5K mile oci.
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#4554841 - 10/26/17 06:12 AM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
ChrisD46 Offline


Registered: 09/10/10
Posts: 1838
Loc: GA.
Unless I lived in Montana , I would simply forgo the turbo engines and not deal with potential LSPI ... Besides , where I live they are a speeding ticket magnet !
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#4554910 - 10/26/17 08:07 AM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: wemay]
wemay Online   happy


Registered: 04/04/12
Posts: 8579
Loc: Southeast Florida
The Santa fe 2.0T platform hasn't really had the issue from what I've been able find online. But i will only use an oil with dex1Gen2 or ACEA approval in it to be safe from now on. The Sonata 2.4L is a different animal altogether.
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#4554996 - 10/26/17 10:23 AM Re: Grp II vs Grp III (LSPI, Deposits in T-GDi, GDi) [Re: d00df00d]
CT8 Offline


Registered: 10/09/14
Posts: 10547
Loc: Idaho
Originally Posted By: d00df00d
BITOG thread search result on slide 3. Someone's famous. :]
Help me out on this.
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