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#4299545 - 01/11/17 11:56 AM 2012 WRX Oil Choice with regard to LSPI
dirty_projection Offline


Registered: 01/10/17
Posts: 12
Loc: MI - Michigan
Been researching a lot of oils lately and still having trouble deciding on a good robust oil for MY12 WRX which is otherwise stock. Driving habits tend to be a bit rougher than your average user I would say, but not flat out abuse. Looking into M1 0w40 and Castrol 0w30/40.

My concern with both of these oils is their calcium content with respect to LSPI events. I also would rather not have a relatively thin oil in regards to fuel dilution. I would like to keep economy, but with protection to my bearings for when I go flat out. I have no problem with a 5w40 oil, but am trying to stay away from diesel designed oils like rt6, etc due to high calcium levels for soot control in their original design. At work we religiously use M1 5w30/0w20 in most applications from small gas i4 turbos to v6 twin turbos. I haven't been able to find a VOA on a recent M1 5w30 formulation. From what I could find M1 0w40 has high calcium too. I currently have zero oil consumption using Subaru OEM (Idemistu 5w30) from day 1 and ~65k. Going to do an OA through blackstone on my next change too to gauge the overall health.

Any other suggestions welcome. Am trying to stay in the 5w30 category if I can. Other oils I'm looking at are Motul Xclean 5w30, but again can't find a VOA on that. Thanks,

Zak

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#4299555 - 01/11/17 12:04 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 2763
Loc: New England
You shouldn't have to worry about LSPI because your engine is not direct injection...LSPI seems to be a DIT problem.
Luckily, you should be able to use pretty much what you want!

My '14 FXT was recalled for LSPI and I have been sticking with M1 products. M1 0W40 is the only product in the line that I am aware of having a large calcium dose. Everything I have seen for M1 5W30, including the EP and ESP flavors, has shown low calcium...the ESP doesn't even use magnesium to replace some of the calcium and has a low starting TBN as a result.


Edited by Virtus_Probi (01/11/17 12:06 PM)
_________________________
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Last Change;
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#4299560 - 01/11/17 12:10 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
cmhj Offline


Registered: 10/20/06
Posts: 1595
Loc: SE Pa
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#4299600 - 01/11/17 12:55 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
dirty_projection Offline


Registered: 01/10/17
Posts: 12
Loc: MI - Michigan
Ah for some reason I could've sworn they went direct injection in 2011, but that makes more sense. And yes it's mainly a direct injection problem. It's something all the automakers are struggling with these days from what I understand. Quite interesting if you have access to the data; unfortunately I am not at liberty to share...The dexos1 rating is the only one I know that has LSPI conditions to be met for oil design btw, so I'd stick with that if you have known LSPI issues. Lucky if it didn't take your piston out! smile Thanks for the info

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#4299638 - 01/11/17 01:29 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
wemay Offline


Registered: 04/04/12
Posts: 7655
Loc: Miami, FL
Yes, we have seen quite a bit of data from reputable sources concerning LSPI. Chevron Ornite, SAE and Lubrizol to name a few. But it sounds like your application is outside this scope. Thankfully.
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#4299675 - 01/11/17 02:00 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 608
Loc: Oregon
I don't think you could go wrong with any LL-01 approved oil for your EJ engine. It is probably the hardest oil spec to meet and is designed with small turbo engines in mind (BMW N20). Personal preference, I would stick with Castrol, Motul, or Pennzoil. Euro 5W-30s are a fair amount thicker than a dexos 5W-30.


Edited by 1JZ_E46 (01/11/17 02:00 PM)
_________________________
2007 BMW X5 4.8i, 98K: Castrol EDGE 0W-40, Mann
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#4299761 - 01/11/17 03:47 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
Ohle_Manezzini Offline


Registered: 07/05/16
Posts: 666
Loc: Pindorama
2012 still an EJ? No.

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#4299764 - 01/11/17 03:51 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: Ohle_Manezzini]
bluesubie Offline


Registered: 08/04/03
Posts: 2207
Loc: NJ
Originally Posted By: Ohle_Manezzini
2012 still an EJ? No.

Yep.
_________________________
'04 Subaru Forester 2.5XT
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#4299818 - 01/11/17 04:59 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
Dan55 Online   content


Registered: 06/07/08
Posts: 885
Loc: Fernandina Beach FL
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#4299819 - 01/11/17 05:00 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
Dyusik Offline


Registered: 09/26/14
Posts: 1528
Loc: US-WA
Originally Posted By: dirty_projection
Been researching a lot of oils lately and still having trouble deciding on a good robust oil for MY12 WRX which is otherwise stock. Driving habits tend to be a bit rougher than your average user I would say, but not flat out abuse. Looking into M1 0w40 and Castrol 0w30/40.

My concern with both of these oils is their calcium content with respect to LSPI events. I also would rather not have a relatively thin oil in regards to fuel dilution. I would like to keep economy, but with protection to my bearings for when I go flat out. I have no problem with a 5w40 oil, but am trying to stay away from diesel designed oils like rt6, etc due to high calcium levels for soot control in their original design. At work we religiously use M1 5w30/0w20 in most applications from small gas i4 turbos to v6 twin turbos. I haven't been able to find a VOA on a recent M1 5w30 formulation. From what I could find M1 0w40 has high calcium too. I currently have zero oil consumption using Subaru OEM (Idemistu 5w30) from day 1 and ~65k. Going to do an OA through blackstone on my next change too to gauge the overall health.

Any other suggestions welcome. Am trying to stay in the 5w30 category if I can. Other oils I'm looking at are Motul Xclean 5w30, but again can't find a VOA on that. Thanks,

Zak

RT6 is the lowest Ca formulation I've ever seen.
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#4299821 - 01/11/17 05:04 PM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
E150GT Offline


Registered: 03/11/12
Posts: 925
Loc: San Antonio, TX
I just googled LSPI and now I'm wondering does this only occur in direct injected turbo engines or any direct injection engine?
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#4300096 - 01/12/17 01:11 AM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
dirty_projection Offline


Registered: 01/10/17
Posts: 12
Loc: MI - Michigan
Quote:
I just googled LSPI and now I'm wondering does this only occur in direct injected turbo engines or any direct injection engine?


It's mainly due to a lot of increased pressures in the cylinder and causes ignition that is uncontrolled and it happens before the spark, so you have ignition before the spark occurs. When the spark occurs it then ignites the mixture even more and causes pressures that are far beyond design scope for small displacement turbo applications. It kind of acts like a diesel cycle where the pressure ignites the mixture, but then you add spark to the factor and it basically acts like a small bomb. It is not uncommon for these instances to completely melt through the piston creating a hole in the general middle location of the piston. As for why, well that's still a theory at this point. There isn't a huge amount of concrete proof to say exactly why from what I know. Maybe someone with more direct hands on experience could elaborate more as I am fairly new to this research.

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#4300097 - 01/12/17 01:34 AM Re: 2012 WRX Oil Choice with regard to LSPI [Re: Dyusik]
dirty_projection Offline


Registered: 01/10/17
Posts: 12
Loc: MI - Michigan
Originally Posted By: Dyusik
RT6 is the lowest Ca formulation I've ever seen.


See with recent RT6 changes I have been hesitant to use that, plus I am curious about the RT6 multi vehicle use in 5w30.

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#4300189 - 01/12/17 07:28 AM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
bluesubie Offline


Registered: 08/04/03
Posts: 2207
Loc: NJ
Originally Posted By: dirty_projection
Originally Posted By: Dyusik
RT6 is the lowest Ca formulation I've ever seen.


See with recent RT6 changes I have been hesitant to use that,.

Why? Because of higher ZDDP?


Edited by bluesubie (01/12/17 07:38 AM)
_________________________
'04 Subaru Forester 2.5XT
Mobil 1 0W-40

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#4300202 - 01/12/17 07:40 AM Re: 2012 WRX Oil Choice with regard to LSPI [Re: dirty_projection]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 2763
Loc: New England
I looked into RT6 a while back because it was so popular with WRX/FXT drivers, but I wasn't too impressed with the NOACK from the PQIA analysis (12.8%) and its CCS viscosity was about 50% higher than M1 5W30 at -30C. I did like the low calcium dose!

http://www.pqiamerica.com/June%202014/shellrotellat6.htm
_________________________
2014 Forester XT, 70000 miles
Last Change;
M1 5W30 AP
Tokyo Roki 15208AA170 filter

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