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#3414143 - 07/04/14 01:15 AM Oil suggestions for supercharged Subaru BRZ
Cjsporl Offline


Registered: 05/27/14
Posts: 26
Loc: New Jersey
Hey guys I was looking for a suggestion in what to run in A 2013 BRZ

Forced Induction Type: vortech Supercharger

Compression: over 20:1
stock compression 12:1
max boost 11psi
redline: 7500rpm
factory horsepower : 200
current wheel horse power: 300 (mustang dyno)
Wheel torque: 245
Factory Weight: 0W20
Odometer: 17,000? (I have to look)

I'm looking for suggestions on what oil you would put in this car and what weight. I have mostly used mobil 1 extended performance 0w-20 and 5w-30 in my car. This car is a daily driver that occasionally sees a track day and is driven fairy aggressive daily.

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#3414149 - 07/04/14 01:26 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
901Memphis Offline


Registered: 08/14/10
Posts: 10912
Loc: Northern Kentucky
Mobil 1 0W40 European Formula

I bet that thing is a blast
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2002 Buick Century 125k - Built 4T65e(Maxlife) - Syn Frankenbrew + XG 3387A
1998 Nissan Altima 335k - 5MT - M1 HM 5w30/Fram Ultra XG7317+MOS+ATP 205

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#3414159 - 07/04/14 01:50 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: 901Memphis]
Cjsporl Offline


Registered: 05/27/14
Posts: 26
Loc: New Jersey
I think the bearing clearance is a bit tight to even consider a 40 weight. I mean I run a 40 weight in my 350 chevy.

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#3414179 - 07/04/14 06:02 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
Oil Changer Offline


Registered: 08/28/06
Posts: 2297
Loc: Michigan
M1 0W-40.

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#3414263 - 07/04/14 08:24 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
05LGTLtd Offline


Registered: 03/04/13
Posts: 947
Loc: Va
'Thick' Caterham blend.
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2005 Legacy GT, Synpower 5w-40
2010 Forester SOHC, Edge 0w-30

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#3414267 - 07/04/14 08:29 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
Pablo Offline


Registered: 10/28/02
Posts: 46981
Loc: Duvall WA - Pacific NW USA
Amsoil EFM 5W-40 or HDD 5W-30. I've been following turbo and supercharged BRZ's on the Subie forums.

Contact me for pricing if interested.

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#3414280 - 07/04/14 08:45 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
bluesubie Offline


Registered: 08/04/03
Posts: 2082
Loc: NJ
There are some good uoa's on Red Line 0W-20 over on ft86club.com from a supercharged, tracked 86. I'd go with RL xW-20, Motul 300V 0W-20, Amsoil HDD 5W-30, Amsoil Dominator 5W-20, or a Euro xW-30 like Euro Castrol or Motul X-lite.

Pretty much any oil with an HTHS of 3.5 or higher OR a race oil. I presume you have an oil pressure gauge. You can also experiment with mixing to fine tune your choice if you feel like playing backyard oil blender.

-Dennis


Edited by bluesubie (07/04/14 08:47 AM)
_________________________
'04 Subaru Forester 2.5XT
Mobil 1 0W-40

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#3414311 - 07/04/14 09:28 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
bigjl Offline


Registered: 09/06/12
Posts: 1775
Loc: London, England
Originally Posted By: Cjsporl
I think the bearing clearance is a bit tight to even consider a 40 weight. I mean I run a 40 weight in my 350 chevy.


Not sure that is relevant, I ran Mobil 1 0w40 in the wife's Clio on many occasions and it is just a 1.5dci

I would tend to go thick if used hard.

I think the Subaru community in the UK runs 5w50 in mildly tuned WRXs.

I personally think a supercharged engine is under less streets than a turbo so I think Mobil 1 0w40 is a good fit.
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#3414358 - 07/04/14 10:30 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: bigjl]
john_pifer Offline


Registered: 07/08/12
Posts: 1087
Loc: Nashville, TN via Memphis
Originally Posted By: bigjl
Originally Posted By: Cjsporl
I think the bearing clearance is a bit tight to even consider a 40 weight. I mean I run a 40 weight in my 350 chevy.


Not sure that is relevant, I ran Mobil 1 0w40 in the wife's Clio on many occasions and it is just a 1.5dci

I would tend to go thick if used hard.

I think the Subaru community in the UK runs 5w50 in mildly tuned WRXs.

I personally think a supercharged engine is under less streets than a turbo so I think Mobil 1 0w40 is a good fit.


Why do you think a turbo'd engine is under more stress than supercharged?
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16 WRX - PPPP 10W-30
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07 Yamaha YZ-250, Klotz, Rotella


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#3414370 - 07/04/14 10:41 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: bigjl]
ThirdeYe Offline


Registered: 02/23/07
Posts: 7968
Loc: Walker, MI
Originally Posted By: bigjl
Originally Posted By: Cjsporl
I think the bearing clearance is a bit tight to even consider a 40 weight. I mean I run a 40 weight in my 350 chevy.


Not sure that is relevant, I ran Mobil 1 0w40 in the wife's Clio on many occasions and it is just a 1.5dci

I would tend to go thick if used hard.

I think the Subaru community in the UK runs 5w50 in mildly tuned WRXs.

I personally think a supercharged engine is under less streets than a turbo so I think Mobil 1 0w40 is a good fit.


I've used Mobil 1 0W-40 in my Acura as well, with the 1.8. UOA came back great.
_________________________
99 Pontiac Firebird - 93k - Havoline 10W-30/Purolator PureOne PL10111
08 Scion tC - 122k - Pennzoil Platinum 5W-20/Fram XG4967

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#3414374 - 07/04/14 10:44 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
dparm Offline


Registered: 04/19/10
Posts: 13029
Loc: Chicago, IL
OP, what does the supercharger manufacturer recommend? I would start there.

Personally I think any name-brand 5w30 synthetic would do just fine.
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2011 BMW M3 sedan ZCP

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#3414417 - 07/04/14 11:35 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
Smokescreen Offline


Registered: 05/25/05
Posts: 2867
Loc: Alberta, Canada
Look at countries that have run heavily saturated supercharged/turbo engines like Australia and Europe for decades and 'heavily weight' that demographic. Oil being the life blood of this engine would be something I would 'not take lightly'. North America is only now starting to catch the forced induction wave compared to other regions in comparison.


Edited by Smokescreen (07/04/14 11:37 AM)
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09 Corolla 1.8L-300Kkms(187Kmi)-PP,Denso
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03 Sierra 6.0L-194Kkms(121Kmi)-F1,Delco

All with mpg > EPA

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#3414426 - 07/04/14 11:46 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: john_pifer]
geeman789 Offline


Registered: 04/13/14
Posts: 668
Loc: Western Canada
Originally Posted By: john_pifer


Why do you think a turbo'd engine is under more stress than supercharged?


The OIL gets beat up "more" in most turbo applications, thru heat and shear in the turbo bearing itself. A supercharger has its own oil supply, separate from the motor oil.

As for the engine itself, both are under boost, so stress levels should be very similar with both, if boost levels are the same.
_________________________
2011 SUBARU Impreza 5 spd manual / 2007 HONDA Odyssey


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#3414429 - 07/04/14 11:47 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: Cjsporl]
Shannow Offline


Registered: 12/12/02
Posts: 33487
Loc: Oz
Originally Posted By: Cjsporl
I think the bearing clearance is a bit tight to even consider a 40 weight.


That's interesting...what's the viscosity that's needed to get the oil into these clearances, and how hot would (say) a 0W20 have to be to get into the bearings ?

What keeps the bearings lubricated while the 20 is warming up enough to get in there ?

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#3414430 - 07/04/14 11:50 AM Re: Oil suggestions for supercharged Subaru BRZ [Re: bluesubie]
geeman789 Offline


Registered: 04/13/14
Posts: 668
Loc: Western Canada
Originally Posted By: bluesubie
There are some good uoa's on Red Line 0W-20 over on ft86club.com from a supercharged, tracked 86. I'd go with RL xW-20, Motul 300V 0W-20, Amsoil HDD 5W-30, Amsoil Dominator 5W-20, or a Euro xW-30 like Euro Castrol or Motul X-lite.

Pretty much any oil with an HTHS of 3.5 or higher OR a race oil. I presume you have an oil pressure gauge. You can also experiment with mixing to fine tune your choice if you feel like playing backyard oil blender.

-Dennis


Not recommending M1 5w30 ESP anymore....?
_________________________
2011 SUBARU Impreza 5 spd manual / 2007 HONDA Odyssey


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