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#1509978 - 06/24/09 01:16 PM Castrol GC 0w30 4K miles, Subaru WRX, 69K miles
TedMeyer Offline


Registered: 02/06/08
Posts: 37
Loc: AZ


Let me know if this is hard to read. This is a report using GC for 4,000 miles over the winter, so reasonably tame driving. The car is running an upsized turbo (18G), so making about 100hp more than the stock 233hp.

This fill was the first after an EngineRX treatment cycle, which you'll also see in the report. I used Castrol dino 10w40 for the "rinse" and Pennzoil Platinum synth for the "wash" phase (I ran the Pennzoil for ~2K miles, then added the EngineRX). I filled up with the Redline 5w40 again this time -- I had posted a couple UOAs to this board using Redline a while back where the lead had spiked a bit, but was told by Redline and others that was normal for a first go-round with RL.

Ted
_________________________
Ted Meyer
'04 Suzuki DR-Z400E
'02 Subaru WRX, 18G Turbo, 315awhp
'01 Ducati Monster 944
'00 Aprilia RS250
'87 Ferrari 328 GTS

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#1509985 - 06/24/09 01:21 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: TedMeyer]
Quattro Pete Offline


Registered: 10/30/02
Posts: 25916
Loc: Michigan
Why they're flagging the viscosity escapes me.
_________________________
'02 530i (PU 5W-40)
'08 C300 4Matic (M1 0W-40)
'13 F700 GS (BMW HP 15W-50)

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#1509992 - 06/24/09 01:27 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: Quattro Pete]
TedMeyer Offline


Registered: 02/06/08
Posts: 37
Loc: AZ
Yeah, they must not have picked up on the fact that it's GC and not the US stuff. It ended up exactly where I expected it to.... Though I have to say I was pleasantly surprised at how well the Castrol dino held up, though it was only in there for 3K miles.
_________________________
Ted Meyer
'04 Suzuki DR-Z400E
'02 Subaru WRX, 18G Turbo, 315awhp
'01 Ducati Monster 944
'00 Aprilia RS250
'87 Ferrari 328 GTS

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#1510031 - 06/24/09 02:06 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: TedMeyer]
addyguy Offline


Registered: 09/08/05
Posts: 13429
Loc: Canada
I agree that the GTX 10W-40 did very well for a modified engine. The GC did really well also - engine seems to like Castrol oils!

I think if you even stretched your GC runs to 6-7k, it would still do well.
_________________________
2003 Mazda Tribute LX V-6, 172k miles.
Oil: QS Defy 5W-20; Fram Ultra XG2 filter.

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#1510054 - 06/24/09 02:26 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: TedMeyer]
friendly_jacek Offline


Registered: 05/04/03
Posts: 5343
Loc: southeast US
So, the lead at 13 and copper at 50 was "normal" for redline? Why?

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#1510071 - 06/24/09 02:40 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: Quattro Pete]
ccs v2.0 Offline


Registered: 08/07/06
Posts: 567
Loc: IL
 Originally Posted By: Quattro Pete
Why they're flagging the viscosity escapes me.

Blackstone's typical boiler plate comments.
_________________________
The light at the end of the tunnel is the Recession Freight Express Train coming at us. - Al, 11/07/07

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#1510080 - 06/24/09 02:44 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: friendly_jacek]
badtlc Offline


Registered: 06/08/06
Posts: 3782
Loc: KC
 Originally Posted By: friendly_jacek
So, the lead at 13 and copper at 50 was "normal" for redline? Why?


I think it is from the leaching caused by their esters.
_________________________
2007 Ford Escape XLS 2.3L ATX Kendall 5w-20, MC Fl910s, 110k+
2012 Mazda 3i Skyactiv PP 5W-20, 6spd MTX Redline MTL, 35k+

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#1510106 - 06/24/09 02:59 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: badtlc]
TedMeyer Offline


Registered: 02/06/08
Posts: 37
Loc: AZ
If I weren't so lazy I'd dig up my old report, but IIRC, when I spoke to Redline they mentioned it was typical for lead to temporarily jump due to the cleaning effect from the oil, which tended to remove surface oxidation from bearings, etc. He said it generally stabilized a low levels after another change, but I went from Redline over to the EngineRX cycle and have only now put Redline back in.

EDIT: Here's a link to my old UOA:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Board=3&Number=1081183


Edited by TedMeyer (06/24/09 03:11 PM)
Edit Reason: peace and love
_________________________
Ted Meyer
'04 Suzuki DR-Z400E
'02 Subaru WRX, 18G Turbo, 315awhp
'01 Ducati Monster 944
'00 Aprilia RS250
'87 Ferrari 328 GTS

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#1511095 - 06/25/09 10:46 AM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: Quattro Pete]
bluesubie Offline


Registered: 08/04/03
Posts: 1857
Loc: NJ
 Originally Posted By: Quattro Pete
Why they're flagging the viscosity escapes me.

They're just used to seeing so many subie turbo uoa's where the oil has sheared to a 20 grade.

Ted, how many miles are you going to run the Redline? Push it to 6k.



-Dennis
_________________________
'04 Subaru Forester 2.5XT
Motul X-cess 5W-40 | OEM Honeywell filter

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#1511411 - 06/25/09 02:55 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: bluesubie]
TedMeyer Offline


Registered: 02/06/08
Posts: 37
Loc: AZ
Depends on time as well as mileage, but if I can do 4K miles on Redline with 10-15% of those miles going WOT on the track and have virtually no oil breakdown (as my prior UOAs indicate), I wouldn't see an issue going 6000 miles on this fill....
_________________________
Ted Meyer
'04 Suzuki DR-Z400E
'02 Subaru WRX, 18G Turbo, 315awhp
'01 Ducati Monster 944
'00 Aprilia RS250
'87 Ferrari 328 GTS

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#1769429 - 02/05/10 09:39 AM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: TedMeyer]
shpankey Offline


Registered: 12/21/09
Posts: 1577
Loc: Tulsa, Oklahoma, USA
Just curious, why not stick with the GC?
_________________________
06 VW Jetta TDI, M1 5w40 TDT
01 GMC Jimmy, 196k mi Pennzoil Ultra 5w30, Pure 1 oil filter

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#1772972 - 02/07/10 09:12 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: shpankey]
JoeFromPA Offline


Registered: 02/06/08
Posts: 686
Loc: PA
Hows that 18g feel on the low-end?

Bryan (BNR Turbos) just created some bolt-on versions of the VF40/46 series using an Evo 16g wheel, an 18g, and two variations of 20g. He fabbed them up to bolt-on to the Legacy GT/Outback 2005-2009 models.

I'm thinking the 16g will be right for my desires and it looks plenty good for 300whp, but I'm always curious about people's experiences with the next step up (i.e. 18g) :)

Joe
_________________________
01 M5 - 116k

08 5-speed Legacy GT - 92k miles. Great car.

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#1778051 - 02/11/10 01:31 PM Re: Castrol GC 0w30 4K miles, Subaru WRX, 69K miles [Re: JoeFromPA]
shpankey Offline


Registered: 12/21/09
Posts: 1577
Loc: Tulsa, Oklahoma, USA
What happened 2 oil changes ago that made you have 50 in copper? What the heck oil was that? I want to know so I can stay away from that, that was a terrible UOA for you!!
_________________________
06 VW Jetta TDI, M1 5w40 TDT
01 GMC Jimmy, 196k mi Pennzoil Ultra 5w30, Pure 1 oil filter

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