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#2751611 - 09/22/12 05:04 PM Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX
BrewCityR Offline


Registered: 09/13/02
Posts: 350
Loc: Jackson, Wisconsin
First UOA on my 2002 WRX wagon acquired in April. Wanted an idea on the health of my engine.

No major modifications (just turbo-back 3" stainless Vishnu exhaust). K&N KN-1015 oil filter. Wix paper air filter. Comments welcome, thanks all!

Code:
MILES ON OIL          4,518        
MILES ON UNIT         211,535     
SAMPLE TAKEN          09/16/12
MAKE UP OIL ADDED     0

ALUMINUM              2                
CHROMIUM              2                
IRON                  9              
COPPER                5              
LEAD                  3              
TIN                   0                
MOLYBDENUM            63               
NICKEL                1              
MANGANESE             0                
SILVER                0                
TITANIUM              0                
POTASSIUM             3               
BORON                 43               
SILICON               5               
SODIUM                6              
CALCIUM               1209          
MAGNESIUM             706           
PHOSPHORUS            699            
ZINC                  746          
BARIUM                0        
     
SUS VISCOSITY @ 210 F 57.2
CST VISCOSITY @ 100 C 9.41
FLASHPOINT IN F       425
FUEL %                <0.5
ANTIFREEZE %          0.0
WATER %               0.0
INSOLUBLES %          0.4            
TBN                   3.5


COMMENTS:

AARON: Your WRX is average. Now, in most cases in life, that's not necessarily a complimentary statement, but from an oil analysis standpoint, average is a great thing! The far right column on this page shows average wear for a Subaru EJ205 turbo engine after ~4,500 miles of oil use. You ran just as long as our average oil change, and metals are right in line with averages, just as they should be. That tells us that this is a well-maintained engine with no problems developing at 211,535 miles. The TBN is good at 3.5, so leave this oil in place another 2,000 miles. Nice report!


Edited by BrewCityR (09/22/12 05:07 PM)
_________________________
2006 Infiniti M45 Sport (me) - Valvoline SynPower 5w30 - Fram FPS7317

2008 Mazda CX-9 AWD Grand Touring (wife) - Mobil1 AFE 0w20 - Motorcraft FL400S

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#2751637 - 09/22/12 05:29 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
MinusPrevious Offline


Registered: 12/21/10
Posts: 54
Loc: So.Cal
Permission granted to tune,add boost & put the spurs to it !!!
_________________________
Pro Jesus

'12 Scion XB /Castrl EdgeSyn/Fram Ultra XG
'06 Lancer EVO RS / Track Day Car/Under the influence of 85% alcohol/ Castrl EdgeSyn/Fram Ultra XG

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#2751703 - 09/22/12 06:45 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
sciphi Offline


Registered: 03/24/07
Posts: 10008
Loc: Upstate NY
Nice UOA. And that's a turbo engine with some miles on it, too.
_________________________
2013 Toyota RAV4 XLE
2012 Chevrolet Cruze Eco

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#2752558 - 09/23/12 06:39 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
gpshumway Offline


Registered: 06/18/08
Posts: 417
Loc: Minneapolis, MN
Thanks for posting this!

Wow, look at that, M1 5w30 actually stayed in grade in a turbo Subaru. Apparently the SN formulation is a bit more robust than the SM formulation. What's your driving like? Lots of highway miles? Much time spent at full throttle?

Do the Subaru community a favor and go post this on NASIOC as well.

I'll disagree with MinusPrevious, though, I wouldn't run Resource Conserving 5w30 in a tuned turbo Subaru. Go to something with an ACEA A3 rating in a tuned engine. That said, M1 5w30 SN held up quite well in this application.
_________________________
2007 Subaru WRX
2011 Honda Civic EX

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#2752695 - 09/23/12 08:32 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
BrewCityR Offline


Registered: 09/13/02
Posts: 350
Loc: Jackson, Wisconsin
I have a short trek into work each day... 3.5 miles (8 to 9 minutes) of 40 to 55 mph two lane back roads, but I do travel 20 miles to Milwaukee on a 65 mph freeway at least once a week, sometimes twice.

The car over its life is mostly highway miles, always had Mobil1 as its blood from what I was told and I rarely hit redline. I do occasionally rev to 5000, 5500, 6000 rpm on on-ramps, and usually keep the cruise control on around 72 to 75 (3000, 3100 rpm) in 65 zones.

So, yeah, quite happy with the report. I do plan to run this oil to ~6,500 miles and start using Mobil1 High Mileage 5w30 from here on out. I notice some burning oil smell near the turbo after shutdown, so likely the turbo seals from what Ive read is common, but I have not consumed or leaked any oil.... always at the top mark on the dipstick! Maybe the extra seal conditioners in M1HM can help those seals. Lastly, I really like its thicker HTHS (3.3 vs. standard M1s 3.1) and still provide cold weather start protection.
_________________________
2006 Infiniti M45 Sport (me) - Valvoline SynPower 5w30 - Fram FPS7317

2008 Mazda CX-9 AWD Grand Touring (wife) - Mobil1 AFE 0w20 - Motorcraft FL400S

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#2752910 - 09/24/12 07:27 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
bluesubie Offline


Registered: 08/04/03
Posts: 2197
Loc: NJ
The turbo seals are actually metal so the M1 HM probably won't help if oil is getting past them. You'll start seeing smoke coming from the scoop/turbo area if that's the case. Nice uoa but probably a good idea to switch to the HM, IMO.

-Dennis
_________________________
'04 Subaru Forester 2.5XT
Mobil 1 0W-40

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#2752915 - 09/24/12 07:36 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
BrewCityR Offline


Registered: 09/13/02
Posts: 350
Loc: Jackson, Wisconsin
Good info on the metal turbo seals, thank you! I haven't done research on them yet, just heard with time that they do leak.

Also, future oil changes will be with the Wix 57712 oil filter with proper 23 psi bypass.
_________________________
2006 Infiniti M45 Sport (me) - Valvoline SynPower 5w30 - Fram FPS7317

2008 Mazda CX-9 AWD Grand Touring (wife) - Mobil1 AFE 0w20 - Motorcraft FL400S

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#2753455 - 09/24/12 05:43 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
webfors Offline


Registered: 06/06/06
Posts: 4417
Loc: Great White North.. eh
Excellent report. Maybe rethink the oil filter choice. There's simply not enough media surface area for my linking on that 57712.

Purolator 14612 are a great choice (higher bypass 14-16psi), as are the Subaru OEM filters if you want the spec'd bypass psi.

however, I suspect that engine had many filters over it's years, and with 200k+ miles, it hasn't hurt anything grin
_________________________
15 Civic, AFE 0w20, FU OF
17 Dodge GC, PP 5w30, Defense OF
15 DL650, RT6 5w40, OEM OF
Small engines; RT5 10w30

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#2753754 - 09/24/12 10:31 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
SubLGT Offline


Registered: 01/31/06
Posts: 2513
Loc: Idaho
Was the turbo ever replaced?

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#2753958 - 09/25/12 07:41 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
BrewCityR Offline


Registered: 09/13/02
Posts: 350
Loc: Jackson, Wisconsin
Still factory original turbo.

webfors, I'll look into that 14612 filter, thanks.
_________________________
2006 Infiniti M45 Sport (me) - Valvoline SynPower 5w30 - Fram FPS7317

2008 Mazda CX-9 AWD Grand Touring (wife) - Mobil1 AFE 0w20 - Motorcraft FL400S

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#2753996 - 09/25/12 08:18 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
Indydriver Offline


Registered: 03/20/11
Posts: 1889
Loc: Indiana
An exhaust without CAI? Open that baby up, let 'er breathe. I highly recommend c-pe.
_________________________
2017 Mazda CX3 1000 FF
2014 Camaro 2SS/RS LS3 Vert 13,000 M1
2012 Sienna 68,000 M1
2011 Accord VCMV6 68,000 M1
2007 Tahoe 117,000 M1 HM


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#2770478 - 10/12/12 09:07 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: Indydriver]
gpshumway Offline


Registered: 06/18/08
Posts: 417
Loc: Minneapolis, MN
The factory airbox is a CAI, and according to testing by either Crawford or Vishnu (I forgot which) it's good to at least 400hp.

Turbo Subies hate aftermarket CAIs, most of them are actually HAIs and cause the ECU to constantly throw codes. Subaru has basically stated that their own "SPT" branded CAI just makes more noise (not power) than the factory airbox.
_________________________
2007 Subaru WRX
2011 Honda Civic EX

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#2770826 - 10/12/12 03:33 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
SubLGT Offline


Registered: 01/31/06
Posts: 2513
Loc: Idaho
[quote=BrewCityR]Still factory original turbo......../quote]

Wow! Over 200K on the OE turbo.

No head gasket coolant leaks?

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#2770837 - 10/12/12 03:40 PM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: BrewCityR]
buster Offline


Registered: 11/16/02
Posts: 30302
Loc: NJ
Originally Posted By: BrewCityR
I have a short trek into work each day... 3.5 miles (8 to 9 minutes) of 40 to 55 mph two lane back roads, but I do travel 20 miles to Milwaukee on a 65 mph freeway at least once a week, sometimes twice.

The car over its life is mostly highway miles, always had Mobil1 as its blood from what I was told and I rarely hit redline. I do occasionally rev to 5000, 5500, 6000 rpm on on-ramps, and usually keep the cruise control on around 72 to 75 (3000, 3100 rpm) in 65 zones.

So, yeah, quite happy with the report. I do plan to run this oil to ~6,500 miles and start using Mobil1 High Mileage 5w30 from here on out. I notice some burning oil smell near the turbo after shutdown, so likely the turbo seals from what Ive read is common, but I have not consumed or leaked any oil.... always at the top mark on the dipstick! Maybe the extra seal conditioners in M1HM can help those seals. Lastly, I really like its thicker HTHS (3.3 vs. standard M1s 3.1) and still provide cold weather start protection.


Good choice on the Mobil 1 HM. The added seal conditioners may help and the chemistry is the same as regular M1 so the performance should remain the same.
_________________________


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#2771424 - 10/13/12 10:31 AM Re: Mobil1 5w30, 4518 miles, 2002 Subaru Impreza WRX [Re: gpshumway]
Indydriver Offline


Registered: 03/20/11
Posts: 1889
Loc: Indiana
Originally Posted By: gpshumway
The factory airbox is a CAI, and according to testing by either Crawford or Vishnu (I forgot which) it's good to at least 400hp.

Turbo Subies hate aftermarket CAIs, most of them are actually HAIs and cause the ECU to constantly throw codes. Subaru has basically stated that their own "SPT" branded CAI just makes more noise (not power) than the factory airbox.

I don't disagree and that's why I specifically recommend cp-e which is on my MS3. The air intake is actually outside the engine bay and they pay a lot of attention to the engineering of the MAF area. I've had mine on for 25,000 miles without a blip.
_________________________
2017 Mazda CX3 1000 FF
2014 Camaro 2SS/RS LS3 Vert 13,000 M1
2012 Sienna 68,000 M1
2011 Accord VCMV6 68,000 M1
2007 Tahoe 117,000 M1 HM


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