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#2973531 - 04/15/13 03:29 PM 2011 WRX - PU 5w30SN - 7405Miles
KHP Offline


Registered: 08/01/11
Posts: 167
Loc: Reno, NV
I would like to share my latest UOA. 7,405 mile interval and 8 month service. The only thing that starting to concern me is the insoluble percentage trending up. Oil filter used is OE Subaru blue can. I guess I'll keep an eye on it on my upcoming interval cycle.

I'm currently running Purolator PureONE oil filter so we'll see if that makes a difference.

Code:
Miles on Oil -------- 7,405 ------ 7,480 ------ 7,538 ------ 3,744 ----- 2,718
Miles on Unit        29,925       22,520       15,040        7,502       3,758
Sample Date        04/05/13     08/12/12     02/04/12     07/23/11    03/12/11       Unit   Universal
Make Up Oil added ---- 0Qts ------- 0Qts ---- 0.75Qts ------- 0Qts ------ 0Qts   Averages    Averages

Aluminum ---------------- 5 ---------- 4 ---------- 5 ---------- 4 --------- 5 -------- 5 --------- 4
Chromium                  1            1            1            1           0          1           1
Iron                     13           12           16           17          13         14           9
Copper ------------------ 4 ---------- 6 ---------- 8 ---------- 8 --------- 7 -------- 7 --------- 8
Lead                      0            0            0            0           0          0           4
Tin                       0            0            0            0           5          1           1
Molybdenum ------------- 55 --------- 52 --------- 64 -------- 109 ------- 247 ------ 105 -------- 74
Nickel                    1            1            1            0           0          1           0
Manganese                 1            3            0            0           1          1           1
Silver ------------------ 0 ---------- 0 ---------- 0 ---------- 0 --------- 0 -------- 0 --------- 0
Titanium                  2            2            2            3           0          2           0
Potassium                 4            3            5            2           0          3           2
Boron ------------------ 47 --------- 51 --------- 34 --------- 62 -------- 21 ------- 43 -------- 48
Silicon                   6            6            8           10          18         10          11
Sodium                    5            6           31           38           2         16          27
Calcium -------------- 2549 ------- 2175 ------- 1155 ------- 2678 ------ 2186 ----- 2149 ------ 2083
Magnesium                36          101          639           19          11        161         305
Phosphorus              758          624          660          789         706        707         783
Zinc ------------------ 927 -------- 752 -------- 786 -------- 936 ------- 741 ------ 828 ------- 932
Barium                    0            0            0            0           0          0           0

                                                                                   Values
                                                                               Should Be*

SUS Viscosity @ 210F - 59.3 ------- 57.9 ------- 55.2 ------- 56.4 ------ 53.9  55.8-65.2
cSt Viscosity @ 100C  10.02         9.62         8.83         9.19        8.46   9.3-12.5
Flashpoint in F         405          400          405          385         400       >365
Fuel % --------------- <0.5 ------- <0.5 ------- <0.5 ------- <0.5 ------ <0.5 ----- <2.0
Antifreeze %            0.0          0.0          0.0            ?         0.0        0.0
Water %                 0.0          0.0          0.0          0.0         0.0       <0.1
Insolubles % ---------- 0.4 -------- 0.3 -------- 0.3 -------- 0.2 ------- 0.2 ----- <0.6
TBN                     2.6          2.4          3.6                                >1.0
TAN                     3.0          5.0          5.0
ISO Code ------------ PU5W30SN --- PU5W30SN -- M1EP5W30SN - M1EP5W30SM - MbilCln5K5w30SM

                           * THIS COLUMN APPLIES ONLY TO THE CURRENT SAMPLE


Edited by KHP (04/15/13 03:37 PM)
_________________________
2011 Impreza WRX Limited (40k Mi): OCI = 7.5K Mi - Pennzoil Ultra 5w/10w30 - OEM blue oil filter/P1 PL14612

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#2973622 - 04/15/13 04:58 PM Re: 2011 WRX - PU 5w30SN - 7405Miles [Re: KHP]
bluesubie Offline


Registered: 08/04/03
Posts: 1821
Loc: NJ
You're probably right at the limit of the OEM oil filter (or any non extended oci filter) with your oci. OEM air filter?

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

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#2973642 - 04/15/13 05:17 PM Re: 2011 WRX - PU 5w30SN - 7405Miles [Re: KHP]
chubbs1 Offline


Registered: 06/09/10
Posts: 4574
Loc: Merritt Island FL, USA
Thanks for the UOA! Looks like the PU held up well. So did the M1EP. I think you just have a good engine.
_________________________
'12 Charger SXT
QSUD 5w30 OEM filter

'12 Charger SXT
Edge FST EP 5w30 OEM (Mine;)

'11 Hyundai Sonata GLS
QSUD 5w20 OEM Filter


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#2973654 - 04/15/13 05:31 PM Re: 2011 WRX - PU 5w30SN - 7405Miles [Re: KHP]
The_Captain Offline


Registered: 08/06/12
Posts: 120
Loc: Upstate S.C.
Nice report. Thanks for posting
_________________________
2012 Jeep Grand Cherokee 3.6 V6 4WD Pennzoil Ultra 5W-30 and OEM filter.

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#2973661 - 04/15/13 05:36 PM Re: 2011 WRX - PU 5w30SN - 7405Miles [Re: bluesubie]
KHP Offline


Registered: 08/01/11
Posts: 167
Loc: Reno, NV
Originally Posted By: bluesubie
You're probably right at the limit of the OEM oil filter (or any non extended oci filter) with your oci. OEM air filter?

-Dennis


Yeah I'm using OE Subaru air filter. Last air filter was switched out at ~25,000 miles.

I initially had an OE oil filter installed for my current cycle. Then someone here pointed out that Subaru/Fram recalled the OE oil filter that I installed. The OE oil filter was immediately replaced by PureOne filter the day after the oil change.

The filter change was by coincidence. This maybe a good thing as now I can see if a "higher quality" filter will make a difference on my insoluble numbers.


Edited by KHP (04/15/13 05:41 PM)
_________________________
2011 Impreza WRX Limited (40k Mi): OCI = 7.5K Mi - Pennzoil Ultra 5w/10w30 - OEM blue oil filter/P1 PL14612

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