2011 WRX - PU 5w30SN - 7405Miles

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KHP

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Aug 1, 2011
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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 % ---------------
Antifreeze % 0.0 0.0 0.0 ? 0.0 0.0

Water % 0.0 0.0 0.0 0.0 0.0
Insolubles % ---------- 0.4 -------- 0.3 -------- 0.3 -------- 0.2 ------- 0.2 -----
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
 
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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
 
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.
 
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