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  1. W

    2016 WRX, 6k intervals, 60k worth of intervals: M1 ESP 5w30, RT6 MV 5w30

    I haven't gotten around to posting these individually, but here are 60,000 miles worth of UOAs on my 2016 WRX. Here are some key points: -A couple of the samples were sent to both Blackstone (BSL) and Oil Analyzers Inc (OAI) for analysis. -Subaru OEM oil filter on each interval -Ran the factory...
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    '13 WRX Mobil 1 ESP 5w30, 6,296 mi

    This is my third interval on M1 ESP 5w30, using the OEM Subaru blue filter. Mainly easy street driving, with a few autocross events. Car is still all stock engine-wise. Topped up twice (I like to keep the oil level at full), using about 0.5 qt Castrol Professional Edge OE 5w30 at one point and...
  3. W

    '13 WRX: Mobil 1 ESP 5w30, 6,590 mi

    Second interval on Mobil 1 ESP 5w30, pretty happy with how it's doing. I was planning on running it to about 6,000 miles (see previous UOA on 4/21/14), but a road trip put me over a bit. Easy street driving, 1,000 mile road trip and autocross events on this oil. OEM Subaru blue oil filter. The...
  4. W

    '13 WRX: Mobil 1 ESP 7,216 mi

    After taking a mid-interval sample, I changed the oil at about 7,200 mi. Subaru OEM blue filter as always. At around 4,900 mi when I took the last sample I added about a quart of oil. Mostly easy driving with a few autocross events on the interval. All the winter driving on this interval too...
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    '13 WRX: Mobil 1 ESP 5w30, 4,889 mi Sample

    I took a mid-interval sample to see how the TBN is holding up, and I'd like to run it to the factory-recommended 7,500 mi OCI; Subaru OEM blue filter, as usual. Easy driving for the most part and lots of winter idling, a few autocross events during this interval. Code...
  6. W

    2013 WRX, Pennzoil Ultra 5w30, 4,547 mi

    Here is my Pennzoil Ultra UOA. PU 5w30 with an OEM Subaru filter. Easy on the car while daily driving, roughly 70% highway and 30% city driving. Four autocross events on the oil (~25 runs). At ~3,500 mi I realized that I had burned some oil and topped off with about 0.6 qts. When I changed the...
  7. W

    '13 WRX: Pennzoil Platinum 5w30, 3,351mi Interval

    Here is my second thread and 3rd UOA, this time on Pennzoil Platinum. I wanted Pennzoil Ultra for this fill, but did not find it easily. In haste, I used Platinum. PU is currently in the car and will be the fill after. I am generally pretty easy on the car, usually 3k RPM shifts or under and...
  8. W

    '13 WRX: FF 5w30 3,002 mi / Edge OE 5w30 4,048 mi

    Hi, I've been lurking for a while and finally have some UOAs to post. First was the factory fill. Then, I started with Castrol Edge OE Professional 5w30 for its shear stability. Paired it with an OEM Subaru filter. 50-75% of a can of Lubro-Moly MOS2 was added to keep moly levels up for break in...
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