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    engine size & analysis

    Say I have a 4 cylinder engine and send in some oil for analysis. It comes back, but upon review I realize they tested it for the 6 cylinder model. They both hold the same 5 quarts. How will this effect the results? My naive logic says that the 6 cylinder engine oil will have more elements in...
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    WRX - encouraging

    Just got my very first analysis back for my 2002 WRX. I'm pretty excited, and I really think taking the time to break the engine in properly has paid off: 2002 WRX 32,600m on car 4,888m on oil Subaru filter Mobil1 5W/30 Aluminum 3 Chromium 1 Iron 7 Copper 1 Lead 2 Tin 1 Molybdenum 71 Nickle 0...
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    too frequent?

    I have a WRX, and switched to Mobil 1 at the third change (9K miles). I use a graphite additive (Krex), and I still change every 3K miles though, since I often shift around 6K rpms, and even cruise at 3500 (mainly because 40mph is at a bad spot for 4th gear, and I have to drive that speed quite...
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