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oil analysis

  1. Oil Analysis at 105,000 miles

    General Discussion
    I forget which forum I usually post these in... :shrugs: Anyway, as I have been doing for every oil change, below are my oil test results for anyone interested. Oil: Amsoil Signature Series 0W-30 Filter: Amsoil EA15K10, 98.7% 15 micron filter About 6 months and 5,000 miles Some notes: My fuel...
  2. 100,000 miles; Amsoil oil analysis @ 3771 mi/5 mo and extended intervals

    General Discussion
    As usual, I run an oil analysis on a sample of my oil around every 5,000 miles. Below are the results. (Note that Sample #1 is Royal Purple, the rest are Amsoil's Signature Series) This most recent sample I didn't run it as long because I wanted to send the sample in at 100,000 miles...