Recent content by JamesMontana

  1. JamesMontana

    2010 Mazda 3 2.0, 5w20 full syn, 14910 mi

    About 1 year, yes. Thanks for the tip re 2x per year!
  2. JamesMontana

    2010 Mazda 3 2.0, 5w20 full syn, 14910 mi

    I did my first UOA with Blackstone. Interesting results! <img src="/forums/graemlins/confused.gif" alt="confused" title="confused" height="15" width="15" /> 1. It seems that 15K is a fine OCI for full-syn in my Mazda3. I used Castrol GTX Magnatec with a FRAM Ultra filter. 2. Too much...
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