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    Mobil 1 0W20; Mazda 6i 4 cyl; 5000 mi (6K~11K)

    So ... here's my second UOA ... http://www.therealashu.com/auto/mazda6/UOA/uoa_2nd_2_23_04.pdf And in image form ... They (Blackstone) like it, in their little analysis blurb. Iron is apparently consistent with mileage, and reduced copper is a good thing. As is the reduction in silicon. I've...
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    Mobil 1 0W-20; Mazda 6i; 5000 miles (from 1200 through 6200)

    Here's my first-ever UOA on my new Mazda 6i (the 4-cylinder variant, 2.3l). PDF file of the UOA - 0W-20 on a new-ish M6i for 5000 miles Background: Stock oil and filter dumped at 1200 miles. Replaced with Mobil 1 0W-20 Syn, and stock (Motorcraft/Ford/Mazda) filter (nothing else available!)...
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