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      11-12-2012, 06:18 PM   #41
FogCityM3
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Drives: M3 (E90)
Join Date: Feb 2012
Location: San Francisco


Posts: 1,664
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Had my oil tested from Amsoil/Oil Analyzers Inc at 16K + miles (and last oil change was at 1,200 miles) and zero issues. For those who are worried about oiled/cotton gauze filters letting in more silicate, so far so good (I have a MS intake/filter w/ RPI scoops). Will be interesting to have this tested over time. Most dealers are compliant with filling the sample jar at service intervals... apparently quite a few customers ask for it.