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There are almost as many theories on how to best deal with oil as there are members on this forum.
When push comes to shove, getting a UOA performed on oil from your car, multiple times as you change oil over the life of the engine so as to develop trending information, is the only way to learn what for sure works, or doesn't work, for /your/ engine, oil choice, environment (driving style and location) and time/distance between changes.
Everything else is just an opinion.
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1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla
. . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's
X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg
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