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      04-22-2012, 05:34 PM   #7
F32Fleet
BMWCCA since '03
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Drives: 2015 435i
Join Date: May 2005
Location: Atlanta (Vinings)

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Define "best". As in best in...(fill in blank).

I would look at a diesel oil with the most OEM approvals. That would be M1 ESP 5w-30.