Thanks you all for the input. The two previous owners on average dealer changed the oil at around 9000 miles. I purchased the car from an acquaintance so I know part of the vehicle history. My commute is less than 5000 miles a year so I will be on a 12 month oil change interval. interestingly enough, the dealer oil change i just paid for consisted of BMW 0w30, and a can of BG MOA Extended life synthetic oil fortifier.
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