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Plenty of examples here on this forum of turbocharged engines with multiple 100k miles.
The key takeaway is typically use any oil that is LL01, LL04, LL04+ certified and perform your oil changes at 5-7k miles. That's way more important than the oil brand. It all sounds very scientific with racing being the driver for street engine oil choice, but at the end of the day BMW will pick the manufacturer that gives them the lowest cost and the best contract. Choose any of the A-brands and you're good. There are way too many variables in driving behavior, so it'll be next to impossible to compare two high mileage vehicles from two different owners.
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