We have a 2015 650 convertible and a 2018 X 5 50i and both have been on Motul 8100 X-Cess 5W40 since new (now using Motul 8100 X-Cess gen2 5W40).
Both vehicles are driven about 6,000 miles yearly and oil and filter changed yearly. Neither vehicle burns any oil!
Living in South Florida, the 5-40 makes sense with its HTHS. With the miles we drive, I'm relatively sure most oils would do well.
Just a comment for the folks that may believe 5-40 would be "bad" for their vehicles....
Flintstone
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