Rotella T6 5-40 on every turbo vehicle I've owned (four bimmers and three wrx/sti's) including this one and it's been good to them to date... most in bmw land don't like this oil... i do
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2020 X3M /// MHD Tune
Prior Bimmers
2017 240XI Hybrid / FBO / MHD E40
2015 235XI FBO / MHD E30
2009 335XI FBO / COBB / E30
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