Quote:
Originally Posted by mffarrell
I live near you and currently running factory 0W-30W in my 2020 M550. Now that I am out of maintenance warranty, I plan on either running Castrol or Mobil 1. I haven’t decided the viscosity yet, but leaning towards 5W-30W.
I am running a 50/50 mixture of Mobil1 5W-50W and 0W-40W in my Porsche 911 turbo, which seems like a good viscosity for our climate.
I may also consider a viscosity mixture in the BMW. I have seen the BMW oil as low as $8-10 online. I thought Castrol is the manufacturer of BMW oil?
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My BMW dealership parts manager told me that BMW oil is Castrol. I also saw where Castrol just signed a 5-year deal with Castrol.