Originally Posted by m6pwr
Why would you use an oci formulated for a Toyota or an Audi for a BMW? Different oils, different engines, sump capacity, etc. Toyota says use 5w20 oil. Are you using that as the "right oil" for your BMW? Audi and Toyota are Simon Pure while BMW are capitalist swines? Why not use the mfr oci recommended by Cummins (hey, hey, usa, usa) for their heavy duty diesels: 35,000 mi?
Say no more. It's obvious who the expert here is. I was convinced from your first post. Unless the next guy who comes in here is a chemical egineer specializing in lubrications, your word is gold.