Quote:
Originally Posted by joeveto
I know this is an older thread, but I'm glad I found it. I just bought a 335, and I just changed the oil, using Mobil 1 0-40 European blend. I had to make a couple trips just to find the oil, and the whole time, I kept looking at my old standby -- Rotella.
I use Rotella in my bikes and all my other cars. I think it's a very solid oil. That being said, with the nature of the 335, and the turbos, I'm concerned. So I went the conservative route, and used the BMW approved oil.
I'm curious if anyone's run a Blackstone on Rotella, post 335 yet...
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M1 0w40 is a fantastic choice. T6 is well liked by many marque owners unfortunately those who use it with a significantly shortened OCI really can't attest to its performance. This is because the real indicator of how well an oil performs is largely based on time/miles. That's what you're paying for when you buy an expensive synthetic. You're paying for a 10-15k mile OCI instead of a 5k mile OCI.
Filtration plays role as well. Oil filters get better at filtering the longer they're in service.