Originally Posted by MRSSIIM3
So I finally want to put this "soft break in" vs "hard break in" argument to rest. I took delivery of my 2013 e92 m3 last wednesday and am getting my break in service done tomorrow. I am going to have them save some oil for me so that I can send it into blackstone labs for testing. Then, we can see what is actually in this break-in oil of ours.
Sweet, what do you expect to find?