On my M I follow pretty much what R60BBA says above, though not the details of rev more, then more, then max, nor the cool down. I try not to go over 2k revs until it’s at 75 degrees or so, which makes for a very pedestrian first 5 miles
Takes about 10 miles for my oil to get up to operating temp, or 15/20mins.As the car has barely moved for 9 weeks because of the ‘rona, and because it needed a new O2 sensor which was replaced today, I shall be going for an Italian tune up tomorrow
