In Reply to: Cold start question... posted by Brad L on September 26, 1999 at 19:22:12:
: Why is it that BMW recommends that, after starting a cold engine, one should drive immediately and not let the car sit at an idle? Is this an oil circulation issue or what? And is it really a no-no like BMW says?
I read this in an auto magazine a year or two ago. The idea behind it is that if you drive the car immediatly after start up that the engine warms to operating temp more quickly with less fuel contamination of the oil etc. because the rings are sealing sooner. And obviously you are supposed to drive conservativly until it does reach operating temp.