Newbie member so pls bare with, just picked up a 320d 2006 m47 I believe, 120,000 miles that’s been sat a year or more. On initial start up in morning takes 2 or 3 attempts to start and when It does it’s quite smoky “blueish” and sounds like it’s not firing on all cylinders,after few mins of driving it clears and runs ok till the next morning. Smoke doesn’t completely go but clears a lot. I’ve changed fuel filter and crankcase breather so far. Really great fuel for any pointers and advice.