predator,you really don't know what you're talking about. You may be factually correct, but you're trying to force an answer that just isn't correct.
Even on this grainy, camera-phone-quality video you can see a visible smoke stream trailing behind this 109G-6.
http://www.youtube.com/watch?v=2HUC7Y5XqB4&feature=relatedKeep in mind that's a warbird and will not be flown at max power (probably not even close) to extend longevity.
You may very well be right about oil being belched on startup, but you continue to ignore the facts that others (who know more and have read more on it) have provided you. That doesn't account for the smoke stain accumulation shown in photos. Nor does it account for steady dark smoke trails throughout flight, not just startup.
You have LW pilots mention it, you have allied fighters and bomber gunners mention it, you have massive photographic proof, and also video proof. Why are you trying to make up some story to the contrary?