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2002 996 Exhaust smoke on startup - port side

Engine

Vehicle Information: Model: C4S; Year: 2002; Body Type: Coupe; Total Mileage: 55,000;

Relatively new to this so hope I'm not pestering you with a question that's been asked many times before. I did a bit of research on the Q&A site but didn't quite find the answer to my particular issue.I recently purchased this vehicle as described about 1,500 miles ago. The pre-sale inspection on this previous daily driver revealed a few issues such as RMS leak, oil cooler leak and a few other more minor things. The seller and I came to terms and a local and very reputable Porsche dealer in the area performed all work and a 60K insopection, and all issues were rectified.On a local road trip about 300 miles ago it indicated low oil. I added a pint of synthetic and all was ok. The last couple weeks upon startup, the left exhaust has what would seems to be excessive and`very noticeable smoke, but not particularly blue, more dark grey. The car runs fine otherwise at all rpms and no other smoke seems prevalent after that.I only drive the car about once or twice a week, varying distances, usually no more than 10 to 50 miles, some city some highway.So the question - The smoke seems to be getting worse. Does it sound like a mixture issue or valve/ring issues starting to surface?Much appreciated,Jim H

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