No smoke. Which was comforting being it so that it was heavily overfilled for a considerable mileage. The dipstick if you zoom well enough you can see a faint brown/grey like just be the H. It only leaves that residue after sitting overnight or extended hours. Ive had this car since 800miles and do my oil changes. This was never visible.
As for comparison never seen that not even in my 09STI that had cracked ringlands
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