Modshack is correct, what you see on your exhaust is from your fuel mixture. Black means that your car is running rich, normal for a stock fuel map. The oil consumption is probably due to the seals breaking in so you're getting blow by. As the motors break in the consumption should level out. If not, Nissan better start preparing new motors for everyone because 1 qt Every thousand miles indicated major issues. That being said, some blow by during break in is nothing out of the ordinary. I wouldn't panic if this takes place over the first 5 to 10k miles. However, if anyone is burning 1 qt Every thousand miles after 5 -10k, I would suggest taking it to a dealer and having it documented to be on the safe side.
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Chris 
Current: 2014 WRX Stage I + SPT / 2013 Hayabusa 202HP
Former:09 370Z 7-AT PW/Ark Type 2 exhaust/Evo R lip/TSW Nurburgring carbon
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