Hi,
Just pulled the valve cover off my b16 today and found everything in the head has this 'stained' look to it: (I think it may be called oil coking)
Thats not from my engine but the whole head looks like that (actually a bit worse). I pulled the dip stick out and it looks the same as well.
I recently bought the car, and the car passed a compression test with 200 - 205 in all cylinders when warm and the oil level is correct. On my previous b16 I never experienced anything like this.
I'm going to change the oil as a precaution to some 10-30 fully synthetic oil, but would really like to know what has caused this. The engine sounds fine and runs well but it is rather concerning.
Any help would be great.
Thanks
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