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Recently my 08 Civic started leaking oil, but it's very slow. I know this because I cannot see oil below the car and I've been checking it over the past 2 weeks and the oil level hasn't changed much. I had a back yard mechanic replace the valve cover gasket but didn't fix the problem. Actually maybe made it worse but not sure yet. I opened the hood today and noticed there is fresh oil puddled up where I highlighted in the attached picture. I've tried to search online to find out what this black plastic piece is but haven't figured it out.
Can someone please help?
1. What is this piece?
2. Is this a common place for oil leaks?