As the title says I have what I believe is oil in my reservoir. Just traces, floating around and sticking to the sides. I just noticed it recently when I was changing my oil. The oil I took out was dark, but not milky, also the car is not overheating, and quite frankly runs like a champ. It is a manual so no transmission cooler. I feel that it is the head gasket, and ordered the necessary parts to do the job. So what do you guys think before I do this and find out that's not the problem? Haven't ran any tests, but all I can think is that the gasket is at least starting to fail. Thoughts?

 

Pics would help

 

Pics of the fluid I'm assuming.

 

Compression test to find out of the head gasket is no longer sealing properly. If not, then it could be a pinhole leak in the block which is uncommon but happens from time to time in some Honda blocks. It's a casting error.