I brought a used 06 mustang GT at 90k miles for a great deal. I did inspect the car fairly well! I now have 115k miles and I have not had one problem yet *knock on wood* but I do notice little hiccups on the car that do not affect performance but I am concerned! I'm 19 years old and This is my daily driver. I am going to install cams soon and I noticed this black stuff caked up around one bolt on the left passenger side cam cover bolt :/ I'm sure this cannot be good! Can anybody give me an idea of what I should do?
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