All of a sudden my baby is running rough. I was driving home lastnight when I noticed it smoking under the hood. It smelled like oil. Then it started running rough. I was only a mile from home so I got home and popped the hood to find my oil cap gone and oil splattered all over the hood and engine. Today it is still running rough. Almost like it's on 7 cylinders. I am going to the parts store to get another cap and I figured I would get a PCV valve while I am there because i thought perhaps it was in need of replacing. My question to you is what might my problem be? It seemed to be an awful lot of oil for just a mile run. Any help would be appreciated.