So last week my car suddenly started smelling like oil inside the car once I would stop. It seems to do it when the car is almost fully warmed up or whenever I dog on it. Mind you I had the PTU fluid changed a month ago, so there was a chance it would spilling out the breather. The car only has 65k miles. I took it to the dealership today and after 2 hours the tech rep came to me and showed me my VTA mod(only the front side was done). I told him I did it and it does not cause any issues other than the sound. He didn't seem to believe me. He decided that the pcv valve may be bad because of the VTA mod. Is that a thing? I don't understand how it would be the case. So I just went with it. I asked how is the oil level and he said there was hardly any oil loss.They came back and said they need to order parts and do it another day. So i looked at the list of parts he was ordering. And it included the pcv valve and a valve cover. I thought, why would they need to replace the valve cover if my VTA mod is "causing the problem". I'll just go with it since I have the Ford extended warranty, which I have yet to inform them that I have. I thought I would post the experience and maybe get some of your input before it gets the parts replaced next Monday.