The only thing I can think of is the intake is leaking. Once again, I don't know what the first oil change did to cause it, but I guess anything can happen. It just doesn't make sense to me. I wish I could see it.
As far as the oil pressure, 60psi is great and nothing to worry about. Finally, if you check under the hood, there should be tags from the manufacturer. On them you should find the engine size. I would guess it is a V8 and not a 6 cylender.
Let me know if you have other questions.
Monday, September 27th, 2010 AT 7:19 AM