Its probaly just oil blow by oil..Meaning under high boost conditions oil will get blown through 2 places off the valve cover(V/C)..One is through the PCV valve sitting on top passenger side of the V/C. It blows oil through the PCV valve, through the line ist connected to the top of the throttle body (TB). Then gravity takes effect and pulls the oil down from the TB through your cold side pipe and eventually sits at the bottom of the pipe of the FMIC..I'm assuming you dont have a catch can(CC). Which is why oil is visible on the red line nipple. A CC will stop some of the oil, but not all......As far as the intake box. Oil just gets blown thought the line that sits on top of the drivers side of the V/C that connects to the intake box.....Whewwwwwwwwwwwww................
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