You can make yourself a oil to air filter, and splice it into your PCV system. All you need to do, is go to Wal-Mart, go to their Campbell and Haussfeld tools and purchase a water to air filter. Take this piece, go to home depot or Lowes, and match up a set of matching barbs to it. I purchased one barb that was two sided and cut it in half and used the two pieces for each side of the air/water filter. Then, just cut your PCV hose in two equal halves where it connects to your intake hosing, place the hoses over the barbs of the filter, and use some small hose clambs to secure everything. You will notice over time, this filter device will catch the oil that blows by in the PCV line that runs to the intake. All you have to do is dump the oil it catches before it gets full. Pretty simple. It sounds harder than what it is, but once you get into it, its not all that difficult to make. It shouldn't cost but about 20 dollars in parts.
EDIT: As for the current oil you have in your intake, I would probably just remove the intake hosing, throttle body, and upper plenum so I could clean each of them with some intake/carb cleaner spray. This will help clean up the intake. Or, you can just run some seafoam or other good intake cleaner through the intake to clean it out. As for the lucas oil stabalizer, I don't know how good it is. Some people have used it with good results, others have not. I personally think if you're not having any leaking issues or serious oil consumption issues, then oil additives are not needed. Most additives tend to be snake oil anyways. What current type of motor oil and weight of oil are you using ?
