crwarren11 -
More then likely you will need valve stem seals if they've never been changed. When purchasing a used vehicle it may not be possible to know if the previous owner did or not. IMO oil heading thru the intake from the CCVs should be resolved first - especially if you've already replaced the valve cover gaskets and there's still intake oil. I used clear plastic tubes with a makeshift catch basin for a visual of what was happening.


You also need to measure crankcase vacuum to see if the crankcase is sealed (is the oil filler cap & o-rings on dipstick sealing???)

I also found excessive carbon buildup on my piston tops which caused an uneven burn (excessive condensation)

More info;
http://www.bimmerfest.com/forums/album.php?u=346089

You're also in Orange County CA & AGA is just down the road (Escondido)