Get a PCV valve from the dealer. Its like 6 or 8 bucks. Aftermarket units tend to have too high of a flow rate, so you suck oil into the intake, and burn it. (but, you won't necessarily see blue smoke while driving.)

White smoke is burning coolant. Take a cautious whiff of it next time you start it, and are sure it's gonna produce. If it burns your eyes/sinuses, you have a headgasket leak. (yes, just plain ol' exhaust will burn your eyes and such, but, with coolant in it as well, it will be BAD. So, don't stick your face in it, just wave some of the stream up to your nose.)

 

Like I said, I have the pcv valve from the dealer. And it is definitely blue smoke, I didn't think so at first but my mechanic agreed that is was burning oil. And I've never lost any coolant, so it wouldn't be that either.

 

Valve seals?

Also, tighten up that PCV hose. Its possible that part of the problem is oil dripping from there onto the headers (which wouldn't leave oil spots on the ground). Band clamp should do the trick.

 

If that much oil is dripping on the headers it should smell pretty strong.

 

Plus it wouldn't be blue smoke out of the tail pipe. Exhaust valve seals would be my first guess it the plenum isn't leaking.

 

Do yourself a favor, pick up a compression tester from your local parts store and perform a comp test. This will let you know where you stand better then any guess work could.

 

Compression test won't tell you squat about oil control rings. If you have low compression, sure, the test might be meaningful, but, if the numbers are ok, you STILL don't know if the oil control rings are doing their job effectively or not.

 

I was just throwing it out there as a contributing factor; It's possible that several small problems could add up to become one large one.