It can also be you're valve stem seals. How many miles do you have on the car?
My Talon has the same problem. I fix it with stop leak stuff. Any real mechanic will tell you not to use this stuff, but I didn't think my Talon would last this long

Anyway, I've been using it for two years now and it has not gummed up my turbo. Then again, I don't use the recomended about too. I used it about once every 2 or 3 oil changes when my car starts to smoke really bad. Like it is now
If you plan on keeping your car for the long run, I'd try and find the real fix, not a fix in a bottle. I might just have to go in and replace my valve stem seals. I like this no car payment stuff. I'm in no hurry to buy a new car!
William