I have a 2001 3.8L SC and it has gone through a quart every 1000-15000 miles for the past 5+ years. No signs of oil leaking, no signs of oil burning, and no running issues. I just add a quart when it needs it.
On a side not, I recentley switched to Shell Rotella (the cheap stuff sold at AutoZone) and my oil consuption stopped. I only have one oil change with the Rotella, and it is likely a fluke, but none the less worth mentioning.