roegs

My '09 has around 31k miles on it and was burning a quart in around 1600 miles. First time I brought it in, they replaced the driver side valve cover. No change in oil comsumption. Next time they dropped the pan, installed the deflector, and de-carbonized the driver side pistons and rings. Still no change. The last time I brought it in, I was expecting that they would replace pistons and rings, but apparently GM wanted them to try one more drivers valve cover. I'm watching now to see if there will be any change. My dealer has been great to work with, but I gotta say its getting a little old bringing the truck in for this problem...