V8 Engine Tech (L76/LS3)
I've got an '08 GT with 125,000 miles on it, still has all DOD intact. I was well aware before I bought the car (with 123,000mi) that they were notorious for using oil due to the DOD. My wife's '07 Tahoe is the same way.
My question is, how much usage is considered "normal"? My...