Yea it was the service writer at my dealership who told me this, there's quite a few gmt-900s in my family and they all burn oil though. Things like this will make me jump ship next time and at least give the competition a shot
My 09 w/47k is at the dealer now getting the oil changed, they said it was 1.5 quarts low, I change it every 5k. They said chevy claims 1 quart every 2k miles is normal... my 94 isn't even that bad... pretty pathetic imo