oil consumption

My 2014 Acadia is using up to 3 qts of oil between oil changes. I have read that the vehicle is known for using oil, but this seems excessive. It began at approx 55k miles, now has 77k. I was using a synthetic and changed back as I was told this could help. It does not. Any knowledge to assist...

I have done quite a bit of research on the 5.3 AFM engine using oil but have not seen any as recent as mine. Since purchased the 2012 GMC Sierra 1500 Crew Cab Z71 4WD SLE with the 5.3L V8 Aluminum Block with AFM (RPO LC9) has eaten oil. It had 368 miles on it at purchase. At 2158 miles I...