These motors dont really burn oil, leak oil yes. I think you have a bad valve cover oil leak. I currently have one and was loosing as much oil as you and was like I know im not burning that much oil as it would be a smoke show out the tail pipes. Turns out the driver side valve cover was leaking badly from the front where the power steering pump is and running down and under the oil pan. I didnt have any leaks because it was sticking to the bottom of the oil pan and when moving would get blowed through the underside of the car.

If I were you, I'd do a through check under the car torwards the front and side of the engine.