That's a lemon engine. Any well built vehicle engine will never consumed that amount of oil. Even more, engines with very small built tolerances like Honda/Acura and other modern engines.
Funny, that is the same BS consumption that Mercedes stated when they had tens of thousands of damaged engines, if not more than 100,000 damaged engines, ruined by sludge in the engine. The Mercedes engine was designed/supposed to use a long term FSS mainatence cycle (~10K miles) and use synthetic oil and the dealers were putting dino oil and the engines sludged up and began to fail like flies, well before the 50,000 miles. Then Mercedes began to use synthetic but most the engines where damage already.
Mercedes was telling the tens of thousands of owners the same BS.. that they will not change the engine, or consider it a problem, until it burnt more than 1 quart per 1000 miles. Lots of people dump the SUVs, and when the lawsuits came, it was too late for many of the owners who sold their cars for around 1/5 of the value, or less, after only 4 years..
Try to get rid of the vehicle, get a second opinion from an expert, go to the TV station and tell them the story, and/or place a lawsuit. If it burns that amount of oil now, then just imagine how it will be later.
For the Mercedes with damaged engines, they began to use synthetic oil 0W-40 to 0W-50, which helped with the consumption on very damaged engines. I personally used the synthetic 0W-40 on my ML since my consumption became pretty bad, too. I remember when I flushed my engine twice in a row(the first time) and all the thick sludge came out out. Even the oil cap was full of heavy sludge. At the long run the sludge caused a lot of other problems too..
You may want to try changing to synthetic oil and you need to make sure your crank case breather pipe valve is not obstructed or it will cause large oil consumption, too. With a sludged Mercedes engines, it causes the crank case breather pipe/valve to completely sludge which compounds the issue.
AC