My car has 180,000 extremely abusive miles on it and it burns no oil at all, none of my 12 + cars over the last 20 years used any oil at all except for my Toyota P/U with the 22 RE with 208,000 miles of plowing snow and towing cars with it. It was burning a quart every 500 miles until I switched to 20w50. Now it burns a quart every 1500 miles.
I think your problem is your using the wrong oil. Synthetic oil is way over rated unless your engine has a turbo, if it is a turbo, just use a heaver weight oil. Try using what the Factory recommends (non synthetic) or a little heavier. Lastly, always change the oil every 3000 miles or less. I?m an ASE Certified Master Auto Tech with 28 years in the business and I have seen this problem before, the cause in most cases is do to the use of synthetic oil. Regular cheep oil works great.