I have an 07 750i with 1700 miles and after a 100 mile ride I am down close to a quart! No leaks, nothin in my airbox, and while the exhaust is a little stinky it's not smokin down the trail. That is a lot of oil to be burnin and considering it's not leakin a drop I am growing concerned. It has always gone through a little oil but I am worried. Thanks guys