My K1100Lt goes through almost half a quart in 1500 miles, my R1150R will use a half quart in 2000 miles. If you look in the Owners Manual you are for warned. There is a lot of discussion on other sites on the topic, it's all about the same. I think BMWs attitude is that oil is cheaper that close tolerances. Beside it keeps the oil fresh. The only time my blow blue is when I have left on the side stand over night or longer, it takes about 10 minutes for it to clear. Just top it off and ride the hell out of it, it likes it, the harder you run it the better it runs.