My K75 is similar to that, more if ridden hard. I went through about 2 quarts on my ride last summer. 4000 miles, much of it at high speed, high load, and high temperature. Got about 100k miles on it. I may look into replacing the rings, as I think it burns a bit too much lately. I should do a leakdown test. I will be doing the clutch soon, so I will be most of the way in anyhow.