My '04 DL650 has 4100 miles on the odometer. For the first 3000 miles, it didn't use any oil. In the last 1000 miles (app.) I have had to add app. 1/3 quart to keep it at the full mark. I use 10w40 per the owner's manual. I'm just curious as to what kind of oil consumption everyone is experiencing, and if mine is normal?