I have a 300i downtown 2011 ,. on my break in ,I have a hill with 10 % grade, 2 miles from the house, my break in was, ride to hill , wot. up the hill,. go nice and easy to turn around and hit the top of hill at high speed and close throttle down the hill, I did that for 25 miles, then went home to change the oil, after that I rode for the next 200 miles fast and slow ,and change the oil again,. every oil change to 600 miles I got less and less specks in the oil,. and allways change oil HOT,. befor any thing settles and not come out, wear your gloves the oil is hot ,. 60,000 km. now and my scooter runs better every year,. I have dr. pulley 15 gram sliders and a modded by me., variator,. 82 year old and still riding, de dee