IN MY VIEW LESS THAN 100,000 K IS JUST BREAK IN PERIOD. MY 5000CDTQ AVENT JUST TURNED 450,000 KM OR ABOUT 280,00 MILES AND STILL DOES NOT BURN ANY OIL. I CHANGE THE OIL EVERY 5000 KM AND HAVE OWNED IT SINCE NEW. IT ALSO STILL LOOKS REALLY GREAT. BILL 'BTW CS IS ONLY IN THE USA IN CANADA IT IS CD.'