95331140: My Honda dealer already flushed my cvt oil and upgraded with the new cvt oil and checked the start clutch aswell, but still shudder. They said its not the star clutch, they found that the cvt gearbox is a defect and they just going to replace it with a new one ordered from Japan. So if flushing doesnt make a diffrence ask ur honda dealer to replace it with the new one (if under warranty), and u should get a free rental car too.