Been using Rotella for 5 years on my TBA and 3 years on my Yami RSV
without any problems . I believe as long as you change your oil regularly its all good no matter what brand of oil you use . One thing tho ,we all know we are being gouged at the pumps for gas/ petrol ,so why are the oil manufacturers seemingly trust worthy with their claims of superior products . $20 for 4 ltrs rotella ,which is motorbike rated or 14 ish for 1 ltr of the other types . Seems like just another scam to me