Let's face the truth.......KTM sells parts, lot's of parts!!! In fact I would guess that they make as much on parts as they do on new bike sales. That's what big biz is all about. This brings me to my point......Use your own good judgement when making decisions reguarding what type of oil and filters you choose. If there was a magic oil out there that promiced zero wear do you think the guy's at KTM would tell you about it?..........Exactally!...Great site, I get loads of great advice here.