O.K. I went to pick up some motor oil for my DRZ, $4 and change per quart. Then I went to grab some synthetic for my sons KTM, $18! I normally change my oil every second ride. But if I have to change the oil on the KTM every second ride a better get a second job. One of the guys at the store said that synthetic doen't break down as easy and I wouldn't have to change it as often. Does anyone know if there is any truth to that?