Good afternoon fellow Victory owners. I'm just joining the group and look forward to interaction with all of you so that we Victory folk can better enjoy our machines and rides. I'm currently looking for information on oil useage. My local Victory folks tell me the 20W40 Semi-Synthetic oil (by Victory) is the only oil I should use. What say all of you?? If this is not true...what oil have you folks been using...I pay $10 per quart..is that good?