I have a 97 RMK 700 and was wondering if the brand of 2cycle matters. I have been using middle of the line stuff like lucas oil 2stroke or occassionally polaris brand. I have heard blue marble is really good as is polaris gold synthetic and am wondering if there is much of a difference than with the mid grade stuff. I wouldn't put wally world in it because everything they make/sell is pretty worthless imo. What do you guys think?