What oil are you guys running? So far I have been using the PS Plus 0w50 that the manual calls for but I can't imagine you cannot use any other oil. I would prefer to use a full synthetic commonly available anywhere instead of the really expensive Polaris oil. Sorry if this has been covered but you cannot do a search with the word "oil" cause its only three letters. I don't want to take any chances with the KTM powerplant it seems kind of finicky with everything else so I want to be sure that another oil is acceptable.
Plus 0w 50 is not a weight oil I have seen anywhere else but powersports.