Sled is bone stock. Cleaned air filter day before last ride, unloaded and rode up into alpine with no smoking or issues. Stopped for a few minutes to gather before a climb into the zone we were going into. On the climb the sled was smoking really bad and running poorly. Open the air box and the filter is soaked in oil. The charge tubes have oil in them also. I have rolled the sled over numerous times this season and it has never been a problem. Seems to handle boost up to a certain point and then starts smoking up towards full throttle. Oil level is good. ROV seems to be sealing when blowing through it. What else can I look for before taking it in to dealer?