Best oil for a 96 gsx

[96GSXboy]

Im sorry if this isn't the right place for this thread. I bought my first ski last year and haven't changed or added any oil to it. How offten should the oil be changed? Whats the best oil to use for a 96 gsx? Is there an oil filter like a car? Im good with cars but never worked on a ski.

Thanks, Justin.

 

[Mirage]

It's a 2 cycle engine, so it has no oil filter... I'd use SeaDoo's 2 cycle oil, but you can also try Amsoil, or Klotz...