Basically I ride a motorcycle very infrequently and tend to not ride it at all during the winter, so it sits in the garage for a long time during the year. I use stabilizer on the gasoline but I am unsure how often I should change the oil since I don't reach the 4,000 mi recommended oil change mileage before a couple years have passed. Should I just change the oil every 2 to 3 years regardless of how much little mileage I've accrued? Or can I safely extend that date to 4 or 5 years?
The engine is a Rotax model, and it uses 100% synthetic oil.