i had a 2002 honda rubicon 500cc .good machine ,runs well on AMSOIL 5 W30 all year round ..it takes 5 1/2 litres of oil because of the hydraulic pump ..only word of caution don't use a pressure washer to clean it ,the electronics will drop dead and at $100.00 for the sensor your better off cleaning it with soap and water by hand..pic below is me and the yellow rubicon...