2004-2005 660 Yamaha Rhino Factory Service Manual, Page 110Get this manual
CHANGING THE FINAL GEAR OIL CHECKING THE DIFFERENTIAL GEAR OIL
CHANGING THE FINAL GEAR OIL 1Place the vehicle on level surface2Place container under the final gear case to collect the used oil3Remove: oil filler plug drain plug 4Drain: final gear oil 5Install: drain plug 20 Nm (2.0 kg, 14 ft lb) NOTE: Check the drain plug gasketIf it is damaged, replace it with new one6Fill: final gear case Periodic oil change 0.25 (0.22 Imp qt, 0.26 US qt) Total amount 0.28 (0.25 Imp qt, 0.30 US qt) Recommended oil SAE 80 API "GL-4" Hypoid gear oil CAUTION: Take care not to allow foreign material to enter the final gear case7Install: oil filler plugCHECKING THE DIFFERENTIAL GEAR OIL 1Place the vehicle on level surface2Remove: oil filler plug 1