2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 33Get this manual
MAINTENANCE
LUBRICATION
Engine Oil
Lube RecPolaris 0W40 Synthetic
Add oil to proper level
Frequency
Change after 1st month, months or 100 hours thereafter; Change more often (25-50 hours) in extremely dirty conditions, or short trip cold weather operationChange annually '
Transmission
Polaris Synthet- Add lube to FULL level on dipic Gear Case stickLubricant Polaris DOT Brake Fluid