Polaris Sportsman 450 Owner's Manual page 78

MAINTENANCE AND LUBRICATION
Engine Oil
Oil Change (700)
1. Place the vehicle on a level surface.
2. Run the engine for two to three minutes until warm. Stop the
engine.
3. Clean the area around the drain plug.
4. Place a drain pan beneath engine crankcase and remove the drain
plug.
CAUTION
Hot oil can cause serious burns. Do not allow hot oil to touch
skin.
5. Allow the oil to drain completely.
6. Replace the sealing washer on the drain plug.
NOTE: The sealing surfaces on drain plug and crankcase should be
clean and free of burrs, nicks or scratches.
7. Reinstall the drain plug and torque to 20 ft. lbs. (27 Nm).
8. Place shop towels beneath the oil filter. Using an oil filter wrench,
turn the filter counterclockwise to remove.
9. Using a clean dry cloth, clean the filter sealing surface on the
crankcase.
10. Lubricate the o-ring on the new filter with a film of fresh engine
oil. Check to make sure the o-ring is in good condition.
11. Install the new filter and turn by hand until the filter gasket
contacts the sealing surface, then turn and additional 1/2 turn.
12. Remove the dipstick and fill the sump with two quarts (1.9 l) of
recommended oil.
13. Place the gear selector in PARK and set the parking brake.
14. Start the engine and let it idle for one to two minutes. Stop the
engine and inspect for leaks.
15. Re-check the oil level on the dipstick and add oil as necessary to
bring the level to the upper mark on the dipstick.
16. Dispose of used filter and oil properly.
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