Polaris Sportsman X2 850 Owner's Manual For Maintenance And Safety page 90

MAINTENANCE
Engine Oil
Oil Recommendations
POLARIS recommends the use of POLARIS PS-4 PLUS Performance
Synthetic 2W-50 4-cycle oil or a similar oil for this engine. See the table
on page 85 for fluid recommendations, capacities and plug torques.
Oil may need to be changed more frequently if POLARIS oil is not
used. Always use 2W-50 oil. Follow the manufacturer's recommenda-
tions for ambient temperature operation. See page 137 for the part num-
bers of POLARIS products.
NOTICE: Mixing brands or using a non-recommended oil may cause serious
engine damage. Always use the recommended oil. Never substitute
or mix oil brands.
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