Engine Oil; Oil Recommendations - Polaris Sportsman 550 EFI Owner's Manual

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Engine Oil

Oil Recommendations

Polaris recommends the use of Polaris PS-4 PLUS Performance Syn-
thetic 2W-50 4-cycle oil or a similar oil for this engine. See the table on
page 81 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 recommendations for
ambient temperature operation. See page 133 for the part numbers 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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