Polaris 2015 ATV Sportsman ACE 570 - Manual (Page 89)

87
MAINTENANCE
Engine Oil
Oil Recommendations
POLARIS recommends the use of POLARIS PS-4 Full Synthetic 5W-
50 4-cycle oil for this engine.
WARNING! Vehicle operation with insufficient, deteriorated, or contaminated
engine oil will cause accelerated wear and may result in engine seizure,
accident, and injury. Always perform the maintenance procedures as outlined in
the Periodic Maintenance Chart.
Oil may need to be changed more frequently if POLARIS PS-4 engine
oil is not used. Follow the manufacturer's recommendations for ambient
temperature operation. See page 134 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.