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101
MAINTENANCE
Engine Oil
Always check and change the engine oil at the intervals outlined in the
Periodic Maintenance Table beginning on page 98. Always change the
oil filter whenever changing oil. See page 149 for the part numbers of
Polaris products.
Performance Synthetic 4-Stroke (PS-4) Oil
Polaris recommends the use of Performance Synthetic 4-Stroke oil (PS-
4 or PS-4 Plus) for this engine. PS-4 has been specially formulated for
use in Polaris 4-cycle snowmobile engines. It's a fully synthetic, high
performance, multi-viscosity oil designed to provide the ultimate in
lubrication performance and protection.
Oil may need to be changed more frequently if Polaris PS-4 oil is not
used. Follow the manufacturer's recommendations for ambient tempera-
ture operation.
CAUTION
Mixing brands or using a non-recommended oil may cause serious engine
damage. Always use the recommended oil. Never substitute or mix oil
brands.