94
MAINTENANCE
Engine Oil
Always check and change the engine oil at the intervals outlined in the
Periodic Maintenance Table beginning on page 91. Always change the
oil filter whenever changing oil. See page 141 for the part numbers of
POLARIS products.
Oil Recommendations
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.
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.
Oil Level Check
Read the entire oil check procedure before checking the oil level.
The oil level will rise as engine temperature increases. The oil level will
be lower when the engine is cold. To obtain a proper oil level reading,
the snowmobile must be on a level surface, and the engine coolant tem-
perature must be between 145° and 160° F. (63°-71° C).
Always check the oil level before operating a snowmobile that has
tipped over.
NOTICE:
Severe engine damage may occur if procedures for checking the oil
level are not followed precisely. Always check the oil with the
snowmobile positioned on a level surface. Always check the oil level
when the coolant temperature is within the specified range.
