Polaris Slingshot SL 2020 Owner's Manual page 111

MAINTENANCE
7. Reinstall the fill plug. Torque to specification.
TORQUE
10-14 ft-lbs (14-19 Nm)
8. Check for leaks. Dispose of used fluid properly.
COOLING SYSTEM
The engine coolant level is maintained by the pressurized surge tank. The surge
tank system consists of the surge tank, pressure cap and associated hoses.
As coolant operating temperature increases, the expanded coolant level rises in
the surge tank. As engine coolant temperature decreases, the coolant level
lowers in the surge tank.
NOTICE
Some coolant level drop on new vehicles is normal as the system is purging
itself of trapped air. Observe coolant levels and maintain as recommended by
adding coolant to the recovery bottle.
COOLANT
Always use POLARIS Extended Life Antifreeze 50/50 Premix.
To ensure that the coolant maintains its ability to protect the engine, we
recommend that the system be completely drained every five (5) years or
30,000 miles (whichever comes first) and fresh antifreeze added. See your
authorized dealer for this service.
Always check and change the coolant at the intervals outlined in the Periodic
Maintenance Chart section.
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