Maintenance, Cooling system – Polaris Sportsman 9921828 User Manual
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MAINTENANCE
Cooling System
The engine coolant level is controlled, or maintained, by the recovery 
system. The recovery system components are the recovery bottle, the 
radiator filler neck, the radiator pressure cap and the connecting hose.
As coolant operating temperature increases, the expanding (heated) 
excess coolant is forced out of the engine, past the pressure cap, and into 
the recovery bottle. As engine coolant temperature decreases the con-
tracting (cooled) coolant is drawn back up from the bottle, past the pres-
sure cap, and into the radiator.
Some coolant level drop on new vehicles is normal as the system is 
purging itself of trapped air. Check the coolant level and maintain as 
recommended by adding coolant to the recovery bottle.
Polaris recommends the use of Polaris Premium 60/40 anti-freeze/cool-
ant or a 50/50 mixture of high quality aluminum compatible anti-freeze/
coolant and distilled water. Polaris Premium 60/40 is already premixed 
and ready to use. Do not dilute with water. See page 123 for the part 
numbers of Polaris products.
Always follow the manufacturer's mixing recommendations for the 
freeze protection required in your area.
Recovery Bottle Coolant
The recovery bottle is located on 
the left side of the vehicle.
1. Remove the left side panel.
See page 87.
2. Maintain the coolant level
between the minimum and 
maximum marks on the bot-
tle (when the fluid is cool).
3. Add coolant as needed.