Polaris MSX 110 Owner's Manual For Maintenance And Safety page 83

MAINTENANCE AND LUBRICATION
Coolant Change (Closed Loop System)
Have your authorized Polaris dealer change the coolant
in the closed-loop cooling system every four years.
Coolant Level (Closed Loop System)
We recommend the use of Polaris Premium 50/50
Premix coolant for your watercraft. This coolant
premix provides freeze protection down to - -26° F
(- -32° C). The premix is 50% propylene glycol (an
environmentally friendly product) and 50% de-ionized
water. See page 101 for part numbers of Polaris
products.
NOTE: Never add tap water or lake water to the
cooling system. Minerals cause deposits and
may react adversely with the metals in the
engine and cooling system.
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CAUTION
Storing or operating your watercraft with an
improper coolant-to-water ratio can result in
serious damage to the engine. The 50%
propylene glycol and 50% de-ionized water
premixed coolant recommended by Polaris
provides freeze protection only down to --26° F
(--32° C). If your watercraft is stored or operated
in colder conditions, you must change the
propylene glycol/de-ionized water ratio to provide
adequate protection in those conditions. Always
return the coolant to the 50/50 ratio before
operating in temperatures at or above --26° F
(--32° C) as the more concentrated coolant may
cause engine damage at normal temperatures.