KTM 950 SUPERMOTO R - Manual (Page 60)

A mixture of 50% antifreeze and 50% distilled water is used as the cooling liquid. How-
ever, the anti-freeze protection must be at least -25° C (-13° F). Aside from antifreezing pro-
tection, this mixture also provides great corrosion protection which is why it must not be
replaced by pure water.
– For the cooling system, use only high-grade antifreezer (Motorex Anti-Freeze). Using low-
ergrade antifreeze agents, can cause corrosion and coolant foaming.
– More antifreeze must be added if you plan to travel to a region where temperatures are
expected to drop below -25°C (-13°F).
Pressure induced by heating of the cooling liquid in the cooling system is controlled by a
valve in the radiator cap [4]; a water temperature rising up to 125° C (257° F) is admissi-
ble, without fear of problems.
Any excess cooling liquid caused by thermal expansion is conducted to the compensating
tank [5]. It will be sucked back in as soon as the temperature in the cooling system drops.
MAINTENANCE WORK ON CHASSIS AND ENGINE
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950 Supermoto R