2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 174Get this manual
Section 03 ENGINES (2-STROKE) Subsection 08 (LIQUID COOLING SYSTEM)
COOLING SYSTEM REFILLING PROCEDURE
CAUTION: To prevent rust formation or freezing condition, always replenish the system with the Bombardier premixed coolant or with 50 antifreeze and 50 waterPure antifreeze without water freezes (like slush ice)Always use ethylene glycol antifreeze containing corrosion inhibitors specifically recommended for aluminum engines
System Capacity
Refer to TECHNICAL DATA