2009 Mazda CX-9 Owner's Manual - Page 436

Maintenance and Care Owner Maintenance CAUTION Ø Radiator coolant will damage paint. Rinse it off quickly if spilled. Ø Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness. Ø Don't add only water. Always add a proper coolant mixture. Ø The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing. Ø DO NOT USE coolants Containing Alcohol, methanol, Borate or Silicate. These coolants could damage the cooling system. Ø DO NOT MIX alcohol or methanol with the coolant. This could damage the cooling system. Ø Don't use a solution that contains more than 60% antifreeze. This would reduce effectiveness. NOTE If the "FL22" mark is shown on or near the cooling system cap, use FL22 type engine coolant. If engine coolant other than FL22 type is used, the engine coolant must be replaced earlier than the specified replacement interval indicated in the scheduled maintenance (page 8-3). If the coolant reservoir is empty or new coolant is required frequently, consult an Authorized Mazda Dealer. 8-22