2006 Hyundai Elantra Owner's Manual - Page 205

DO-IT-YOURSELF MAINTENANCE 6 7 CHECKING AND CHANGING THE ENGINE COOLANT G050A01A-AAT G050B01A-AAT Recommended Engine Coolant ! WARNING: Do not remove the radiator cap when the engine is hot. When the engine is hot, the engine coolant is under pressure and may erupt through the opening if the cap is removed. You could be seriously burned if you do not observe this precaution. Do not remove the radiator cap until the radiator is cool to the touch. Engine Coolant concentration Ambient Antifreeze temperature Water solution °F (°C) 65% -5 (15) 35% 60% -13 (-25) 40% 50% -31 (-35) 50% 40% -49 (-45) 60% G050B01E Use a high quality ethylene-glycol coolant in a 50/50 mix with water. The engine coolant should be compatible with aluminum engine parts. Additional corrosion inhibitors or additives should not be used. The cooling system must be maintained with the correct concentration and type of engine coolant to prevent freezing and corrosion. Never allow the concentration of antifreeze to exceed the 60% level or go below the 35% level, or damage to the cooling system may result. For proper concentration when adding or replacing the engine coolant, refer to the following table.