2009 Honda Civic Owner's Manual - Page 308

Main Menu Table Of Contents Engine Coolant If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines. Continued use of any non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail. Have the cooling system flushed and refilled with Honda antifreeze/coolant as soon as possible. If the reserve tank is completely empty, you should also check the coolant level in the radiator. Removing the radiator cap while the engine is hot can cause the coolant to spray out, seriously scalding you. Always let the engine and radiator cool down before removing the radiator cap. Except Si RADIATOR CAP Maintenance 1. Make sure the engine and radiator are cool. 2. Relieve any pressure in the cooling system by turning the radiator cap counterclockwise, without pressing down. CONTINUED 305 2009 Civic Sedan