1993 Honda Civic Owner's Manual - Page 128

Spark Plugs, Battery Spark Plugs Specifications: DX Normal driving conditions NGK: ZFR5F-11 Nippondenso: KJ16CR-L11 Hot climates, or continuous high speed driving NGK: ZFR6F-11 Nippondenso: KJ2OCR-L11 U.S.: EX, EX with option package Canada: Si Normal driving conditions NGK: ZFR5J-11 Nippondenso: KJ16CR-L11 Hot climates, or continuous high speed driving NGK: ZFR6J-11 Nippondenso: KJ20CR-L11 Battery Check the condition of your car's battery monthly. You should check for proper electrolyte level and corrosion on the terminals. The battery contains sulfuric acid (electrolyte) which Is highly corrosive and poisonous. Getting electrolyte in your eyes or on your skin can cause serious burns. Wear protective clothing and eye protection when working near the battery. Swallowing electrolyte can cause fatal poisoning if immediate action is not taken. KEEP OUT OF THE REACH OF CHILDREN. The battery gives off explosive hydrogen gas during normal operation. A spark or open flame can cause the battery to explode with enough force to kill or seriously hurt you. Wear protective clothing and a face shield, or have a skilled mechanic do the battery maintenance. Maintenance