2011 Nissan Frontier Crew Cab Owner's Manual - Page 306

SPARK PLUGS WARNING Be sure the engine and ignition switch are off and that the parking brake is engaged securely. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs. LDI0461 SDI1895 QR25DE 1. 2. 3. 4. 5. Power steering fluid pump Water pump Air conditioner compressor (if so equipped) Crankshaft pulley Generator REPLACING SPARK PLUGS Platinum-tipped spark plugs A It is not necessary to replace platinum-tipped ᭺ spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance log shown in the "NISSAN Service and Maintenance Guide". Do not service platinum-tipped spark plugs by cleaning or regapping. ● Always replace spark plugs with recommended or equivalent ones. Maintenance and do-it-yourself 8-19