2007 Nissan Altima Owner's Manual - Page 277

SPARK PLUGS 1. Visually inspect the belt(s) for signs of unusual wear, cuts, fraying or looseness. If the belt is in poor condition or is loose, have it replaced or adjusted by a NISSAN dealer. 2. Have the belts checked regularly for condition and tension in accordance with the maintenance schedule found in the "NISSAN Service and Maintenance Guide". LDI0564 SDI1895 VQ35DE engine 1. 2. 3. 4. Power steering fluid pump Generator Air conditioner Crank pulley REPLACING SPARK PLUGS Platinum-tipped spark plugs (if so equipped) It is not necessary to replace platinum-tipped A 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 8-17