2003 Nissan Pathfinder Owner's Manual - Page 298

GAS STATION INFORMATION FUEL RECOMMENDATION: VG33E engine: Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). VQ35DE engine: Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). For improved vehicle performance, NISSAN recommends the use of unleaded premium gasoline with an octane rating of at least 91 AKI number (Research octane number 96). ENGINE OIL RECOMMENDATION: ¼ API Certification Mark ¼ API grade SG/SH, Energy Conserving I & II or API grade SJ or SL, Energy Conserving. ¼ ILSAC grade GF-I, GF-II & GF-III. ¼ SAE 5W-30 viscosity oil is preferred for all ambient temperatures. See "Capacities and recommended fuel/lubricants" in the "9. Technical and consumer information" section for engine oil and oil filter recommendation. COLD TIRE PRESSURES: See the tire placard affixed to the glove box. CAUTION Using a fuel other than that specified could adversely affect the emission control devices and systems, and could also affect the warranty coverage. Under no circumstances should a leaded gasoline be used since this will damage the three way catalyst. For additional information, see "Capacities and recommended fuel/lubricants" in the "9. Technical and consumer information" section.