1998 Nissan Frontier Owner's Manual - Page 183

Schedule One Abbreviations: R = Replace MAINTENANCE OPERATION I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only MAINTENANCE INTERVAL Miles × 1,000 3.75 7.5 11.25 15 18.75 22.526.25 30 33.75 37.541.25 45 48.75 52.556.25 60 Perform at number of miles, kilometers or (km × 1,000) (6) (12) (18) (24) (30) (36) (42) (48) (54) (60) (66) (72) (78) (84) (90) (96) months, whichever comes first. Months 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Emission control system maintenance Drive belts I* I* Air cleaner filter See NOTE (1) [R] [R] Positive crankcase ventilation (PCV) filter See NOTE (2) [R] [R] I* I* EVAP vapor lines Fuel lines I* I* See NOTE Fuel filter (2)* Engine coolant See NOTE (3) R* Engine oil R R R R R R R R R R R R R R R R Engine oil filter R R R R R R R R R R R R R R R R [R] [R] Spark plugs NOTE: (1) If operating mainly in dusty conditions, more frequent maintenance may be required. (2) If vehicle is operated under extremely adverse weather conditions or in areas where ambient temperatures are either extremely low or extremely high, the filters might become clogged. In such an event, replace them immediately. (3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months. * Maintenance items and intervals with an are recommended by NISSAN for reliable vehicle operation. The owner need not perform such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are required. 9-6 Maintenance