Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.
| Every 25,000 mi | Fuel System (inspect) |
| Every 50,000 mi | Engine Air Filter Element (replace) |
| Every 100,000 mi | Spark Plug Wires (inspect) · Spark Plugs (replace) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill) |
| At 150,000 mi | Accessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill) |