30000 MI or 48000 KM

Check
    Spare Tire
      Check spare tire for proper pressure and correct stowage.
    Fluid - Transfer Case
      Check transfer case fluid level.
Inspect
    Positive Crankcase Ventilation Valve
      Inspect PCV valve, replace as necessary.
    Air Filter Element
      Inspect engine air cleaner filter, replace if necessary.
Replace
    Spark Plug
    Oil Filter, Engine
    Fluid - Differential
      Change front and rear axle fluid.
    Engine Oil
Rotate
    Tires