'04-05 models

Warm up the engine.
Remove the maintenance lid (A).

Fig 1: Maintenance Lid And Drain Bolt W/Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the drain bolt (B), and drain the engine oil.
Reinstall the drain bolt with a new washer (C).
Refill with the recommended oil (see LUBRICANTS AND FLUIDS ).
Capacity

At Oil Change: 4.0 L (4.2 US qt)

At Oil Change including Filter: 4.2 L (4.4 US qt)

After Engine Overhaul: 5.3 L (5.6 US qt)
Run the engine for more than 3 minutes, then check for oil leakage.