Engine Oil Replacement

Warm up the engine.
Remove the drain bolt (A), and drain the engine oil.

Fig 1: Removing Engine Drain Bolt And Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reinstall the drain bolt with a new washer (B).
Refill with the recommended oil .
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.