There's an Engine Oil section in your Owners Manual that says 5w30 is the preferred oil viscosity.
On the same page there's a section on using Synthetic Oil. It says:
On the same page there's a section on using Synthetic Oil. It says:
There are two maintenance schedules in the Owners Manual. One for Severe Conditions, and one for Normal Conditions. I would be comfortable saying you could use the Normal Schedule for oil changes if you use synthetic oil. But you should read the two sections to understand what the difference is between what Honda considers "Normal" and what they think of as "Severe", and do the rest of the maintenance items based on the schedule that matches your driving conditions. Good luck.Synthetic Oil
You may use a synthetic motor oil if
it meets the same requirements
given for conventional motor oil:
energy conserving, a service
classification of SJ, and the proper
weight as shown on the chart. When
using synthetic oil, you must follow
the oil and filter change intervals
given in the maintenance schedule.