Noticed that my self-set service service interval was up (5000km), so I called my mechanic and had my oil and oil filter changed today. just the usual, Genuine Honda filter with the recommended 5W20 weight oil. Because the Fit engine uses a timing chain instead of a belt, fresh oil is important to prevent build-up on the guides, sprockets, and lessen wear on the chain itself. Keep it clean and the chain should last the life of the engine.
I actually remembered to reset the service reminder this time. It said I was at 40% oil life, same as last time.