One of the great things about this site is that you can learn a little bit about oil analysis and comfort yourself that, in fact, the manufaturer recommendation are more than reasonable, and in Honda's case quite conservative. You should spend some time in the used oil analysis section and look at what oils have been used in these cars and how they have performed. What will probably happen is that you will realize that even after 10k miles, a good synthetic oil in these cars has barely any wear metals at all, and the oil's properties are still good enough that you could even drop it in your engine as a new oil and it would still work fine.
Same with filter changes. After 20k miles there has probably been so little wear in the engine, and the filter has caught so few particles, that even then you probably don't need to change it. I've never been a fan of gratuitous filter changes.
One thing I have learned here, like lots of other people, is that changing an oil at 3k miles is almost always nothing more than a waste of time, money and resources.
Your best bet is probably to run a good conventional oil 7500 miles and then do a used oil analysis to confirm that it is working properly. The used oil analysis will give you the confidence to repeat the longer intervals, and you'll save enough money to pay for it by the time that first 7500 miles is over.
An alternative would be to run any decent synthetic for much longer, probably 10k - 15k miles, and then do your used oil analysis.
Since your engine uses a bit of oil, it might help to do a run with Valvoline Maxlife, either synthetic or semi-synth. This is an excellent oil that usually results in very low wear, and it will likely help to recondition the engine's gaskets and seals and stop most of the usage.
Another alternative is an additive called Valvoline Maxlife Engine Stop Leak. Put half to a whole bottle in the oil and it will have the same effect.
Hope this helps. Learn your way around the used oil analysis section and stop wasting good oil.
