If you do a considerable amount of highway/ steady speed driving, you can go longer on oil changes. At about 5000 miles on my 2012 SI I was at 15%. My wife's 2013 EX-L V6 Accord Coupe has 5600 and at 30%. They are definitely driven all together different. On my SI, I will start to pay attention to the minder at 5000 miles intervals. I figure that Honda spent large amounts of money developing this system and they are the ones going to be paying for my engine if it goes boom, why not go by what they recommend. If your really concerned, pull an oil sample and send it to Blackstone labs and let them tell you how well its doing. I may do this at around the 10,000 mile mark and go from there. Its about $20 or so and it gives you a break down of your oil contents and a recommendation on how long you can go on your oil changes safely. check em out here
http://www.blackstone-labs.com/