I too am coming up on my first “free” service. My dealer only uses synthetic, but he did not specify it was Honda Branded oil. They also requested that I bring it in every 5,000 miles and not to wait for Maintenance Minder notice. They do not like to wait that long. As it’s free, and I always change mine at 5K also, I’m in full agreement with them. Since the dealer provided a FREE lifetime power train warranty (free for every new & used vehicle purchased there), I’m not too concerned if they use Honda oil or something else that meets specs. The warranty is backed by a 3rd party, so if the dealer were to change hands or go out of business, the warranty remains, good nationwide.