What's so special about Honda's FF? High Moly? What else? If it was mine, I'd change out the oil/filter @3K and use a high moly oil. Then let the MM run down to 15% and let the dealer do the next oil/filter change. As far as Napa Synthetic, isn't it a rebranded Valvoline oil? Since you have 3 cases you should be set for 7 OC's! Wish you many safe and happy miles!