With personal knowledge of it, 03 Nissan AF would have been green tinted and had the shorter service interval, iirc, 2years/~30k miles. Nissan has since replaced it with longer service interval 'blue' PHOAT premix. Ime, currently least expensive is WM Valvoline/Zerex Asian AF blue, $13/gal. Alternatively, Zerex Asian Blue sold in AP stores slightly higher. Pentofrost A3, if you can find it reasonably priced an option too.
Nothing wrong Peak OET premix, however last I checked at AZ priced ~$20/gal. Might as well go to Honda dealer and buy Type 2 for that price. Or check Nissan dealer price for LL premix blue price.