Duragloss 501 as a base and optiseal as LSP, juice it up with AW every wash. Looks amazinly wet and reflective on ford oxford white. I really recommend using the DG501 on any white as a base because of its cleaning ability, the best AIO i've seen.
i have two artic white vehicles now but have owned "white" for 36 years. i use nxt on them as they are GQ's. it's a nice easy no fuss OTC product. for extended durability i've been using IW 845 since 1973. FWIW.