Dealers tend to use Castrol Edge 0w30 but there's an opinion that it could be a tad too thin. I've used it, but I've also used 5w30, 5w40, and 10w40. Doesn't really matter as long as you change it frequently.
i.e. a cheaper 10w40 changed more often, might be better than Castrol Edge 0w30 changed less often