Use Honda MTF or Amsoil.
I've got Land Rover MTF94 in mine. It's a fair bit cheaper than Honda.
vita, isn't that "nut" the o2 sensor? It's probably leaking from the rocker gasket and dripping down? spray the whole area with Gunk (covering up any electricals) and give it a good clean, then look where the oil appears first.
Last edited: