Hey yall just bought a 1993 hdj81 from japan, and I got a couple questions. It has a diesel in it, and I don't know what oil filter to get or what oil viscosity I should be using. Also, a few problems I noticed is the windows sometimes won't roll or get stuck up all the way. When I press the ac button to circulate in the car no air gets blown out. The doors won't lock unless I put the key in it, and the most annoying issue... where do i get cupholders for the right hand drive??? Any help is greatly appreciated. Sorry for the noob question.