dude, there's no ' R34 petrol choices ' LOL. Basically most of the skylines, silvias, supras are similiar. Just stick to 98 Octane and you'll be fine. Doesn't really matter Shell V-Power, BP Ultimate, Mobil Synergy 8000, Caltex Vortex 98, these 4 are the most popular choices. Different people may argue Shell is better than Caltex blah blah blah, but they are basically the same.