As far as oil goes, most of the SE-R community uses Mobil 1 oil and either Mobil 1 filters or Nissan filters. Personally, I run Mobil 1 5W30 and a Mobil 1 filter. As far as Fram goes, sorry bro, but YUCK!! I'll NEVER use Fram again. But, you can go here: http://websorcerer.com/GeekOut/index.html and see for your self what filter you want to use.
'98 Super Black SE w/stuff
all i use in my se-r is castrol 20/50. any filter will work, but i'd stick with something like a fram. some people prefer the nissan filter, but that's just up to you. just be sure not to overtighten your filter. the filter is in a pretty tight spot, just remember snug, not tight. you are eventually going to have to get it off again. lates.