I recently discovered the source of my oil leak, which turned out to be the oil pressure sending unit or "oil pressure switch." Props to Rick and www.zotz.com. The updated part number is 25240-89960. Easy procedure, cost was $15 from local dealer. I used a 1 1/16 deep well socket. I found that a twelve point socket wouldn't work but a 6 point would. Brian ===== 92 SE-R w/ mods