if you don't have a compression/leak down tester, pull your plugs and see if one or several of the plugs are oil soaked? 65k isn't a lot of miles for it to burn oil. mine has 145k and it burns a quart of mobil 1 between every oil change (which i change it every 6k).
however, it is remotely possible that you have a good leak at the pan and oil is burning off the pipe.
have you considered a jdm swap??? 65k b18c1 on ebay should go well. i'd just drop my ebay account the second it sold.