alright this one is being a major pita... its on an 89 nissan sentra... has a slow transmission leak, the fill plug is a 3/8 drive plug.... i've sprayed it with industrial grade penetrating oil, put a 3' breaker bar on it and even tried coercing the breaker bar with a nice deadblow mallet..... i've also tried freezing the plug to get it to shrink just a little bit but nothing seems to work..... cant get this thing to move, and if i can't get the fill plug out, i cant put fluid in it.... any suggestion that might help?