Over last winter, I'd occasionally put the a/c on to quickly defog the windows and noticed that each time(over several months) the A/C was less and less.. potent. I am aware that people often refill their R134a(mine is the newest type), but have searched the web and found no diagrams or tips at all! Has anyone here done it to a honda, or have any experience to pass on? THe heat has struck and there's not a chance I'm paying Honda $250 to do it ^_^ Thanks!