From what I read its cools 30% more than R-12 because it is a gas with better heat transfer..(?) ANyhow its cheaper, and guaranteed to work and not break anything....
I'm gonna try it, I just never did A/C before and am

...
Do I need to evac at a facility of some sort??? I guess the rest of the disassembly I will learn along the way.. Do I really need to replace the drier? (why?)
Thanks..