Dupont and Honeywell are making the new refrigerant that is mandated for Euro cars for the year model 2012. It's HFO1234YF. We probably won't see any mandate on this side of the pond until model year 2017.
That's what the new word is in the mobile ac community. Get your 134a in the winter at Sam's Club, unless you know someone who has a surplus and is liquidating, that is the way to go for now. Parts stores are in excess of $250 for a 30lb cylinder of 134a, wholesale.
If you think the freon is bad, wait until you guys have a compressor failure on your newer rides and you have to replace the condenser. You can't flush a micro-tube parallel flow condenser, and almost every vehicle is headed toward that design. I could go on and on, but won't.
Cut away pic of said condenser.
