Brothers of The Benz
I think R-134A will replace Synthetic Oil, Kleen Wheels Disc and K&N Air Filters as the number one opinionate topic on the Forum.
This is my second season using the new gas and my nuts haven't fallen off(but they could if I could get a third set of teeth in exchange), the evaporator hasn't exploded and the compressor is quiter than before using the ester oil.
As was stated, go to Auto Zone or K-Mart and purchase the complete conversion kit plus the capacity low side pressure gauge and hose.
In addition to the normal conversion items I added the "Hot Shot" charge with 2 additional ounces of oil plus a stop leak and red dye to note where if you have a leak.
Happy Trails Beep Beep from The Spiderman in Houston!!!