cnewingham said:
I think you got r134. no one in thier right mind would let r12 go that cheap.
Also swithching from r12 to r134 is not as simple as a retro kit to do it the right way.
Yes it is. Pick up a can of A/C flush at you're local auto parts store and follow directions, vacuum the system, fill with 134a oil and coolent.. done. All that change o-ring crap is nothing but a fallacy
I've done this to 2 cars in my garage with a simple 20yo snapon vacuum pump, both freeze you out of the car.
SC300 systems are a piece of cake and work great with 134a because they are constant on, they don't "cycle" on and off.