No
Duracool etc are "hydrocarbon" mixes to substitute R12a, it is not R12a. R12a are still available at Marine shops (it is pretty expensive now).
R134a is what is commonly used but it is still not very environmentally friendly. It is being replaced by Dupont's HFO-1234yf, Mercedes and Cadillac are the first with commercial products S class and XTS.
I would suggest if it is among friends.. have a meet up.. charge up the systems with coollant and a dye (usually option kits would have it), everyone run the AC system for a week.. then meet up again in an evening like tonight.. check for leaks with a dark light.. then add lub etc and coolant for those cars which are not leaking.
Note: the coolant + oil acts as a lubricant for the compressor.. so you need to add the oil along with your coolant. Since you don't use too much of it.. that's why I suggest have a group meet to make material use more efficient. Another thing not to do, don't cheap out with the cheapest hose, get ones with a pressure reading, so you don't overcharge / undercharge the system. R12a runs at a higher pressure vs R134a.. look the values up on your repair manuals before you guys meet.
If you are environmentally responsible.. get a empty propane tank and a scale.. weigh the empty tank and evacuate the coolant before you recharge.. there are places that actually buy back coolant.
Harbour freight actually have a decent AC setup cable set for $60.
Quote:
Originally Posted by Geoc
I thought the ones they sell here is r12a (propane), whereas most cars use r134a?
you can't recharge r134a here without a license, the US have recharge kits for r134a at walmart though.
|