No not quite, they are hydrocarbon though.
With an old AC check for leaks before you put in the HC12 refrigerant.. you don't want it to leak while your car is stuck in traffic. Flammable gas + hot engine = not good idea. Hence most shop won't do it due to liability.
The HC12 are really common these days, KMS, princess all carries them as DIY.. but be aware any coolant left in your system can be resold for $$, you need a PSI gauge to refill so buy their accessory kit. You might want to get the propane tank size one which they sell to refill and empty system, instead of the small ass can..
What I suggest (Assuming you have a compressor):
0. Get a group together, get the accessories.. PSI gauge, spare hoses, silver insulation tape etc.
1. Check for leaks with a dye kit.. you can see dye with UV source like LED flashlights.
2. Inject the dye kit into all cars and drive a few days with AC running.
3. Repair leaks usually just a few busted hose that you can crimp new ones.
4. Recharge all cars with same accessories and one big bbq size HC12 tank.
CHECK FOR LEAKS AND FIX THEM BEFORE FILLING!
You can see what you need to get (accessories etc) from
http://duracool.com/ and KMS sells Duracool.
It is not rocketscience but you do need to do the math.. a guide is here
http://www.duracool.com/Duracool/quickinstal.html Quote:
Originally Posted by !LittleDragon Aren't R12 substitutes mostly propane? |