Hydrocarbon refrigerant is safe in automobiles
 

hydrocarbons21.com Cold Hard Facts 2: 8% of Australian cars use HC refrigerants

"20 years of safe use of HCs in vehicle AC

HyChill’s team includes people who have been working with hydrocarbon gases for more than 40 years possessing an enormous depth of hands-on experience and understanding of them. “That’s why we knew it was safe to use in car AC and why we persisted, against incredible pressure from the competition, for the past 20 years to prove it. To see this fact finally recognised by a truly independent authority is a huge milestone.”

“I don’t know how much evidence it will take to convince some people that hydrocarbons are safe to use in car AC,” continues Clark, “It would be reasonable to expect that 20 years and millions of vehicles would be sufficient to sway even the toughest critics.”

Then drive backwards! Wait, the fuel tank is back there!

Better not drive and stay home, turn into a couch potato.

There are places all over the world where safety regulations are not as strict as the US.. that does not make it smart to follow their criteria... AND you never know when their regulations are influenced by big money or political PC...
HC's are just fine for NON MOVING ac systems...
and putting a HC into your system still does not help the fact that you will have a hard or impossible time finding any shop to work on it once you make that change...
IS is legal to put a HC into the AC on a moving vehicle in the US ?

meh...

those studies are performed upside down... AU... crazy upside down area.

anyway, it does not matter the studies. it's up to you... but any insurance litigation could be an issue... it's illegal in most states in the US.
Period.

So you are discrediting Australia as a nation because they are upside down to us on the equator? What a load of ****. Of course studies matter, all studies. You have to read between the lines and see for yourself which ones are special interest and which ones makes sense.

I just think the whole issue is overblown. There are multiple millions of vehicles using hydrocarbon refrigerant...and how many fire and brimstone infernos?

And don't tell me that none of them have been wrecked...

Australia is NOT one of those place. In many ways their sefety regulations are far stricter than ours.
If you're putting any HC in your AC chances are you're not they type of person that would ever go to an AC shop.

^^^ This.

So I bought a 3 pack of Dustoff from Walmart for $12 and charged the system. There was still pressure in the system after the blown hose which vented most of the ES12a and some oil. I rented a single stage vac pump from Autozone and evac the system for about 1/2 hour and charged about 1.5 oz of PAG oil, evac again and charged the Dustoff/ R152a/ Difluorethane. I was only able to get 2 (10 oz) cans in there and ended with pressures of 25/ 155 psi at ambient of 75F.
http://i31.photobucket.com/albums/c3...2_165820_1.jpg

Took it for a drive today at 85 ambient full sun. Cruising on the hwy got 40F out the center vent. https://www.youtube.com/watch?v=ELVQQ1Qtds0

This is as cold as ES12a and may be even colder if I can get a little more R152a into the system. I'll continue testing and monitoring the performance with R152a. Screw 134a at $15 a can. R152a is $4/ can (less if you shop around) and widely available, non ozone depleting, and colder than R134a ever was.

https://www.youtube.com/watch?v=ByEreIk8PqI

https://www.boconline.co.uk/internet.lg.lg.gbr/en/images/sg-045-r152a-11-difluoroethane-v1.3410_39625.pdf

http://www.aa1car.com/library/flammable_refrigerants.htm

https://www.epa.gov/snap/choosing-and-using-alternative-refrigerants-motor-vehicle-air-conditioning

134a at walmart by me, 4.55/12oz. Can...

But for me, R152a works better than R134a.

Leathermang, that's not a flamethrower. Enough with the hysteria, we all have become well aware you don't like anything outside the norm.

You've warned us, now just let the others experiment.

"Other than the movie industry will have us believe
post collision vehicle fires are a very seldom event."

"A car is driving on a scenic county road. Suddenly a
large truck comes along and crashes into the car. The
car, totally smashed, immediately bursts into flames.
The truck explodes two seconds later in a breath-
taking scene well known from many movies.
However, reality is far removed from such nightmare
scenarios. Vehicle fires are a rare occurrence. Most of
them are caused by technical defects or improper
repair and pimp-up efforts. Post collision vehicle fires
account for only a very small proportion of fire
events."

Gases - Explosion and Flammability Concentration Limits

The flammable vapor % by volume must be between a very narrow range and a spark or flame must be present at the same time for ignition to take place.