I recently had my 300D A/C regassed with HR12, the commercial replacement for R12.

Cooling capacity is maintained.

Doies anyone know the environmental effects of HR12, and its availability for automotive A/C applications?

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.

This is the first I've heard of HR12. What's in it?... is it a blend?

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95 E320 Cabriolet, 169K

from this site - http://www.hychill.com.au/

HR12 is a blend of R600a and R290, two naturally occurring hydrocarbon refrigerant gases and is perfect for use in automotive air-conditioning systems and in refrigeration applications.

HyChill HR12 is derived from uniquely pure natural gas sources, and manufactured to the strictest quality controls.

HR12 is efficient and safe to use, requiring no modification to air conditioning systems and minimal modification to most refrigeration systems.

HyChill HR12 ensures exceptional energy efficiency, dispersing heat much more effectively than fluorocarbon equivalents.

Substantial cost savings for long term operation are achievable by replacing fluorocarbon refrigerants with HR12.

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1984 300D Turbo - 231k....totalled 11/30/07 RIP

Sounds like propane to me.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

pretty much the same as Duracool R-12. I like D-Cool and if you search you will find all kinds of info both pro and con

you're really sticking your neck out saying that here reboot!!
but since you said it first, hehe, i admit i like it too, but only in moderation. there , i'm out of the closet

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1984 300D Turbo - 231k....totalled 11/30/07 RIP

I am under the impression that most new German refrigerators just use propane. If it bothers you to think of putting propane in your car, just go to the local propane outlet and ask them to fill your tank with naturally occuring hydrocarbons and it should put your mind at ease.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

I have said it many times before if you search that I LIKE and USE Duracool 12-a in both of my 123 cars. Also used it in a 63 t-bird last year. I have my card to buy the real deal but can't justify the cost unless I am doing work for someone else and they want to pay for real r-12. It may not be legal to use in my state but many of the people in my state are to stupid to figure out how to vote so I figure the people who make the laws are just as stupid so the law banning hydocarbons is equally as stupid

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OK.

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Never a dull moment at Berry Hill Farm.

It took a little searching, but i found that HR12 is similar - if not exactly the same - as Duracool. Fact is HR12 is a blend of propane and isobutane. The Hychill web page doesn't come out and say that for some reason. I've heard wonderful things about this refrigerant. Next time I need to convert an r12 system I'll be trying it. One caveat with this refrigerant is that should you have a leak in the system, the propane and butane don't leak out at the same rate.

For the people who want to point out the fire and explosion hazard of HR12, just remind them of the 13 to 20 gallons of volatile and explosive gasoline they carry around in their gas tank, some of it already mixed with oxygen!

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95 E320 Cabriolet, 169K

"13 to 20 gallons of volatile and explosive gasoline "

We've been around this tree before. I think I need to unsubscribe from this thread.

If anybody wants to see the original discussion, it is here.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References