Oil for LPG Air Con.

**Dougal** · 25th January 2008, 03:31 PM

I've collected enough fittings to recharge my formerly R12 aircon with hydrocarbon gas. The r12 leaked out about 10 years ago.

Is there a common oil which can be substituted for the lubricant in the system? My pump was off a few months back and appears to contain none.

*edited for correctness*

**locorr** · 25th January 2008, 03:49 PM

Why do you want to put lpg in your aircon. Maybe I've missed something wouldn't be the first time.

**Pedro_The_Swift** · 25th January 2008, 03:52 PM

Ladas is the one you need to ask,,

**loanrangie** · 25th January 2008, 03:59 PM

Originally Posted by locorr

Why do you want to put lpg in your aircon. Maybe I've missed something wouldn't be the first time.

You can use lpg as a refrigerant in a/c systems.

**B92 8NW** · 25th January 2008, 04:25 PM

Shell Clavus

**Dougal** · 25th January 2008, 04:27 PM

Originally Posted by locorr

Why do you want to put lpg in your aircon. Maybe I've missed something wouldn't be the first time.

In addition to what the other guys said. To convert an R12 system to the R134a which all the commercial guys want to use will cost me big bucks. The LPG is cheaper, easier to get, more environmentally friendly (i.e. not an ozone deplete) and compatible with the parts I already have.

Yes I am waiting for Ladas to chime in with the oil, but he might not be the only knowledgable one.

**Dougal** · 25th January 2008, 04:40 PM

Originally Posted by joel_nicholson

Shell Clavus

Thanks, but I was hoping to find a more garden variety of replacement. Hopefully a mineral oil rather than synthetic as I live in hicksville.

**p38arover** · 25th January 2008, 04:42 PM

Originally Posted by Dougal

In addition to what the other guys said. To convert an R12 system to the R134a which all the commercial guys want to use will cost me big bucks.

I had my RR classic converted and it wasn't expensive. All that was changed was the receiver dryer.

**Dougal** · 25th January 2008, 04:47 PM

Originally Posted by p38arover

I had my RR classic converted and it wasn't expensive. All that was changed was the receiver dryer.

If you get a good aircon guy that'd probably be right. But the guys here would be charging me for receiver/dryer, oil, fittings, dye, seals etc as well as the gas. On top of all that, LPG appears to be a better gas than R134a so I'm going down that route.

**isuzurover** · 25th January 2008, 04:55 PM

I'll be doing this soon too, so would be keen to know how it all works out Dougal.

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