Re: [AMC-List] AC installing

[Tom Jennings <tomj@xxxxxxx>]

On Thu, 1 Jun 2006, Sandwich Maker wrote:

> no, you don't have to use r12.  the compatible stuff is in fact
> compatible.  the main issue with it is they can't recycle it the way
> they do with r12 or r134 because they're single compounds which can be
> easily separated from the oil but compatibles are afaik all mixtures
> which if anything are too compatible with the oil and not separable at
> all.  also, it's fairly well known that r134 isn't quite as frosty as
> r12, but i've heard that some of the compatibles cool better.

I can find no independent research that supports the assertion
that any of the blends or replacements are better than h134a
or r12.

All of the OEMs that have retrofit instructions (eg. 80's/90's
GM, etc) recommend 134, only. 100% of them.

The EPA has done a lot of research for industry, back when a
replacement for R12 was sought, and ongoing, and has not come
up with a better substance than h134a.

It seems to me that the only organizations that claim
blends/replacements are better are the ones that sell them!

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