Quote:
Originally Posted by TimFreeh
Absolutely true - but let me ask you a quick follow-up question.
Was the R12 system that you used for baseline comparison and subsequent Freeze12 conversion working properly with a full R12 refrigerant charge when you made your vent temperature measurements?
If the answer is yes I'd like to know why you bothered to switch to Freeze12, if the answer is no I'm not going to accept your anecdotal evidence.
|
The 2 cases I mentioned dealt with a couple of older 3rd gen. Honda vehicles(1986-1989) that I once owned. Vent temps on like days(humidity/ambient temps) were recorded when R-12 was installed and gauge readings would indicate a fully charged system. Vent temps were in the 43-45 degree range with ambient temps right at 95F using R-12.
These vehicles are prone to developing faulty low pressure switches, especially after 10 or more yrs. of service - sometimes less. They leak and there goes the juice. I happened to have a full case of Freeze-12 available and decided to give it a go as these were old cars(over 300,00 miles) and I wasn't sure how much longer I'd have them in my stable. When I did this switch, Freeze-12 was approx. 1/3 the cost of R-12.
Systems were evacuated and recharged with Freeze-12. In the same weather conditions, vent temps were now 38-40 degrees with the Freeze-12. A year later all was well - same temps. I sold the cars, so I have no idea how that's worked out.
I'm acquainted with a fellow who owns a small Euro repair shop. While I do not condone his full-time use of Freeze-12, he claims that Freeze-12 produces colder vent temps. I do not believe he's gone as far as I did with the before/after data, but he has reported favorable response from his customers. Supposedly, many have reported their units are colder than in previous times when R-12 was in use. I realize this is not scientific, but it's kind of like the world of computer performance. One can view monitors and performance reporting information all day long, but in the end, the ultimate positive indicator is a phone that's no longer ringing.
In spite of all of this. I'm pretty much of the agreement that if you're going to keep a car long-term, R-12 is the way to go.
I was merely responding to the previous "and they're not as cold" post. One should not make such blanket statements.