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Similar experience Posted by Bill Homer [Email] (#3427) [Profile/Gallery] (more from Bill Homer) on Mon, 18 Jun 2012 10:42:55 In Reply to: caveat emptor applies, dref, Mon, 18 Jun 2012 09:26:39 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Based on prior info gleaned from several recommendations here, I converted my 1996 Audi A4 from R134a to Duracool last summer, along with their stop-leak product. This car had previously had a "slow leak" from the evaporator (a well-known issue on that era of Audis), replacement of which is a several-day, complex DIY job or about $1800 at the dealer. The system previously held pressure for a couple of weeks up to months; after conversion it worked fabulously for a day, then stopped working completely, emitting a laquer-type smell in the interior (the stop leak product?). I got rid of the car last fall informing the buyer that the A/C did not work, sold it cheap for an otherwise well-functioning and maintained car.
The R134a molecule is CH2FCF3, whereas butane is C4H10. Not sure on the relative molecular sizes, but Duracool's claim may be true.
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