Originally Posted by
gp02a0083
eco what you described as the r-134 conversion is practically what they typically do at any shop. they need to evacuate the r12 and collect it to have it disposed of b/c of the whole CFC's and ozone getting chewed up , the 134 is considered to be a "greener" alternative.
my father bought a case of r-12 cans and has been selling them over the years, that stuff last i looked was like $40 or $50 a can, he was telling me that the 134 went up to about $20 a can
I've converted my last two hatches to 134 without an issue at all, i had my gold hatch for 5 years, the A/c system worked like new out of the factory and still had the original A/C pump. We also converted our 91' aerostar to 134 years ago without a problem.
As a chemist i don't believe that the DEC PAG oil does not absorb water moisture, practically everything does to a certain degree, but it might be the case where the moisture adsorption /absorption is very low.