M, Well, maybe not now, but at the time R134a seemed to be the only widly availible alternative. At the end of the day it didn't cost an arm and a leg to change and it works so I am happy. If people are running on R12 and there is a straight swap that is cost effective and availible then that is probably the best route to go down. I am no expert on air con, just take it to an aircon mechanic you can trust, either way I would definatly go for the UV dye. James RG Vin# 5462 working air con, duff engine :-( --- In doc-uk@xxxxxxxxxxxxxxx, Martin Gutkowski <webmaster@xxxx> wrote: > But.... would you go through the conversion out of choice if it was > pointed out to you now that R12 replacements are available? > > Martin >