Should work fine. We used to go through all that bull. Lately though we just
change the Rec. Drier & add R134a. They said for years that the oils where
not compatible. And back then that was true. This doesn't apply to the newer
oils that are avail. today. Keep in mind R134a or equiv. will never cool
aswell as R12 in an R12 system. Also be careful about using any of the
aftermarket gases as some are actually propane. BOOM!!


"Harry" > wrote in message
...
>I have a license for buying R12 but I am considering changing over my A2
>with the retrofit kit.
>
> Obviously, prudence says to change the receiver-dryer and remove and flush
> the system for a perfect changeover perhaps using the PAG oil BUT:
>
> I spoke to a local discount auto parts manager who said "last year I
> topped up with a can of R12 but this year in one of my old cars I simply
> used the retro-fit kit and the A/C works fine." He did not change
> anything. (as the kit says is not necessary) I have read failures on
> compressors without doing a complete changeover (new receiver/dryer and
> flushing changing oil)
>
> The retrofit kit contains Ester oil <spelling?> that is more compatible
> with the R12 oil.
>
> Has ANYONE, long term, used the retrofit kit only WITHOUT changing the
> receiving/dryer and flushing, just using the kit with NO problems?
>
> Harry
>