Lots of opinions on this one.

Some say that an original R-12 system will not cool down well after conversion to R-134a.

Others say it will.

There's a member here named Stan Pittman. Look at his profile. 30 yrs. euro car experience. He claims that the 134a conversions do work. I went looking for this thread, but could not find it. In it, he told Larry Bible that he was full of !@#$. Webmaster probably locked down the thread. Stan operates out of South Carolina. I lived not far from there once and summers are hot & humid. If R-134a works there, it will work in many other HOT places.

I believe that a refrigerant conversion is a lot like automotive body work. There's a lot of prep involved and if you do not do it correctly, the job will end in failure whether you're replacing an R-12 system with R-12 or converting an R-12 system to R-134a.

Larry Bible has recently mentioned $14.00 a lb. R-12. He has also mentioned refrigerantsales.com, so I assume he's buying it there. I just looked on their WEB site and a single 30 lb. cyl goes for $575.00. That comes out to $19.16 a lb. - not $14.00. Even in bulk, it's no where near $14.00 a lb., so I guess he's getting it elsewhere.

I saw R-134a the other day for $7.88 - a far cry from $19.16 and a lot more accessible.

Do the job right and R-134a will work.

__________________
'91 300-SEL