R-134 conversion

[f00g00]

Originally Posted by theWeezL

" As for the compressor oil, ya do know they make a 134a bottle that has the proper conversion oil right in it dont you?".

You still have to get the old R12 oil out by flushing it. The two oils are not compatible so your looking at problems by mixing the two like early compressor failure possibly. I don't see a backyard mechanic with the proper tools to flush and evacuate an AC system.
I just mean if your going to go to the trouble to do the job then do it right the first time.
Im an aviation electrician and work on military jets so maybe I'm a little to over zealous about doing preventitive maintenance when possible.