FoolhardyIDI
Full Access Member
just reluctantly completed my 134a retrofit last weekend, spec calls for 10 oz of oil (i used ester oil) and 52 oz refrigerant. I was surprised to see that after only two 12 oz cans my pressures were perfect and ac was blowing ice cold air.
I do retrofits all the time from R12- R134a and it always takes way less to fill the r-12 system with r134a that what the books will tell you it takes to do.