Quote:
Originally Posted by rockfan4
I'm kind of surprised that they could sell you a can.
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You can even buy R12 if you swear on your Mom's grave you wont use it and only resell it. If you want to buy a big tub of either (R134a or R1234yf) I think you need an EPA 609 certification which is very doable with an online test through the Mobile Air Conditioning Society MACS. I learned a lot from it but I learned more in the tech forum here. Charlie Griffith, Ronnie and Glen (and the search engine) are a good start to taking it up a notch.
Advance had/has the 1234yf for $46 per can. The cans
on the upside are 2/3'ds the size of R134a. Walmart has R134 for $10 and Honeywell R1234yf for $38.
I remember helping a lady's son out with his weak blowing AC - 2016 (pretty sure) Civic and I had to buy a new vacuum pump as well as the R1234yf accessories. A $300 day. The vacuum pump works on either system.
Back in the day the 930 used 48 oz's of R12 but you could buy 30 pounds at Costco for $90 which would cost $9 for a complete evacuation and refill.