I have heard of R's 11,12,134a,22,290,600a,502,407,406a,even R717; but I have never heard of, nor can I find any reference to, R-145a as a refrigerant used, bought or sold in even a remote consumer connection. Are you sure he said R145a? I he did, I'm wondering........

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)