I was a shop owner during that time and it wasn't fun. Up here we were told "NOT AS HARMFUL to the O-zone layer/environment" but still needed to be recovered. So buy or build a second recovery unit is what we did. I guess it wasn't till 2007 till the EU came out with some actual measurements of how harmful each gas is.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)