The MACS 2008 Mobile A/C Update clinic manual is now available for purchase. MACS 2008 Mobile A/C Update clinic manual includes information on: A/C and its effect on fuel economy, new refrigerant info, building A/C hoses, charge accuracy needed for today’s tight tolerance systems, chasing electrical gremlins, and more. MACS 2008 Mobile A/C Update clinic manual is available in the MACS online store at www.macsw.org for US$20 plus shipping for MACS members and US$40 plus shipping for non-members. Books can also be purchased by calling 215/631-7020, dial “0” for operator. Founded in 1981, the Mobile Air Conditioning Society (MACS) Worldwide is the leading non-profit trade association for the mobile air conditioning, heating and engine cooling system segment of the automotive aftermarket.