Hmm, makes you wonder why every auto manufacturer has been using R-134a in their vehicles since the early 90's. You would think that if there was a more efficient refrigerant (like some of the alternate refrigerants claim to be) out there they would be installing it instead  and it, not R-134a would be available at Wal*Mart.

I haven't had any problems with the efficiency of R-134a in any of my vehicles. Most times its the support hardware; blower motors, fan switches and wiring etc... that keeps my A/C from working properly.

What sub-tropical part of the country are you located in that taxes an automotive air conditioning system so much?:>)

Tim

Robert Cardo <rrecardo@WEBTV.NET> wrote:
You had better start finding and buying all the inefficient 134 A that
you can find if this is the way you choose to go with your AC system's.

Dupont, and one other company that makes the alternative freon's patent
rights run out in two years, and currently the price for the 134A is
between 350.00 and $475.00 per 30 lbs. bottle.

If you can locate it at Walmart, K-Mart for on the cheap, jump on it.

It won't be for long.

Mineral oil is used in R-12, R-12A systems.
Ester or PAG oil is used in the 134 charged sytems.

TJ Hannink
Goldibox - 1987 Vanagon Camper, Wolfsburg Edition
1981 Bluebird Wanderlodge, FC-33
Winter Park, Florida
http://home.earthlink.net/~tjhannink/
http://groups.yahoo.com/group/wolfsburg_campers
http://groups.yahoo.com/group/FC_wanderlodge
FAVOR website:  http://home.earthlink.net/~clubvanagon
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