---- Karl Wolz <wolzphoto@Q.COM> wrote:
>
> This trip is the first time I've used the AC in about 15 years, and the
> frist time I've used with the 2.1L engine; how much should I expect the A/C
> cut into fuel economy?  I drove about normal speed (65 - 75) for most of the
> trip; this usually yields just shy of 20 mpg.
>
I have not actually run a comparison in a controlled manner.  I have read a couple sources, including the automobile column by "Click and Clack."  They say that generally about one mpg difference for most automobiles.  I have noticed that on the highway (I drive more like 60 mph with my '91 Campmobile with regular 2.1 engine), I get mileages that range from 17 to 23 without using AC and the same using AC (wind makes a big difference).  But a systematic, controlled comparison might show a lower average for AC.

mcneely