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On Thu, 2005-11-10 at 10:24, Jim Adney wrote: > The word out there for decades has been that driving 65 with the windows down > is less fuel efficient than running the AC. I've always thought that this was > probably a comparison between AC with all the windows fully closed, and no AC > and all the windows fully open. That seems like a pretty unfair comparison, > because I don't think many people would actually do this. Personally, I can't > imagine driving at highway speeds for long with all the windows fully open. > Opening the windshield fresh air vents under these conditions dramatically > improves airflow inside the car, and makes for a nice internal environment. > > This weekend I read in one of our weekly automotive columns, one which > generally seems to give good, rather than entertaining, advise, that even the > original claim is unsubstantiated. It makes me wonder if anyone has really ever > done this test. I think this was done a few weeks ago on Discovery channels Myth Busters. IIRC, They found that it was just about a wash. -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) '05 KIA Sorento SUV russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~