There was a thread on fuel milage a couple weeks ago and it was suggested that it's actually more efficent to run with the AC turned on than with the windows open. I tested this over the weekend driving 400 miles in my '98 Durango. At 70mph we got 15mpg with the windows open for 200 miles. With the windows closed (same speed) and the AC on we only got 13mpg for the second 200 miles. This was confirmed with the instant MPG readout and a miles/gallons calculation after refueling at the 200 mile mark.
While this may not be true for every vehicle I'm fairly convinced its more efficient to avoid using the AC. (I also acknowledge that 70mph in a Durango is not the most economical way to travel)
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Today's Featured Article - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
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