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Old 06-22-2011, 07:11 AM
bmjwright bmjwright is offline
Liking the Ford Ranger Forum
 
Join Date: Jun 2011
Posts: 15
Default Re: Air Conditioning and Gas Consumption

Max AC only moves the damper door from pulling outside air to using inside air, so the compressor is doing them same work and wouldn't have an effect on mpg.
The fan on high, using more electricity, will make the alternator work harder and have some effect on fuel economy. But I suspect the difference would be negligible.
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