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Old 09-11-2015, 09:09 PM   #9 (permalink)
Mustang Dave
Intermediate EcoDriver
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Join Date: May 2009
Location: Northern Arizona - It's a DRY cold..
Posts: 671

Trigger - '07 Ford Mustang V6 Premium Coupe
Team Mustang
Sports Cars
90 day: 32.76 mpg (US)

Big Red (retired) - '89 Ford F-250 4wd Custom
90 day: 18.13 mpg (US)

Big Red II - '13 Ford F-150 FX4
90 day: 18.79 mpg (US)
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Originally Posted by Daox View Post
The best way to use A/C is put the temperature control on full cold. Then, turn your fan on the lowest speed setting to stay comfortable. However, the fuel economy hit can still be pretty drastic. Some reports say up to 30%. I find it much lower in my experience, but I use it very minimally.
Also, set the A/C on "max" or "recirculate". Then you won't be dumping cooled air outside your car. And if you can can control the compressor; turn it on until it's cool enough (preferably when going downhill or decelerating); and leave it off until you're uncomfortable.
Fuel economy is nice, but sometimes I just gotta put the spurs to my pony!

Originally Posted by thatguitarguy View Post
Just 'cuz you can't do it, don't mean it can't be done...
Originally Posted by elhigh View Post
The presence of traffic is the single most complicating factor of hypermiling. I know what I'm going to do, it's contending with whatever the hell all these other people are going to do that makes things hard.
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