Which is more fuel efficient: Driving with windows open OR the AC on?

Subject: Which is more fuel efficient: Driving with windows open OR the AC on?

Date: Wed May 3 12:08:41 2000
Posted by Joelle
Grade level: grad (science) School: No school entered.
City: No city entered. State/Province: NJ Country: No country entered.
Area of science: Engineering
ID: 957373721.Eg

Message:


I have heard driving with the air condition on (windows closed) is more 
fuel efficient than driving with your windows open. Is there a difference 
between cars with opened: 2 windows, 4 windows, a back window and a moon 
roof? Thank you!

Re: Which is more fuel efficient: Driving with windows open OR the AC on?

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