View Single Post
Old 03-11-2008, 12:06 AM   #9 (permalink)
Chris D.
EcoModding Minded
 
Chris D.'s Avatar
 
Join Date: Jan 2008
Location: Eagan, MN
Posts: 667

Lunar Mist - '02 Toyota Tacoma SR5
90 day: 25.31 mpg (US)

Silver Streak - '08 Toyota Corolla S
90 day: 38.25 mpg (US)
Thanks: 67
Thanked 25 Times in 12 Posts
Send a message via AIM to Chris D.
Quote:
Originally Posted by Big Dave View Post
This has been a topic of discussion amongst Ford Super Duty owners. The general rule of thumb is to run with windows down up to about 35 MPH. Above that, the aero drag penalty exceeds the A/C load and it is better to run the A/C.

I have WeatherTech visors which are similar to your and they give me a third option in some weather conditions. I can run with the windows down to about a half inch above flush with the bottom of the Weather Techs and get decent cooling without the drag penalty. When the window gets lower than a slight overlap, you can feel the drag increase.
mite be a worthy deal to do a yarn string wind test?
__________________


  Reply With Quote