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Old 03-08-2008, 04:34 AM   #1 (permalink)
Chris D.
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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)
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When does having your windows down start to effect your mileage?

I was curious if anyones ever logged any #'s for windows down and when it really starts to effect FE?

I have vent visors on my truck and when on the freeway I have the cool air vent on (no fan) using the cowls pressure to push air into the cab..

I also have my windows cracked slightly in addition to the vent visors..
Here are the visors..

Not my truck, but same exact design..

I orignally bought them because I like a bit of breeze when driving and I dont like getting wet when raining..

Ya think these are helping things a bit vs not having them with just the window cracked open?

I'd just like to hear some opinions or data..


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