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Old 03-23-2015, 04:39 PM   #1
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Louvered Tailgates

Looking for opinions on using a louvre red tailgate. Supposedly saves fuel although I can't imagine it's significant.
We have a tonneau cover so will the louvre gate fit?
Appreciate any guidance.
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Old 03-23-2015, 04:57 PM   #2
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Old 03-23-2015, 06:53 PM   #3
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I put one of these on mine.
Heavy Duty Aluminum 5th Wheel Tailgates for Trucks | Husky Liners


I like the fact that it's cut out in the middle. Makes for a little more room for the pin box.
As far as increase in mpg----I can't say I have noticed any.
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Old 03-23-2015, 07:30 PM   #4
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I saw a mythbusters episode and have seen it discussed on some other show. The conclusion is No. Better off to have a full tailgate and keep it up or closed. This creates an air pocket improving how air flows over the cab. A tonneau cover has been shown to increase mpg up to 10 percent.
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Old 03-23-2015, 07:36 PM   #5
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I saw a piece on myth busters TV shows that did a test on the question of tailgate up or tailgate down for best gas mileage. The result was that tailgate up was most efficient on newer trucks because the engineers had figured in the shape on the top of the tailgate in the overall aerodynamics of the truck.

Here is the explanation

Driving With Tailgate Up Is Fuel Efficient | MythBusters | Discovery

I suspect that a louvered tailgat would eliminate the aerodynamics created by a closed tailgate and be less efficient.
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Old 03-23-2015, 07:56 PM   #6
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A gate like Lloyds is nice since you don't have to put it down to connect up. As far as more mpg, not so much.
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Old 03-23-2015, 08:40 PM   #7
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John,
that was a calculation we worked on in my ChemE flow dynamics test when I studied at LSU

Calculate the drag coefficient difference for the tailgate up or down -
very important to those southern pickup owners !!!

all that boundary layer theorem I've long since forgotten
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Old 03-23-2015, 10:51 PM   #8
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Yea, I was going to be an engineer but Calculus III at Auburn changed my mind ��.
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Old 03-24-2015, 04:48 AM   #9
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A mileage thread on a travel trailer forum is like that 0-60 thread over on the Prius forum.
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Old 03-24-2015, 11:46 AM   #10
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New member here. I am still working on an intro post but couldn't resist responding.
We downsized by 8 ft/4000lbs to a Cruiser Aire and I was amazed that I could not have hooked up to it to leave the dealer if I had to put the tailgate down. (the pin box is realllly short!) Fortunately I had a louvered tailgate which saves me a lot of time and angst anyway and, personally, I would not be without one. The only downside I have found is that mine is only rated for 200 lbs when open which means I can't stand on it or wrestle heavy items across it. Otherwise I love it.
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