Ashton Crusher wrote:
On Sun, 26 May 2013 07:47:23 -0400, Ed Pawlowski wrote:

On Sun, 26 May 2013 05:56:18 -0500, "HeyBub"
wrote:

Which is better for fuel economy?

GMC has the answer.

http://www.foxnews.com/leisure/2013/05/20/tailgate-up-or-down-gmc-solves-age-old-pickup-truck-mystery/?intcmp=features


Sounds like it is publicity for GM. This was tested and proven a
couple of times over the years. While you are looking, the windows
down versus up and using the AC is pretty much a wash too.

From what I"ve read, once you are over about 45 mph it's not a wash
but you are better off with the windows up and using the AC. So it's
going to depend on the driving profile.

It gets way too hot with the windows up since the A/C died. Of course, that only
happens a few days a year.