Tail gate up or down for fuel economy
05-24-2011 | 09:24 PM
#11
Registered
Joined: Jan 2011
Posts: 2,228
Likes: 0
From: SoCal
Saw this episode a few years back on a oval track, I think it was a Nascar track...
They also did the test to AC on AC off while driving.....
Who know's really.... but their results show'd tailgate down did nothing to improve fuel economy...idk
Same thing w/ AC and MPG...
They also did the test to AC on AC off while driving.....
Who know's really.... but their results show'd tailgate down did nothing to improve fuel economy...idk
Same thing w/ AC and MPG...
05-24-2011 | 09:41 PM
#12
Registered
Joined: Oct 2006
Posts: 1,449
Likes: 0
From: Michigan
Since we are talking mythbusting...
Is it less expensive to keep furnace at a constant temp or to turn it down 10 degrees while away or night then when returning or morning turning it back to normal?
I had seen an episode a few years back on leaving lights on or off. It was always less expensive to turn lights off then on no what the circumstance was....even if leaving the room for a split second. They even factored in cost of light bulbs burning out and replacing.
Is it less expensive to keep furnace at a constant temp or to turn it down 10 degrees while away or night then when returning or morning turning it back to normal?
I had seen an episode a few years back on leaving lights on or off. It was always less expensive to turn lights off then on no what the circumstance was....even if leaving the room for a split second. They even factored in cost of light bulbs burning out and replacing.
05-24-2011 | 11:17 PM
#13
Registered
Joined: Jul 2010
Posts: 286
Likes: 11
From: Evansville, Indiana
its been proven over and over. Leaving it up creates a low pressure zone in the bed pushind air out and making truck more aerodynamic. Leaving it down creates turbulence low in the bed. watch a cup in the back as you drive. It will slowly move around and then if it gets higher gets sucked out fast. That is the low pressure area in the bed acts like a bubble.
Bingo, just like air going over an airplane wing.
05-24-2011 | 11:44 PM
#14
Banned
Joined: Feb 2005
Posts: 9,373
Likes: 1
From: Arlington Tx
05-25-2011 | 04:08 AM
#16
Registered
Joined: Jun 2004
Posts: 476
Likes: 0
From: Wichita, KS
Mythbusters is TV, not science.
Keep your tailgates up.
Kevin Cooper from the National Research Council of Canada has a good technical paper on this subject (SAE 2004-01-1146) Here's a summary of the paper - http://www.nrc-cnrc.gc.ca/eng/news/n...down-myth.html
Keep your tailgates up.
Kevin Cooper from the National Research Council of Canada has a good technical paper on this subject (SAE 2004-01-1146) Here's a summary of the paper - http://www.nrc-cnrc.gc.ca/eng/news/n...down-myth.html
05-25-2011 | 04:53 AM
#17
Member #154
Joined: Oct 2000
Posts: 8,008
Likes: 1,088
From: SW CT & Long Island Sound
Road and Track (or Car and Driver...I forget which one) did a study and they concluded tailgate up. It was a few years back but I remember the study since I drive a pick-up as my main vehicle.
