Does a Tonneau really ........
Rookie
Joined: Aug 2005
Posts: 97
Likes: 0
RE: Does a Tonneau really ........
Tonneaus can improve mileage ever so slightly. A soft cover will be better because it is lighter. The fiberglass cover are better at air flow, but add a good 150-200#, which reduces mileage. I wouldn't buy a tonneau just for the purpose of fuel economy. It will be negkigible.
Champion
Joined: Aug 2005
Posts: 3,313
Likes: 8
RE: Does a Tonneau really ........
In the Mythbusters show 'Myths Revisted'
where Adam mounted a Floscan Fuel gauge from a boat to his Dakota
they did find that tonneaus improved MPG
over either tailgate down (worst)
tailgate up (better than down)
tonneau (slightly better)
and fabric net with 1 inch square holes (slightly better than tonneau)
But Adam admitted that both he and Jamie were
'sick of doing pickup MPG tests'
In the more recent MPG tests
like on the Dodge Magnum drafting behind the 18 wheel truck
they have turned the testing over to Grant.
You can watch all the previous Mythbusters shows on your computer
by downloading the torrent files at:
http://www2.digitaldistractions.org:....php?showid=mb
where Adam mounted a Floscan Fuel gauge from a boat to his Dakota
they did find that tonneaus improved MPG
over either tailgate down (worst)
tailgate up (better than down)
tonneau (slightly better)
and fabric net with 1 inch square holes (slightly better than tonneau)
But Adam admitted that both he and Jamie were
'sick of doing pickup MPG tests'
In the more recent MPG tests
like on the Dodge Magnum drafting behind the 18 wheel truck
they have turned the testing over to Grant.
You can watch all the previous Mythbusters shows on your computer
by downloading the torrent files at:
http://www2.digitaldistractions.org:....php?showid=mb
Professional
Joined: Dec 2006
Posts: 150
Likes: 0
Record Breaker
Joined: Jul 2007
Posts: 1,300
Likes: 0
From: Back in NY!!
RE: Does a Tonneau really ........
I got a freedom cover by eXtang. I got about a 2-3mpg increase but I also installed it the same time I put a K&N filterin my truck and changed the oil to full synthetic.
All Star
Joined: Jul 2005
Posts: 981
Likes: 0
From:
RE: Does a Tonneau really ........
If I ever get a cover, it will be just for that, to cover whatever I am carrying.
I tell you, anything you add to your car now save gas and improves mpg. What a marketing scam!
I tell you, anything you add to your car now save gas and improves mpg. What a marketing scam!
Rookie
Joined: May 2007
Posts: 91
Likes: 0
From:
RE: Does a Tonneau really ........
just put an extang on my 2003 QC and had a 1 mpg gain, so in about 6 months should of paid for its self !
plus its so easy to fit and use ! and with the British weater at the moment it stops the back filling with rain water !
plus its so easy to fit and use ! and with the British weater at the moment it stops the back filling with rain water !
All Star
Joined: Jul 2005
Posts: 981
Likes: 0
From:
RE: Does a Tonneau really ........
uk guy, you guys have refineries there? yous so close to them oil fields and still pay that much. ****e mate, yous mates got soaked with floods.
I think its time yous mates start colonizing again. How much are yous paying for tea? $20?
I think its time yous mates start colonizing again. How much are yous paying for tea? $20?