Check this product out if you have a moment...
It is supposed to reduce turbulence and therefore drag at the rear of
vehicles and improve the laminar flow thus reducing fuel consumption.
Maybe it could have some slight benefit over long distances on
highways...can't see how it could help in stop start traffic where fuel
consumption is greatest anyhow.
I don't think I want to stick or rivet them to my nice paintwork...
 
My cynic alarm is going off and the words "snake oil" keep popping into
my head.
 
Anyway you be the judge....
 
http://www.fuelsavers.com.au/
 
Cheers,
Steve O
NSW Australia
'92 Transporter WBX Kombi
'00 Transporter Double Cab
'02 Transporter Double Cab (work truck)
'78 Land Rover 109 Series 3 soft top ute (ex-Aust.Army)