08-30-2013, 06:54 PM
0
I removed mine. It seems that they are only a part of a fuel saving package and do nothing significant unless you have the entire package (which we don't). 2 trucks still have them on and they are no better on fuel than the others.
Interesting about their origins though.
Interesting about their origins though.












![[Image: alcatraz-prison-picture2-1.jpg]](http://i17.photobucket.com/albums/b78/lktraz/Sigs%20and%20Avs/alcatraz-prison-picture2-1.jpg)
![[Image: dont_care_offended.gif]](http://i17.photobucket.com/albums/b78/lktraz/Sigs%20and%20Avs/2012%20Bumper%20stickers/dont_care_offended.gif)