I got the Air Tabs installed but haven't ran them enough to tell if they are going to help. I never had a problem with rainspray so can't tell any difference there. I have noticed that when a 18 wheeler pulls back close in front of me the "buffeting" is reduced. Can still feel it but it is reduced. It is going to be hard to tell on fuel mileage because we idle the van to stay warm or cool when sleeping and waiting. That really messes up my MPG. This year Jan averaged 13.0, Feb 12.6, March 13.4, Apr 13.7, May 14.4, and so far June is 13.6. June has about half with and half without the Air Tabs.Every year April and May and Sept and Oct are the best fuel mileage months mostly because of the weather.
Jim N.
.Marshville NC
Received December 2008
JackAirtabs work great no sway when big truck pass don't know about mileage as I put them on when I first got truck. back stays nice and clean because no spray.Thanks,Bill AllenIf you want to learn a little more about Bill Allen and his remarkable story please visit http://www.expeditenow.com/news/publish/Expediter_Uses_Solar_Power_to_Eliminate_Idling.html . The items on top of the van are solar panels.