Just wanted to say that these have been great for us! So far, we’ve put them on our bumper pull cargo trailer, and they made a noticeable difference, mileage-wise, from the beginning.
We probably broke even on the few hundred dollar expense on the first cross-country haul. They have increased our MPG (diesel) from 13+ to 15-18(!):). So far, my husband has not noticed any difference with lessened turbulence from passing 18-wheelers - supposedly another Airtab benefit - but he’s never considered that an issue with this trailer, which is towed with an Equal-i-zer hitch.
We installed them ourselves – it was very easy and didn’t take much time.
I’m looking forward to someday putting these on my gooseneck horse trailer.
Definitely recommend Airtabs; many thanks to whoever mentioned them:yes:.