In this weeks RV new letter, I saw an ad for AirTab. These plastic pieces are glued to the rear of the RV for better air flow and performance, which I am translating to better gas mileage. Do they...
I have had them on two coaches and they worked fine. If the construction of your coach allows them to be installed correctly, they will provide less wind resistance from the vacuum created behind most vehicles. On my coach I noticed that they help in windy situations and they keep the rear of the coach cleaner. If they improved the fuel mileage, it was too little for me to notice.