Sure, but that would almost certainly damage the paint if you were to try and remove them, while the adhesive on Air Tabs will not. Might not make any difference on the roof of a box, tho.
Savings is better fuel mileage. There are other benefits. With a van or any smaller vehicle, they give you better handling in the wind, especially when big truck passes you by. Because they reduce drag at the rear of the vehicle, they keep road spray down and out of your mirrors more, and more off the windshields of those behind you. They also keep the back doors much cleaner. If you have a roll-up door back there, you'll appreciate not having snow packed on the rear door, only to have it melt and rain on you when you're loading and unloading.
I might look into that next summer. I have a few things in mind that might do the trick.
We got them put on. I want everyone out there thinking about them to learn from my stupid mistake. WATCH OUT FOR YOU DOOR HINGES!!! Man, what an idiot. My doors would not open all the way. We had to remove several. There is my free, don't do the same stupid, learn from my mistake, tip for the day.
The truck rides MUCH better with them on. It handles "wakes" from other trucks far better and holding steady in the wind is much easier. Rain spray is greatly reduced. Have no information on fuel mileage. Been running reefer loads only since they went on.
Phil, I thought about putting a flat surface to attach them AFTER I put them on. Great minds think alike, eh?
The textured roof where the Air Tabs are to be placed needs to be sanded. Then you can clean with alcohol and attach the Air Tabs that are specifically made for the roof. We drove our old truck for 1 1/2 years with no problems of them coming off.
Started to put Air Tabs on our new truck and wished I read the post regarding the hinges First!!!!! Got about 12 on before we discovered the problem
